Valves Catalogue

ALFATM 

GATE, GLOBE, CHECK 

CAST STEEL 

TOUCH OF IMPROVEMENTS THROUGH QUALITY VALVES

CONTENTS 

ALFA CAST STEEL VALVES 

API 600 STD 

TM 

ALFA 

VALVE DESIGN AND CONSTRUCTION 

x Standard Production Range 

x General Specification Standards 

x Valve Shell Materials 

x Valve Trim 

x Trim Materials 

x Packing Materials 

x Gasket Materials 

x Nace Valves 

ALFA CAST STEEL GATE VALVE 

x Gate ANSI Class 150, 300, 600, 900, 1500, 2500 

x Gate Pressure Seal Class 900, 1500, 2500 

ALFA CAST STEEL GLOBE VALVE 

x Globe ANSI Class 150, 300, 600, 900, 1500 

x Globe Pressure Seal Class 600, 900, 1500, 2500 

ALFA CAST STEEL SWING CHECK VALVE 

x Check ANSI Class 150, 300, 600, 900, 1500 

x Check Pressure Seal Class 1500, 2500 

ACCESSORIES 

x Bevel Gear Actuator 

x Electric Motor Actuator 

x Post Indicators 

(Handwheel Operator, Lever Operator,Gear Operator) 

x By-Passes & Drains 

x Gasket Materials and Construction 

x Packing and Gasket Comparison 

HOW TO ORDER ALFA GATE, GLOBE, CHECK VALVES 

2 

PT. ALFA VALVES INDONESIA 2015

Applicable Standards 

Applicable Standards 

ANSI B 16.5 

B 16.10 

B 16.25 

B 16.34 

B 1.20.1 

B 16.47 

B 31.1 

-Pipe flanges and flanged fittings 

-Face-to-face and end-to-end dimensions of vlaves 

-Butt-weld ends 

-Valves-flanged, threaded and butt-weld ends 

-Pipe threads, general purpose 

-Large steel flanges diameters (replaces API 605 and MSS SP-44) 

-Pipes for chemical plants and refineries 

ASTM - Material specification 

ASMEsection V, VIII and IX - Boiler and pressure vessel code 

API 

SPEC Q1 - Specification for quality programs 

Spec 6D - Specification for pipeline valves 

600 - Steel gate valves flanged and butt-weld ends 

Std 598 - Valve inspection and testing 

589 - Fire test sealing and sealant 

SPEC 5L - Specification for line pipe 

MSS - SP-6 

SP-25 

SP-44 

SP-53 

SP-54 

SP-55 

SP-120 

- Standard finishes for contact faces pipes flanges and valve flanges 

- Standar marking system for valves, fittings, flanges and unions 

- Steel pipeline flanges 

- Magnetic particle examination method 

- Radiographic examination method 

- Visual examination of steel castings 

- Flexible graphite packing system for rising stem valves (Design requirments) 

NACE MR-01-75 

Sulfide stress cracking resistant materials 

3 PT. ALFA VALVES INDONESIA 2015

PRODUCT ITEMS 

Valve Design and Construction 

STANDARD PRODUCTION RANGE 

VALVE NOMINAL SIZE in (mm) 

Valve Type Gate Globe 

Check 

Standard Body Material 

ASTM A216 Gr. WCB ASTM A216 Gr. WCB ASTM A216 Gr. WCB 

Design Standard Compliance API 600 ; ASME B16.34 ; API 6D ; BS 1414 ASME B16.34 ; BS 1873 ASME B16.34 ; API 6D ; BS 1868 

Pressure-Temp. Rating ASME B16. 34 ASME B16. 34 

ASME B16. 34 

ASME/ANSI CLASS 150 300 600 900 1500 2500 150 300 600 900 1500 2500 150 300 600 900 1500 2500 

2 50 

2-1/2 65 

3 80 

4 100 

5 125 

6 150 

8 200 

10 250 

12 300 

14 350 

16 400 

18 450 

20 500 

24 600 

26 650 

28 700 

30 750 

32 800 

36 900 

42 1050 

48 1200 

* It is possible to manufacture all material of valves according to the valve shell material as well as A216 WCB. Please 

see the shell materials table to the next. 

GENERAL SPECIFICATION AND STANDARDS 

Description 

Valve Design Compliance and Shell Wall Thickness 

Pressure - Temperature Ratings 

Face- to-Face or End- to- End Dimensions 

End Flange Dimensions & 

Gasket Contact Facing 

Finishes for Contact Face of RF & RTJ 

Buttwelding End Dimensions 

Inside Diameter of Flanged End min. 

Bolt and Nut Thread ASME / ANSI B1. 1. B18. 2. 1. B18. 2. 2. 

Material of Shell,Trim, Bolt, Nut and Others 

API 600. ASTM Respective specification 

Marking System 

MSS SP-25 

Chemical Composition Analysis Relevant ASTM 

Mechanical Property Test 

Relevant ASTM / ASTM A370 

Tests and Inspection 

Size 2"-20"& 24" 

22" 

26" and larger 

Pressure Test 

Radiographic Inspection 

Wet Magnetic Particle Inspection 

Liquid Penetrant Inspection 

Low Temperature Impact Test 

Dimensional Inspection 

Visual Inspection 

Gate 

Globe 

API 600;ASME B16.34;API 6D;BS 1414 ASME B16.34 ; BS 1873 

ASME / ANSI B16. 34 

ASME B16. 10 

ASME B16. 5 

MSS SP-44 

ASME B16. 47 Series A (MSS SP-44) or Series B(API 605) 


ASME B16. 25 


API 598 ; ASME / ANSI B16. 34 ; API 6D ; BS 6755 

ASME / ANSI B16. 34. ASTM E 142/E94 

ASME / ANSI B16. 34. ASTM E 709/A275 

ASME / ANSI B16. 34. ASTM E 165 

ASTM A352/E23 

Relevant Valve Standards 

MSS SP-55 

Check 

ASME B16.34;API 6D;BS 1868 


VALVE SHELL MATERIALS 

ALFA cast steel valves are optionally available with the material listed below: 


ALFA Code ASTM Specification Material Designation ** Working Temperature F ( C) 

WCB 

A216 Gr. WCB 

Carbon steel 

800 (427) Maximum 

WC1 A217 Gr. WC1 C - 1 / 2 Mo 

850 (454) Maximum 

WC6 

A217 Gr. WC6 

WC9 

A217 Gr. WC9 

1 1 / 4 Cr - 1 / 2 Mo 

2 1 / 4 Cr - 1Mo 

* 1100 (593) Maximum 

C5 

A217 Gr. C5 

5Cr - 1 / 2 Mo 

C12 

A217 Gr. C12 

9Cr - 1 Mo 

* 1200 (649) Maximum 

LCB 

A352 Gr. LCB 

Low Temp. Carbon steel 

LCC 

A352 Gr. LCC 

Low Temp. Carbon steel 

-50 (-46) Minimum 

LC1 

A352 Gr. LC1 

C - 1 / 2 Mo 

-75 (-59) Minimum 

LC2 

A352 Gr. LC2 

2 1 / 2 Ni 

-100 (-73) Minimum 

LC3 

A352 Gr. LC3 

3 1 / 2 Ni 

-150 (-101) Minimum 

CF3 

A351 Gr. CF3 

18Cr-8Ni(C 0.03) 

800 (427) Maximum 

CF8 

A351 Gr. CF8 

18Cr-8Ni(C 0.08) 

* 1500 (815) Maximum 

CF3M 

A351 Gr. CF3M 

18Cr-8Ni-2Mo(C 0.03) 

850 (454) Maximum 

CF8M 

A351 Gr. CF8M 

18Cr-8Ni-2Mo(C 0.08) 

* 1500 (815) Maximum 

CF8C 

A351 Gr. CF8C 

18Cr-10Ni-Cb 

* 1500 (815) Maximum 

CN7M 

A351Gr. CN7M 

19Cr-29Ni 

300 (149) Maximum 

* For welding end valves only. Flanged end ratings terminate at 1000 o F 

** Refer to ASME/ANSI B16.34 for details of ASTM A216, A217, A351 and A352 Pressure-temperature ratings. 

The minimum working temperatures of ASTM A352 are based on ASME B31.3 

o 

o 

VALVE TRIM 

The trim is comprised of the following : 

Description 

Body seating surface 

Gate/Disc seating surface 

Stem 

Bonnet Bushing (Backseat) 

Others 

Specied by 

Gate Valve Globe Valve Check Valve 

- 

- 

Small internal parts 

Disc Nut 

Hinge Pin 

API 600/BS-1414 BS 1873 

BS 1868 

TRIM MATERIALS 

Following trims specified in API 600 Table 3., are available from ALFA either as our standard or at customers option. 

API 

Trim No. 

1 

2 

5 

8 

9 

10 

11 

12 

13 

14 

ALFA 

Code 

A 

B 

D 

L 

M 

R 

S 

T 

U 

V 

Nominal Trim 

F6 

304 

Hardfaced(HF) 

F6 & HF 

Monel 

316 

Monel & HF 

316 & HF 

Alloy 20 

Alloy 20 & HF 

Body Seat * 

Surface 

13 Cr 

18Cr - 8Ni 

Co-Cr A (Stellite #6) 


Ni - Cu Alloy 

18Cr - 8Ni - 2Mo 



19Cr - 29Ni 


Disc Seat * 

Surface 

13 Cr 

18Cr - 8Ni 


13 Cr 

Ni - Cu Alloy 

18Cr - 10Ni - 2Mo 

Ni - Cu Alloy 

18Cr - 10Ni - 2Mo 

19Cr - 29Ni 

19Cr - 29Ni 

Stem / Hinge Pin 

/ Bonnet Bushing 

13 Cr 

18Cr - 8Ni 

13 Cr 

13 Cr 

Ni - Cu Alloy 

18Cr - 10Ni - 2Mo 

Ni - Cu Alloy 

18Cr - 10Ni - 2Mo 

19Cr - 29Ni 

19Cr - 29Ni 

Remark 

ALFA Standard 

Available optionally 

ALFA Standard 

ALFA Standard 


ALFA Standard 


ALFA Standard 



* Disc and Body Seat Ring base material shall be at least equal to the corrosion resistance of the shell material. 


GASKET/PACKING MATERIALS 

& ALFA NACE VALVES 


PACKING MATERIALS 

Packing Materials 

Carbon Fiber (Top & Bottom Rings) 

+ 

Die-Formed Graphite (Center Rings) 

Inconel Wire Reinforced Asbestos 

Inconel Wire Reinforced Carbon Fiber 

Graphite Asbestos 

Carbon Fiber 

PTFE Fiber 

Inconel Wire Reinforced Graphite 

Service Conditions 

Remark 

-148 0 F (-250 0 C) to 932 0 F (500 0 C) ALFA Standard 

1200 0 F (649 0 C) High Pressure 

1200 0 F (649 0 C) High Pressure 

650 0 F (343 0 C) Medium Pressure 

Available Optionally 

932 0 F (500 0 C) Medium Pressure 

500 0 F (260 0 C) Corrosion Resistant 

1112 0 F (600 0 C) Corrosion Resistant 

GASKET MATERIALS 

Bonnet 

Connection 

Type 

Gasket Materials 

150 

300 

ASME/ ANSI Class 

600 

900 

1500 

2500 

Corrugated Metal 

Spiral Wound Metal, Graphite Filled 

Ring Joint Metal 

Bolted Bonnet 

Non-Asbestos Sheet 

Spiral Wound Metal, PTFE filled 

Flexible Graphite Sheet 

Virgin PTFE 

GlassFilled PTFE 

ALFA Standard 

Optional 

NACE VALVES 

ALFA NACE valves are available at customers option that component materials specially heat treated and hardness controlled 

in accordance with NACE MR 01-75 Standard. 

Valve Parts Name 

ASTM Specification 

NACE Hardness 

API 600 Hardness 

Body / Bonnet 

Disc 

Disc Seating Surface 

A216 Gr. WCB 

A216 Gr. WCB or A182 Gr. F6a 

13 % Cr Deposit or A182 Gr. F6a 

Max. HRC 22 (237 HB) 

- 

Min. 300 HB 

Seat Ring 

A105 or A182 Gr. F6a 

- 

Seat Seating Surface 

Hardfaced 

- 

Min. 350 HB 

Stem 

200-275 HB 

Bonnet Bushing 

Gland Packing 

A276 Type 410 

Max. HRC 22 (237 HB) 

Min. 250 HB 

Lantern Ring 

Bonnet Bolts 

A193 Gr. B7 

A193 Gr. B7M 

- 

Max. HRC 22 (237 HB) 

- 

Bonnet Nuts 

A194 Gr. 2H 

A194 Gr. 2M 

- 

Max. HRC 22 (237 HB) 


Inspections and test 

ALFA VALVES 

A WAY TO A PERFECT PRODUCT 

Required inspection precesses are extensive and include visual and dimensional inspection, pressure test, 

verification of chemical composition, radiography and destructive tests for confirmation of specified safety 

factors of stem nut-stem-wedge connection at axial load. 

MANUFACTURING PROCESS 

MATERIAL 

PRODUCTION 

ASSEMBLY 

TESTS 

PACKAGING 

INSPECTION AND TESTS 

1. Input control 

a) MTRs control 

- chemical composition 

- mechanical properties 

- impact works 

- hardness 

2. Visual surfaces inspection 

(MSS SP 55) 

3. Dimension inspecton 

- Wall thickness etc. 

1. In-process inspection 

- machining of flange 

and sealing surfaces 

2. Inspection of parts 

according to manufacture 

documentation 

- dimensions, machining 

stem surface 

- stuffing box dimensions 

stuffing box surfaces 

- face-to-face dimensions 

inspection 

1. Parts inspection before 

assembly 

2. Functional test 

3, Sealing surfaces wear track 

4. Control of bonnet and 

stuffing box joints torques 

5. Visual inspection 

quality records 

1. Strength and tightness test 

2. Backseat test 100%. 

3. Closure tightness test 

a) by high pressure (API 598 

- upon customer’s 

requirement) 100%. 

b) by low pressure (always) 

100%. 

PRESERVATION 

DISPATCH 

1. Output control 

a) Marking 

- identification company name 

plate 

b) Way of seat fixation into 

body 

c) Bolts and nuts marking 

d) Stem protrusion 

3.Face-to-face dimensions 

e) Connection control 

4. Visual inspection of parts 

f) Preservation 

5. Crack detection tests 

g) Coating 

a) destructive 

- stem-wedge joint. 

h) Documentation 

b) non-destructive 

- radiography of castings 

critical areas, dye penetrant 

test of overlays, magnetic 

particle test, ultrasonic test 


Visual inspection 

Visual inspection 

Visual inspection is done on all castings used for ALFA-VALVES in accordance with M55 SP-55, quality regulation for steel 

castings and corresponsding specification in order. 

Hydrostatic test of strength 

and tightness. 

This test ensures, that valve body and bonnet withstands pressure 1,5 times higher then rated 

o o 

maximum working pressure at 100 F (+38 C) without visual leakage and dermation. Each valve is tested by water with 

o o 

temperature not exceeding 125 F (+52 C). 

Backseat test 

Backseat test ensures that stem backseat packing 

o 

of gate and globe valves does not show leakage at 1,1 multiple of 

o 

maximum working pressure at 100 F (+38 C). 

Closure tightness test by high 

pressure 

Closure tightness test bye high pressure is required for globe valves and swing check valves and is optional for gate valves. 

All caststeel valves are undergo closure test by high pressure. The test verivies valve ability to sealat 1,1 multipleof maximum 

o o o o 

working pressureat 100 F (+38 C) by water with temperature not exceeding 125 C (+52 C). 

Closure tightness test 

by low pressure 

Closure tightness test by low pressure is required for gate valves, it is optional for globe valves and may be offered as an 

alternative closure test for swing check valves. The test verivies integrity of valve sealingsurfaces at approximately 80 psi. 

each ALFA-VALVES gate valve is tested by air. 

Review of equivalent materials 

ASTM DIN, SEW CSN BS JIS 

A 216 WCB 

1.0619 GS - C 25 N 

42 26 43 

1504-161 Gr B 

G 5151 - SCPH 2 

A 352 LCC 

1.1138 GS - 21Mn5 

42 27 07 

1504-161 Gr A 

G 5121 - SCPL 1 

A 217 WC6 

1.7367 GS - 17CrMo 5 5 

42 27 44 

1504-621 

G 5151 - SCPH 21 

A 217 C5 

1.7363 GS - 12CrMo 19 5 

42 27 71 

1504-625 

G 5151 - SCPH 61 

Overall requirements on chemical composition and values of 

steel mechanical values according to ASTM 

Carbon 

Manganese 

Silicon 

Phosphor 

Sulphur 

Chrome 

Nickel 

Molybdenum 

Copper 

Vanadium 

Tungsten 

C ekv. 

Rp0.2 

Yield strength 

Rm 

Tensile Strength 

A5 

Elongation 

Z 

Redction of area 

o 

Kv (-46 C) 

Charpy V-Notch 

o 

energy (-50 C) 

max. 

min. 

min. 

min. 

min. 

Mpa 

Ksi 

Mpa 

Ksi 

% 

% 

J 

ft-lbf 

A 216 

WCB 

0.30 

1.0 

0.60 

0.04 

0.045 

0.50 

0.50 

0.20 

0.30 

0.03 

- 

0.50 

250 

36 

485-655 

70-95 

22 

35 

- 

- 

A 217 

Wc6 

0.05-0.20 

0.50-0.80 

0.60 

0.04 

0.045 

1.0-1.5 

0.5 

0.45-0.65 

0.5 

- 

0.10 

- 

275 

40 

485-655 

70-95 

20 

35 

- 

- 

A 352 

LCC 

0.25 

1.20 

0.60 

0.04 

0.045 

0.50 

0.50 

0.20 

0.30 

0.03 

- 

0.55 

275 

40 

485-655 

70-95 

22 

35 

20 

15 

A 217 

C5 

0.20 

0.40-0.70 

0.75 

0.04 

0.045 

4.0-6.5 

0.5 

0.45-0.65 

0.5 

- 

0.10 

- 

415 

60 

620-795 

90-115 

18 

35 

- 

- 

A 217 

C12 

0.20 

0.35-0.65 

1.0 

0.04 

0.045 

8.0-10.0 

0.5 

0.9-1.2 

0.5 

- 

0.10 

415 

60 

620-795 

90-115 

18 

35 

- 

- 

Maximum allowable element content in weight % except listed ranges 


Control 

Testing 

Hand wheel 

Gate valves are pressure tested 

according to API 598 

a/ strength and tightness test 

b/ backseat tightness test 

c/ clousure tightness by low pressure 

d/ closure tightness by high pressure 

( if requested in an order) 

Installation 

Yoke gate valves can be installed 

into pipeline in any position 

Order specification 

API 600 Standard applies for 

oredering. 

It is necessary to specify in an order: 

- type number 

- nominal diameter 

- pressure class 

- design - connection 

- wedge type 

- control mode 

- body and bonnet material 

- trim material 

- operating parameters 

- acceptance tests 

- accompanying documentation 

Chain wheel 

Remote control adapter 


ACTUATORS 

ACCESSORIES 

Bevel Gear Actuator 

Auxiliary gearing is often desirable to facilitate the operation of 

large size valves required to close against high pressure. 

ALFA cast steel valves can be supplied with fully mounted and 

tested totally enclosed bevel gear actuators. 

Inquiries or orders for valves with gear actuators should include 

the following information. 

· Size and figure number of valve 

· Service media, pressure and temperature 

· Maximum pressure against which valve must be close 

· Any hand wheel torque or rim pull imitation 

· Desired orientation of hand wheel to stem 

· Desired orientation of hand wheel to pipe run 

· Limitations, if any, on the type or brand of actuator 

Bevel Gear Actuator 

D 

(To Valve Center) H 

ALFA Standard 

Flow 

Options 

Type-A Type-B Type-C Type-D 

Flow 

Outlet 

Outlet 

Orientation of Handwheel 

Electric Motor Actuator 

ALFA'S maintains a trained technical staff experienced in the 

selection, mounting and testing of electric motor actuators 

produced by Rotork, Limitorque and others. 

In addition, our facilities and inventory are tailored to provide a 

rapid service in the supply or fully mounted and tested 

valve/actuators assemblies and accessories. 

Inquiries or orders for electric motor actuated valves should 

include the following information : 

· Size and figure number of valve 

· Service media, pressure and temperature 

· Maximum pressure against which valve must be close 

· Desired stem speed or closing time 

· Frequency of operation 

· Electric power available (voltage, frequency, phases) 

· Name type of electrical enclosure 

· Reversing controller specifications 

· Control station specifications 

· Accessories (limit switch, dial position indicator, etc) 

· Acceptable actuators manufactures 


ACTUATORS 

ANSI Class 150 

ACCESSORIES 

Post Indicators 

Handwheel Operator Lever Operator Gear Operator 

D 

G.L 

940 

H (*As Specified) 

G.L 

940 

H (*As Specified) 

G.L 

H (*As Specified) 940 

Others 

Others types of actuators, including Chain wheel, hammer 

blow, spur gear, worm gear, pneumatic and hydraulic 

actuators, can also be furnished when specified. 


BY - PASSES & DRAINS 

ACCESSORIES Accessories 

By-Passes 

Valve size 2”–4 “ 5”–8” 10”–24” 

Drain and 

By-pass size 

1/2" 3/4" 1” 

Boss size In. 1.5 1.75 2.125 

(Min.) mm 38.1 44.5 45.0 

ALFA cast steel valves can be furnished with all welded bypasses 

when specified. The standard by-pass configuration 

main valve with the stems of both valves parallel shown below. 

Piping and the OS & Y globe by-pass valve have a pressuretemperature 

rating and corrosion resistance equal to or 

exceeding that of the main valve. 

When other by-pass configurations are required, a sketch or 

drawing must accompany the order. 

Drains 

ALFA cast steel valves can be furnished with drains at any of the locations shown. Standard drain connections 

consist of a drilled, tapped and plugged hole at the location(s) specified. Other types of drains, including 

welded or threaded nipples with or without shut-off valves, can also be furnished when specified. 

I 

J 

K 

(On same 

side as E&F) 

H 

F 

F 

A 

A 

B 

A 

B 

E 

B 

C 

G 

D 

E 

C 

D 

C 

G 

D 

A 

B 

E&F 

C 

A 

B 

D 

C 

D 

D 

G 

E 

G 

F 

A&B 

C 

E 

F 

Gate Valve 

Globe Valve 

Check Valve 

Method of designating location of drains when specified 

Note : 

The above sketches represent valves with symmetrical shapes 

Sketches are illustrative only and do not imply design 


HOW TO ORDER ALFA CASTED GATE, GLOBE, & CHECK VALVES 

FIG. 

No. 

08" A G 06 F L 

- WCB - GO - F 1G B 

Desc : 

Valve 

Size 

Brand 

Valve 

Identi - 

fication 

Pressure 

Rating 

Connec - 

tion Type 

Trim 

- 

Body 

Material 

- 

Design 

Operator 

- 

Port 

Wedge / 

Disc 

Type 

Modification 

DESCRIPTION : 8 in ALFA GATE VALVE, ANSI CLASS 600, RAISED FACE, TRIM MATERIAL : 13% Cr. + HARDFACED, BODY MATERIAL : 

A216 Gr.WCB, GEAR OPERATED, FULL PORT, FLEXIBLE WEDGE, BOLTED BONNET 

0Q 

0H 

0T 

01 

1H 

02 

2H 

03 

04 

~ 

48 

VALVE 

VALVE SIZE BRAND PRESSURE RATING 

CONNECTION TYPE 

IDENTIFICATION 

1/4" 

1/2" 

3/4" 

1" 

1-1/2" 

2" 

2-1/2" 

3" 

4" 

~ 

48" 

ALFA 

G 

L 

C 

GATE 

GLOBE 

CHECK 

0Q 

01 

03 

04 

06 

09 

15 

25 

J1 

J2 

J4 

J6 









JIS 10K 

JIS 20K 

JIS 40K 

JIS 63K 

P 

F 

R 

B 

S 

T 

C 

A 

FLAT FACE 

RAISED FACE 

RING JOINT 

BUTT WELD 

SOCKET WELD 

SCREWED 

COMBINATION 

SPECIAL 

TRIM 

BODY MATERIAL 

API No. 

NOMINAL TRIM 

ALFA 

CODE 

1 

F6 

A 

2 

304 

B 

3 

F310 

C 

5 HARDFACED D 

7 

8 

9 

F6 and HARD F6 

F6 and HARDFACED 

MONEL 

E 

L 

M 

10 

316 

R 

11 MONEL and HARDFACED S 

12 316 and HARDFACED T 

13 ALLOY 20 

U 

14 ALLOY 20 and HF V 

- NACE 

X 

- SPECIAL 

Y 

WEDGE/DISC 

SEATING 

13 Cr 

18 Cr - 8Ni 

25Cr - 20Ni 

CoCrA (Stellite 6) 

13 Cr 

13 Cr 

Ni - Cu Alloy 

18 Cr - 8Ni - 2Mo 

Ni - Cu Alloy 

18 Cr - 8Ni - 2Mo 

19 Cr - 29Ni 

19 Cr - 29Ni 

Note 

Special 

SEAT SURFACE 

WCB 

STEM/BUSHING 

C5 

HINGE PIN 

WC6 

WC9 

C12 

LCB 

LCC 

13 Cr 

13 Cr 

LC3 

18 Cr - 8Ni 18 Cr - 8Ni CF8 

25Cr - 20Ni 25Cr - 20Ni CF8M 

CoCrA (Stellite 6) 13 Cr 

CF3 

13 Cr + Hard 13 Cr 13 Cr CF3M 

CoCrA (Stellite 6) 13 Cr CF8C 

Ni - Cu Alloy Ni - Cu Alloy CN7M 

18 Cr - 8Ni - 2Mo 18 Cr - 8Ni - 2Mo CK3M 

Ni - Cu Alloy Ni - Cu Alloy CD3MW 

18 Cr-8Ni-2Mo + St #6 18 Cr - 8Ni - 2Mo Mo 

19 Cr - 29Ni 19 Cr - 29Ni 4A 

19 Cr - 29Ni + Stell. #6 19 Cr - 29Ni B61 

Note 

Note 

B62 

Special 

Special B14 

CI1 

DI3 

DI5 

SP 

ASTM A216 Gr. WCB 

ASTM A217 Gr. C5 

ASTM A217 Gr. WC6 



ASTM A352 Gr. LCB 

ASTM A352 Gr. LCC 

ASTM A352 Gr. LC3 

ASTM A351 Gr. CF8 

ASTM A351 Gr. CF8M 



ASTM A351 Gr. CF8C 

ASTM A351 Gr. CN7M 

ASTM A351 Gr. CK3MCuN 

ASTM A351 Gr. CD3MWCuN 

ASTM A296 Gr. M35 

ASTM A890 Gr. 4A 

ASTM B61 Gr. C92200 


ASTM B148 Gr. C95600 

ASTM A126 Class B 

ASTM A395 

ASTM A536 

SPECIAL ALLOY 

DESIGN OPERATOR PORT WEDGE / DISC TYPE MODIFICATION 

HW 

GO 

CW 

HO 

PO 

MO 

Hand Wheel 

Gear Operated 

Chain Wheel 

Hydraulic Operated 

Pneumatic Operated 

Motor Operated 

F 

R 

S 

Full Port 

Reduced Port 

Special port 

1G 

2G 

3G 

4G 

5G 

1L 

2L 

3L 

4L 

5L 

1C 

2C 

3C 

4C 

5C 

Flexible Wedge 

Solid Wedge 

Split Wedge 

Slab Gate 

Expanding Gate 

Plug Disc 

Ball Disc 

Parabolic Disc 

Needle Disc 

V-Port Disc 

Swing Type 

Ball Type 

Ball Spring 

Piston Type 

Piston Spring Type 

B 

W 

C 

D 

N 

P 

R 

T 

N 

PS 

EB 

CY 

TC 

YC 

YL 

: Bolted Bonnet / Cap 

: Welded Bonnet / Cap 

: By-pass 

: Drain 

: Non-Rising Stem 

: Position Indicator 

: Sealant Injector 

: Teflon Seating Surface 

: NACE Standard 

: Pressure Seal 

: Extended Body 

: Cryogenic 

: Through Conduit 

: Y - Check 

: Y - Globe 


ALFATM 

GATE VALVE 


DESIGN FEATURES 


TM 

ALFA 

CLASS 150 Cast Steel Gate Valves with fixed handwheel and rising stem 

( outside screw and yoke ) 

Handwheel 

Stem Nut Retainer 

Stem Nut, replaceable in line 

Rissing stem with precision 

ACME double thread for quick 

operation. 

Handwheel Nut 

Set Screw 

Stem 

Yoke 

Stem-gate connection designed 

so that under severe applied 

loads (stuck gate), the stem will 

fail outside of the stuffing box 

pressure boundry. 

Stem Nut 

Eyebolt 

Stem Packing is designed for 

optimum control of fugitive 

emissions leakage to the 

atmosphere. the ultra-low 

emission leakage rate is assured 

by the fine finish on the stem 

sealing area, the reduced 

diametrical clearances and the 

stem straightness control. 

Eyebolt Nut 

Gland Plate 

Packing Bushing 

Stem Packing 

Eyebolt Pin 

Backseat, designed to relieve 

back pressure on the stem 

packing when fully seated 

Replacing stem packing under 

pressure is not recommended 

Bonnet Bushing 

Bonnet 

Bonnet Stud 

Body to Bonnet joint designed 

to aplly a uniform load to the 

gasket to assure a leak proof 

seal. 

Bonnet Stud Nut 

Bonnet Gasket 

Body 

Seat rings are seal welded to 

provide a bubble tight joint. 

Seat Ring 

Stellited Seat Rings provide 

increased resistance to wear, 

abrasion and eerosion of the 

sealing surfaces. 

Gate ( Disc ) 


DESIGN 

300 ABOVE CLASS 


TM 

ALFA 


CONTENTS 

Gate Valves 

TM 

ALFA 

Applications 

As a shut - off valve for : 

non - corrosive liquids, water, saturated steam, oil, air, crude oil and crude 

oil products. Operation parameters are in accordance wuth ASME/ANSI B 

16.34 standard. 

o 

o o o 

Standard ambient temperature: from - 13 F to + 122 F ( -2 C to + 50 C ). 

Application for other working media or higher temperature must be 

consulted with the manufacturer. 

Face-to-face dimensions: 

Main and connecting dimensions are evident from table. Face-to-face 

dimensions are in accordance with ANSI B 16.10. 

Gate valves connecting flanges are cast as one unit together with body 

and are made according to ANSI B 16.5 for NPS up to 24” and 

according to MSS SP - 44 or API 605 for NPS 30” and 36”. 

Gate valves with butt-weld ends are made according to ANSI B 16.25. 

Material wariants: 

ALFA gate valves are made of the following materials: 

ASTM A 216 WCB, ATSM A 352 LCC, ASTM A 352 LCB, 

ASTM A 217 Wc6, ASTM A 217 C5, ASTM A 217 C12, A 351 CF8M*. 

Standard Trims of ALFA gate valves are TRIMS Nr. 1, 5, 8, 10, 11, 12 

according to API 600. 

Technical descpription: 

ALFA steel gate valves design complies to API 600 and BS 1414. 

Gate valves are yoke, flanged or with butt-weld erds, full bore, flexible 

wege and bolted body-bonnet joint. 

Seats 

Sealing seats are welded into a body. Seats have standard 

hardfaced overlay. 

Wedge 

Wedges may be cast or forged. All wedges are guided, so as to 

minimize the wear of sealing surfaces and to assure aligment of stem, 

wedge and seats. Wedges and seats of large nominal diameters 

(14”-24”) of Class 150 are specialla designed to improve their 

sealing characteristics. 


CONTENTS 

Gate Valves 

TM 

ALFA 

Stem 

The valves have rising, non-rotary stem. Standard stem threads are 

Acme 2G-LH. Connection stem-wedge is an integral T-shape 

preventing losing of a stem out of a wedge during operation. 

Connection losing of a stem out nut was tested by an independent 

organization to fully comply with the strength requirements at axial 

stress according to API 591. 

Rising stem protrusion out of stem nut is in accordance with API 600 

and enables operator to determine wedge position inside valves body. 

Control 

All ALFA gate valves are controlled by handwheel as standard. After agreement they can be 

supplied with bevel gear box or electric servomotor (MOV). 

Yokes of sizes large than 8” in Classes 150 and 300 and 6” in Classes 600 to 1500 are 

provide with antifriction bearings for easier control and lower torque (OPTIONAL). 

Special equipment 

Manufacturing program 

Upon special customer’s requirement, gate valves 

may be equipped with: 

- drain 

- deaeration 

- by-passing from interspace 

- by-passes. 

CLASS NPS (”) 

150 

300 

600 

900 

1500 

2 

2 

2 

2 

2,5 

2,5 

2,5 

3 

3 

3 

3 

3 

4 

4 

4 

4 

4 

6 

6 

6 

6 

6 

8 

8 

8 

8 

8 

10 

10 

10 

10 

10 

12 

12 

12 

12 

12 

-4 

-4 

-4 

16 

16 

16 

18 

18 

18 

20 

20 

20 

30 

30 

36 

Packing 

Gland flange assembly of ALFA steel gate valves consists in accordance with 

API 600 of two parts - bushing and gland flange. this design enables steady 

compression of stem packing in a stuffing box. 

Dimensions,tolerance and machining are in accordance with MSS SP-120 standard. 

Packing material - die formed graphite rings from expanded graphite and 

braided graphite rings. 

Chemical and temperature resistance and sealing ability of graphite sealant 

itself contribute to reliable operation and increase of gate valves working 

life. 

Perfect tightness in open position and replacement of packing is enabled 

due to backseat, which is created by conical surface on stem, fitting in open 

psition into backseat insert in bottom part of a bonnet. 


CAST STEEL GATE VALVE 

ANSI Class 150 & 300 

STANDARDS COMPLIANCE : 

Basic Design : 

API Std. 600 ; BS 1414 ; ASME B16.34 ; API Spec. 6D 

Face-to-Face / End-to-End : 

ASME B16.10 

End Flange : 

2 in - 24 in ASME B16.5 

26 in - 48 in ASME B16.47 Series A or MSS SP-44 

Welding End : 

ASME B16.25 

AG01F 

AG01R 

AG01B 

Operation : 

Size Standard Option 

2 in - 8 in 

10 in - 16 in 

18 in - 24 in 

26 in & Larger 

Handwheel 

Handwheel 

Bevel Gear 

Bevel Gear 

- 

Bevel Gear 

Handwheel 

- 

ANSI CLASS 150 ANSI CLASS 300 

ALFA FIGURE No. : 

Raised Face Flange End 

Ring-Type Joint Flange End 

Buttwelding End 

AG03F 

AG03R 

AG03B 





Parts Description and Materials List 

PART 

No. 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

PART NAME 

BODY 

SEAT RING 

SEAT SEATING SURFACE 

GATE / DISC 

GATE SEATING SURFACE 

STEM 

GASKET 

BONNET 

BONNET BOLTS NUTS 

BONNET BOLTS 

BONNET BUSHING 

GLAND PACKING 

EYE BOLT PINS 

GLAND EYE BOLTS 

GLAND 

GLAND FLANGE 

EYE BOLT NUTS 

GREASE NIPPLE 

YOKE SLEEVE 

RETAINING NUT 

HANDWHEEL 

HANDWHEEL NUT 

MATERIALS 

ASTM Specifications (Grades / Types) 

A216 A352 A217 A351 

WCB LCC WC6 C5 CF8M 

A216-WCB A352-LCC A217-WC6 A217-C5 A351-CF8M 

A105 ; LF2 ; 304 SS ; 316 SS 

13 % Cr ; HF (STELLITE) ; 304 SS ; 316 SS ; MONEL 



13 % Cr ; 304 SS ; 316 SS ; 17-4PH ; MONEL 

CORRUGATED SOFT IRON ; SPIRAL WOUND 


A194-2H A194-4 A194-2H A194-4 A194-8 

A193-B7 A320-L7 A193-B7 A193-B16 A193-B8 

13 % Cr ; 304 SS ; 316 SS 

BRAIDED GRAPHITE & DIE FORMED GRAPHITE RING ; PTFE 

CARBON STEEL 

316 SS 

A193-B7 A320-L7 A193-B7 A193-B8 

13 % Cr ; 304 SS ; 316 SS 


A194-2H A194-7M A194-2H A194-8 

CARBON STEEL 

316 SS 

ASTM A439-D2C 

CARBON STEEL 

316 SS 

MALLEABLE IRON 

CARBON STEEL 

316 SS 



DIMENSION AND WEIGHTS 

ANSI Class 150 & 300 

ANSI CLASS 150 

NOMINAL 

SIZE 

L 

RF 

Face-to-Face / End-to-End Flange OD Height 

L1 

RTJ 

L2 

BW 

Handwheel 

in mm in mm in mm in mm in mm in mm in mm Kgs 

2 50 7,00 178 7,50 191 8,50 216 6,00 152,4 16,10 408,9 7,9 200 18 

2 1/2 65 7,50 190 8,00 203 9,50 241 7,00 177,8 17,40 442,0 7,9 200 28 

3 80 8,00 203 8,50 216 11,12 282 7,50 190,6 20,00 508,0 9,8 250 34 

4 100 9,00 229 9,50 241 12,00 305 9,00 228,6 23,20 589,3 9,8 250 52 

5 125 10,00 254 10,50 267 15,00 381 10,00 254,0 27,90 708,7 9,8 250 71 

6 150 10,50 267 11,00 279 15,88 403 11,00 279,4 31,50 800,1 11,8 300 88 

8 200 11,50 292 12,00 305 16,50 419 13,50 342,9 37,80 960,1 13,8 350 144 

10 250 13,00 330 13,50 343 18,00 457 16,00 406,4 45,60 1158,2 15,7 400 197 

12 300 14,00 356 14,50 368 19,75 502 19,00 482,6 54,30 1379,2 17,7 450 298 

14 350 15,00 381 15,50 394 22,50 572 21,00 533,4 60,75 1543,1 19,7 500 406 

16 400 16,00 406 16,50 419 24,00 610 23,50 596,9 68,40 1737,4 23,6 600 524 

18 450 17,00 432 17,50 445 26,00 660 25,00 635,0 77,10 1958,3 23,6 600 720 

20 500 18,00 457 18,50 470 28,00 711 27,50 698,5 87,20 2214,9 26,8 680 1117 

24 600 20,00 508 20,50 521 32,00 813 32,00 812,8 102,30 2598,4 29,9 760 1466 

26 650 22,00 559 22,50 572 34,00 864 34,25 870,0 121,50 3086,1 GO GO 1699 

28 700 24,00 610 24,50 622 36,00 914 36,50 927,1 131,00 3327,4 GO GO 1931 

30 750 24,00 610 24,50 622 36,00 914 38,75 984,3 142,00 3606,8 GO GO 2380 

32 800 26,00 660 26,50 673 38,00 965 41,75 1060,5 146,00 3708,4 GO GO 2490 

36 900 28,00 711 28,50 724 40,00 1016 46,00 1168,4 154,50 3924,3 GO GO 3600 

42 1050 32,00 813 32,50 826 45,00 1143 53,00 1346,2 179,00 4546,6 GO GO 4710 

48 1200 42,00 1067 42,50 1080 54,00 1372 59,50 1511,3 204,00 5181,6 GO GO 6500 

D 

H 

(Open) 

W 

Weight 

Wt 


NOMINAL 

SIZE 

Face-to-Face / End-to-End 

L / L2 

RF / BW 

L1 

RTJ 

Flange OD 

D 

Height 

H 

(Open) 

Handwheel 

W 

Weight 

Wt 

in mm in mm in mm in mm in mm in mm Kgs 

2 50 8,50 216 9,12 232 6,50 165,1 16,70 424,2 7,9 200 24 

2 1/2 65 9,50 241 10,12 257 7,50 190,5 18,10 459,7 7,9 200 44 

3 80 11,12 282 11,74 298 8,25 209,6 21,00 533,4 9,8 250 52 

4 100 12,00 305 12,62 321 10,00 254,0 24,20 614,7 9,8 250 76 

5 125 15,00 381 15,62 397 11,00 279,4 26,10 662,9 13,8 350 94 

6 150 15,88 403 16,50 419 12,50 317,5 31,30 795,0 13,8 350 146 

8 200 16,50 419 17,12 435 15,00 381,0 39,90 1013,5 15,7 400 218 

10 250 18,00 457 18,62 473 17,50 444,5 48,50 1231,9 17,7 450 352 

12 300 19,75 502 20,37 517 20,50 520,7 57,00 1447,8 19,7 500 472 

14 350 30,00 762 30,62 778 23,00 584,2 64,80 1645,9 23,6 600 694 

16 400 33,00 838 33,62 854 25,50 647,7 72,50 1841,5 23,6 600 1080 

18 450 36,00 914 36,62 930 28,00 711,2 76,50 1943,1 26,8 680 1235 

20 500 39,00 991 39,75 1010 30,50 774,7 84,80 2153,9 35,8 910 1655 

24 600 45,00 1143 45,88 1165 36,00 914,4 100,50 2552,7 37,8 960 2320 

26 650 49,00 1245 50,00 1270 38,25 971,6 108,30 2750,8 GO GO 3100 

28 700 53,00 1346 54,00 1372 40,75 1035,1 122,05 3100,1 GO GO 3890 

30 750 55,00 1397 56,00 1422 43,00 1092,2 130,71 3320,0 GO GO 4930 

32 800 60,00 1524 61,12 1552 45,25 1149,4 140,20 3561,1 GO GO 5230 

36 900 68,00 1727 69,12 1756 50,00 1270,0 153,94 3910,1 GO GO 6885 



ANSI Class 600, 900, 1500, 2500 



API Std. 600 ; BS 1414 ; ASME B16.34 ; API Spec. 6D 


ASME B16.10 

End Flange : 

Class 600# : 

2 in - 24 in ASME B16.5 

26 in - 36 in ASME B16.47 Series A or MSS SP-44 

Class 900# : 

2 in - 24 in ASME B16.5 

Class 1500# : 

2 in - 16 in ASME B16.5 

Class 2500# : 

2 in - 10 in ASME B16.5 

Welding End : 

ASME B16.25 

CLASS 

600 

900 

1500 

2500 

AG06F 

AG06R 

AG06B 

AG09F 

AG09R 

AG09B 

AG15F 

AG15R 

AG15B 

AG25F 

AG25R 

AG25B 














CLASS 

600 

& 

900 

1500 

2500 


2 in - 4 in Handwheel - 

6 in - 8 in Handwheel Bevel Gear 

10 in - 12 in Bevel Gear Handwheel 

14 in & Larger Bevel Gear - 


6 in Handwheel Bevel Gear 

8 in - 12 in Bevel Gear Handwheel 



6 in Handwheel Bevel Gear 



PART 

No. 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

PART NAME 

BODY 

SEAT RING 


GATE / DISC 

GATE SEATING SURFACE 

STEM 

GASKET 

BONNET 


BONNET BOLTS 


GLAND PACKING 

EYE BOLT PINS 

GLAND EYE BOLTS 

GLAND 

GLAND FLANGE 

EYE BOLT NUTS 

GREASE NIPPLE 

YOKE SLEEVE 

RETAINING NUT 

HANDWHEEL 

HANDWHEEL NUT 

MATERIALS 


A216 A352 A217 A351 



A216-WCB 

A194-2H A194-4 

A193-B7 

A105 ; LF2 ; 304 SS ; 316 SS 


A352-LCC 

A217-WC6 A217-C5 A351-CF8M 


13 % Cr ; 304 SS ; 316 SS ; 17-4PH ; MONEL 

SPIRAL WOUND (600# ONLY), RING JOINT-IRON 

A216-WCB A352-LCC A217-WC6 

A217-C5 

A351-CF8M 

A194-2H A194-4 A194-8 

A320-L7 A193-B7 A193-B16 A193-B8 

13 % Cr ; 304 SS ; 316 SS 

BRAIDED GRAPHITE & DIE FORMED GRAPHITE RING ; PTFE 

CARBON STEEL 

316 SS 

A193-B7 A320-L7 A193-B7 A193-B8 

13 % Cr ; 304 SS ; 316 SS 


A194-2H A194-7M A194-2H A194-8 

CARBON STEEL 

ASTM A439-D2C 

CARBON STEEL 


CARBON STEEL 

316 SS 

316 SS 

316 SS 





ANSI Class 600, 900, 1500, 2500 

NOMINAL 

SIZE 


L / L2 

RF / BW 

L1 

RTJ 

Flange OD 

D 

Height 

H 

(Open) 

Handwheel 

W 

Weight 

Wt 


2 50 11,50 292 11,62 295 6,50 165,1 18,00 457,2 9,8 250 46 

2 1/2 65 13,00 330 13,12 333 7,50 190,5 20,00 508,0 9,8 250 55 

3 80 14,00 356 14,12 359 8,25 209,6 22,60 574,0 9,8 250 72 

4 100 17,00 432 17,12 435 10,75 273,1 28,00 711,2 13,8 350 126 

5 125 20,00 508 20,12 511 13,00 330,2 32,50 825,5 15,7 400 185 

6 150 22,00 559 22,12 562 14,00 355,6 37,50 952,5 17,7 450 256 

8 200 26,00 660 26,12 663 16,50 419,1 44,50 1130,3 19,7 500 410 

10 250 31,00 787 31,12 790 20,00 508,0 52,50 1333,5 21,7 550 633 

12 300 33,00 838 33,12 841 22,00 558,8 57,80 1468,1 26,8 680 981 

14 350 35,00 889 35,12 892 23,75 603,3 63,90 1623,1 29,9 760 1316 

16 400 39,00 991 39,12 994 27,00 685,8 71,50 1816,1 29,9 760 1672 

18 450 43,00 1092 43,12 1095 29,25 743,0 89,00 2260,6 GO GO 2070 

20 500 47,00 1194 47,25 1200 32,00 812,8 106,50 2705,1 GO GO 2405 

24 600 55,00 1397 55,38 1407 37,00 939,8 110,60 2809,2 GO GO 4550 

26 650 57,00 1448 57,50 1461 40,00 1016,0 115,00 2921,0 GO GO 5260 

28 700 61,00 1549 61,50 1562 42,25 1073,2 123,50 3136,9 GO GO 5960 

30 750 65,00 1651 65,50 1664 44,50 1130,3 131,00 3327,4 GO GO 6700 

32 800 70,00 1778 70,62 1794 47,00 1193,8 141,00 3581,4 GO GO 8312 

36 900 82,00 2083 82,62 2099 51,75 1314,5 158,00 4013,2 GO GO 10125 


NOMINAL 

SIZE 


L / L2 

RF / BW 

L1 

RTJ 

Flange OD 

D 

Height 

H 

(Open) 

Handwheel 

W 

Weight 

Wt 


2 50 14,50 368 14,62 371 8,50 215,9 14,50 368,3 11,8 300 95 

2 1/2 65 16,50 419 16,62 422 9,62 244,3 27,80 706,1 13,8 350 108 

3 80 15,00 381 15,12 384 9,50 241,3 27,40 696,0 13,8 350 125 

4 100 18,00 457 18,12 460 11,50 292,1 32,50 825,5 15,7 400 192 

6 150 24,00 610 24,12 613 15,00 381,0 42,00 1066,8 19,7 500 378 

8 200 29,00 737 29,12 740 18,50 469,9 52,00 1320,8 23,6 600 635 

10 250 33,00 838 33,12 841 21,50 546,1 60,60 1539,2 29,5 750 900 

12 300 38,00 965 38,12 968 24,00 609,6 72,50 1841,5 33,5 850 1550 

14 350 40,50 1029 40,88 1038 25,25 641,4 79,70 2024,4 GO GO 2170 

16 400 44,50 1130 44,88 1140 27,75 704,9 85,40 2169,2 GO GO 3070 

18 450 48,00 1219 48,50 1232 31,00 787,4 87,87 2231,9 GO GO 3930 

20 500 52,00 1321 52,50 1334 33,75 857,3 95,87 2435,1 GO GO 5120 

24 600 61,00 1549 61,75 1568 41,00 1041,4 112,80 2865,1 GO GO 7800 




ANSI Class 600, 900, 1500, 2500 


NOMINAL 

SIZE 


L / L2 

RF / BW 

L1 

RTJ 

Flange OD 

D 

Height 

H 

(Open) 

Handwheel 

W 

Weight 

Wt 


2 50 14,50 368 14,62 371 8,50 215,9 22,00 558,8 11,8 300 98 

2 1/2 65 16,50 419 16,62 422 9,62 244,3 26,50 673,1 15,7 400 127 

3 80 18,50 470 18,62 473 10,50 266,7 28,00 711,2 17,7 450 168 

4 100 21,50 546 21,62 549 12,25 311,2 33,00 838,2 19,7 500 277 

6 150 27,75 705 28,00 711 15,50 393,7 55,00 1397,0 23,6 600 640 

8 200 32,75 832 33,13 842 19,00 482,6 71,80 1823,7 GO GO 1180 

10 250 39,00 991 39,38 1000 23,00 584,2 80,80 2052,3 GO GO 2100 

12 300 44,50 1130 45,12 1146 26,50 673,1 84,00 2133,6 GO GO 3244 

14 350 49,50 1257 50,25 1276 29,50 749,3 89,30 2268,2 GO GO 3693 

16 400 54,50 1384 55,38 1407 32,50 825,5 95,30 2420,6 GO GO 4890 


NOMINAL 

SIZE 


L / L2 

RF / BW 

L1 

RTJ 

Flange OD 

D 

Height 

H 

(Open) 

Handwheel 

W 

Weight 

Wt 


2 50 17,75 451 17,87 454 9,25 235,0 27,60 701,0 13,8 350 135 

2 1/2 65 20,00 508 20,25 514 10,50 266,7 29,50 749,3 17,7 450 210 

3 80 22,75 578 23,00 584 12,00 304,8 34,60 878,8 21,7 550 271 

4 100 26,50 673 26,88 683 14,00 355,6 42,50 1079,5 28,3 720 506 

6 150 36,00 914 36,50 927 19,00 482,6 53,90 1369,1 GO GO 1571 

8 200 40,25 1022 40,87 1038 21,75 552,5 60,50 1536,7 GO GO 2401 

10 250 50,00 1270 50,88 1292 26,50 673,1 80,50 2044,7 GO GO 4520 


Table of Gate Valves 

Table of gate valves Cv coefficiants (gal-min) 

NPS (”) CLASS 150 CLASS 300 CLASS 600 CLASS 900 CLASS 1500 

max p = 285 psig max p = 740 psig max p = 1480 psig max p = 2220 psig max p = 3705 psig 

2 

298.7 289.8 260.7 - 249.1 

2 1/2 

466.7 452.8 407.4 - - 

3 

694.1 672.1 586.6 560.5 

4 

1234.0 1194.8 1068.6 1018.9 975.5 

6 

2873.9 2776.4 2404.4 2346.5 2242.2 

8 

5109.1 4935.8 4385.6 4274.6 4075.6 

10 

8622.6 7982.9 7244.4 6852.5 6518.1 

12 

1241.5 11929.4 10753.0 10138.0 9617.8 

14 

17651.7 15646.6 15116.0 - - 

16 

23055.3 21207.8 20436.3 - - 

18 

30603.6 26841.1 26841.1 - - 

20 

37782.2 34490.3 34490.3 - - 

24 

57349.4 51874.4 51874.4 - - 

30 

95044.0 85010.0 - - - 

36 

146313.1 - - - - 

Unit conversions : 

Kv = 6/7 Cv 2 

1 psig = 0.006895 N/mm -5 3 

1 gal (US)/min = 6.30902.10 m /s 

Table of gate valves torques (ft lbs) 

NPS (”) CLASS 150 

2 3* 8 8* 19 16* 37 - - 70* 165 

2 1/2 

max p = 285 psig 

slide antifriction 

bearing 

bearing 

CLASS 150 

3* 16 18* 41 34* 79 - - - - 

3 8* 18 19* 45 29* 68 56* 125 998 219 

4 10* 24 26* 60 46* 103 83* 182 159* 339 

6 24* 59 66* 142 135 - 200 - 336 - 

8 45* 102 127* 244 167 - 364 - 784 - 

10 80* 166 174* 368 301 - 655 - 1253 - 

10 80* 166 174* 368 301 - 655 - 1253 - 

14 157 - 235 - 674 - - - - - 

16 222 - 350 - 906 - - - - - 

18 310 - 447 - 1246 - - - - - 

20 389 - 673 - 1554 - - - - - 

24 680 - 693 - 2689 - - - - - 

30 1257 - 1432 - - - - - - - 

36 2039 - - - - - - - - - 

Note: coefficient of friction is spepcified for media: water, oil, oil products. It is valid for stellite overlay on sealing surfaces wedge-seat 

(*) - only for use with specific actuator type 

Unit conversions: 1 ft lbs = 1.355818 N m 

2 

1 psig = 0.006895 N/mm 

Kv = 6/7.Cv 



bearing 

bearing 

CLASS 150 



bearing 

bearing 

CLASS 150 



bearing 

bearing 

CLASS 150 



bearing 

bearing 


Assigment of gear boxes and actuators 

Nr. of revolutions Connection I. Gear II. Gear Stem 

Class NPS 

to close ISO 5210 AUMA/EXEECOI AUMA/ROTORK diameter 

150 

2” 

21/2” 

3” 

4” 

6” 

8” 

10” 

12” 

14” 

16” 

18” 

20” 

24” 

30” 

36” 

17 

18 

18 

23 

33.5 

43.75 

43.75 

52 

57 

66 

74 

82 

74 

91 

74.5 

F10 

F10 

F10 

F10 

F10 

F10 

F14 

F14 

F14 

F14 

F14/F16 

F14/F16 

F16/F25 

F25/F30 

G25/F30 

GK10.2/IB2 

GK10.2/IB2 

GK10.2/IB2 

GK10.2/IB2 

GK10.2/IB2 

GK10.2/IB2 

GK14.2/IB5 

GK14.6/IB5 

GK14.2/IB5 

GK14.2/IB5 

GK14.6/IB5 

GK14.6/IB5 

GK16.2/IB7 

GK25.2/IB9 

GK25.2/IB9 

SA07.1/IQ7 

SA07.1/IQ7 

SA07.1/IQ7 

SA07.1/IQ7 

SA10.1/IQ11 

SA10.1/IQ11 

SA14.1/Q16 

SA14.5/IQ30* 

SA14.1/IQ30* 

SA14.1/IQ30* 

SA14.5/IQ30 

SA14.5/IQ30 

SA16.1/IQ40 

SA25.1/IQ70 

SA25.1/IQ90 

3/4” 

1” 

71” 

1” 

1 1/8” 

1 1/4” 

1 3/8” 

1 5/8 

1 5/8” 

1 3/4” 

2” 

2” 

2 3/8U 

2 3/4” 

3” 


Class NPS 


300 

2” 

21/2” 

3” 

4” 

6” 

8” 

10” 

12” 

14” 

16” 

18” 

20” 

24” 

30” 

17 

18 

18 

23 

33.5 

37 

45 

52 

57 

66 

74 

61.5 

74 

63 

F10 

F10 

F10 

F10 

F14 

F14 

F14 

F14 

F14 

F14/F16 

F14/F16 

F16 

F25 

F30/F35 

GK10.2/IB2 

GK10.2/IB2 

GK10.2/IB2 

GK10.2/IB2 

GK14.2/IB5 

GK14.6/IB5 

GK14.6/IB5 

GK14.6/IB5 

GK14.2/IB5 

GK14.6/IB5 

GK14.6/IB5 

GK16.2/IB7 

GK25.2/IB9 

GK30.2/IB11 

SA07.1/IQ7 

SA07.5/IQ11 

SA07.5/IQ11 

SA10.1/IQ11 

SA14.1/IQ14 

SA14.5/IQ16 

SA14.5/IQ30* 

SA14.5/IQ30* 

SA14.1/IQ30* 

SA14.5/IQ30 

SA14.5/IQ30* 

SA16.1/IQ40 

SA25.1/IQ40 

SA30.1/IQ70 

3/4” 

1” 

1” 

1” 

1 1/4” 

1 3/8” 

1 5/8” 

1 5/8” 

1 3/4” 

2” 

2” 

2 3/8” 

2 3/4” 

3 1/4” 


Class NPS 


600 

2” 

3” 

4” 

6” 

8” 

10” 

12” 

14 

18 

18.5 

29 

26 

32.5 

38 

F14 

F14 

F14 

F16 

F25 

F25 

F25 

GK14.2/IB5 

GK14.2/IB5 

GK14.6/IB5 

GK16.2/IB7 

GK25.2/IB9 

GK25.2/IB9 

GK25.2/IB9 

* - for IQ30 connection according to ISO 5210 - F16 

** - for IQ40 according ti ISO 5210 - F25 

SA14.1/IQ14 

SA14.1/IQ16 

SA14.5/IQ30* 

SA16.1/IQ40 

SA25.1/IQ40 

SA25.1/IQ70 

SA25.1/IQ70 

1” 

1 1/4” 

1 3/8” 

1 3/4” 

2 3/8” 

2 3/4” 

2 3/4” 


Class NPS 


600 

2” 

21/2” 

3” 

4” 

6” 

8” 

10” 

12” 

14” 

!6” 

18” 

20” 

24” 

17 

18 

18 

23 

27.5 

35.5 

43.5 

52 

44.5 

51.5 

59 

63.75 

49.5 

F10 

F10 

F10 

F10 

F14 

F14 

F14/F16 

F14/F16 

F16/F25 

F25 

F25 

F25/F30 

F25/F30 

GK10.2/IB2 

GK10.2/IB2 

GK10.2/IB2 

GK10.2/IB2 

GK14.2/IB5 

GK14.2/IB5 

GK14.6/IB5 

GK14.6/IB5 

GK16.2/IB7 

GK25.2/IB9 

GK25.2/IB9 

GK25.2/IB9 

GK30.2/IB11 

SA07.1/IQ7 

SA07.5/IQ13 

SA10.1/IQ13 

SA10.1/IQ13 

SA14.1/IQ30 

SA14.1/IQ30 

SA14.5/IQ30 

SA14.5/IQ30 

SA16.1/IQ40 

SA25./IQ40 

SA25./IQ70 

SA25./IQ90 

SA30.1/IQ90 

3/4” 

1” 

1” 

1 1/8” 

1 5/8” 

1 5/8” 

2” 

2” 

2 3/8” 

2 3/8” 

2 3/4” 

2 3/4” 

3” 


Class NPS 


900 

3” 

4” 

6” 

8” 

10” 

12” 

20 

25 

28 

36 

31 

39 

F14 

F14 

F14 

F16 

F25 

F25 

GK14.2/IB5 

GK14.2/IB5 

GK14.6/IB5 

GK16.2/IB7 

GK25.2/IB9 

GK25.2/IB9 

SA14.1/IQ14 

SA14.1/IQ16 

SA14.5/IQ30 

SA16.1/IQ30 

SA25.1/IQ40 

SA25.1/IQ40 

1 1/8” 

1 1/4” 

1 5/8” 

2” 

2 3/8” 

2 3/8” 



SUB PRODUCT 

PRESSURE SEAL


PRESSURE SEAL 

PS Class 900, 1500, 2500 



API STD. 600 ; ASME B16.34 


ASME B16.10 

End Flange : 

2 in - 24 in ASME B16.5 

Welding End : 

ASME B16.25 

CLASS 


AG09F-PS Raised Face Flange End 

900 AG09R-PS Ring-Type Joint Flange End 

AG09B-PS Buttwelding End 







Operation : 

CLASS 

Size 

Standard Option 


900 10 in - 14 in Handwheel Bevel Gear 









PART No. 

PART NAME 

MATERIALS 

H 

25 

24 

18 17 

16 

15 

L 

W 

22 23 

21 

20 

19 

13 14 

12 

9 10 11 

8 

6 7 

5 

4 

3 

2 

1 

1 

2 

3 

BODY 

SEAT RING 


FLEXIBLE WEDGE 

WEDGE SEATING SURFACE 

STEM 

STUFFING BOX 

SEALING RING 

4 

5 

6 

7 PRESSURE RING 


ASTM A105 

HARD FACED 


HARD FACED 

ASTM A182 Gr. F6 


ASTM A276 Type 304 


8 

SEGMENT RING 


9 

SUPPORT PLATE 


10 

BOX-PLATE BOLT 

ASTM A193 Gr. B7 

11 

BOX-PLATE NUT 

ASTM A194 Gr. 2H 

12 

YOKE 


13 



14 

BOX-PLATE NUT 


15 

PACKING PLATE ASTM A276 Type 410 

16 

LANTERN RING 


17 

PACKING 1 

STAINLESS STEEL + BRAIDED GRAPHITE 

18 

PACKING 2 

FLEXIBLE GRAPHITE 

19 

GLAND FLANGE SEAT 


20 

GLAND 


21 

GLAND FLANGE 

CARBON STEEL 

22 

GLAND EYEBOLT 


23 

GLAND EYEBOLT NUT 


24 YOKE GEAR STUD 


25 

STEM NUT 

ASTM A439 Gr. D2 




PS Class 900, 1500, 2500 


NOMINAL 

SIZE 

L 

RF 


L1 

RTJ 

L2 

BW 

Height 

H 

(Open) 

Handwheel 

W 

Weight 

Wt 

in 

3 

4 

6 

8 

10 

12 

14 

16 

18 

20 

24 

mm 

80 

100 

150 

200 

250 

300 

350 

400 

450 

500 

600 

in mm in mm in mm in mm in mm Kgs 

15,00 381 15,12 384 12,00 305 22,99 584 14,0 355 95 

18,00 457 18,12 460 14,00 356 27,99 711 14,0 355 130 

24,00 610 24,12 613 20,00 508 33,98 863 24,0 609 280 

29,00 737 29,12 740 26,00 660 40,00 1016 24,0 609 460 

33,00 838 33,12 841 31,00 787 46,50 1181 28,0 711 820 

38,00 965 38,12 968 36,00 914 51,97 1320 28,0 711 1150 

40,50 1029 40,88 1038 39,00 991 61,73 1568 34,0 863 1500 

44,50 1130 44,88 1140 43,00 1092 85,00 2159 GO GO 2100 

48,00 1219 48,50 1232 48,00 1219 93,74 2381 GO GO 2750 

52,00 1321 52,50 1334 52,00 1321 96,50 2451 GO GO 3400 

61,00 1549 61,75 1568 61,00 1549 116,97 2971 GO GO 4400 


NOMINAL 

SIZE 

L 

RF 


L1 

RTJ 

L2 

BW 

Height 

H 

(Open) 

Handwheel 

W 

Weight 

Wt 

in mm 

2 50 

3 80 

4 100 

6 150 

8 200 

10 250 

12 300 

14 350 

16 400 

18 450 

20 500 

24 600 


14,50 368 14,62 371 8,5 216 21,8 554 11,8 300 60 

18,50 470 18,62 473 12,00 305 30,2 767 17,7 450 128 

21,50 546 21,62 549 16,00 406 34,4 875 22,0 560 182 

27,75 705 28,00 711 22,00 559 43,1 1094 12,0 305 394 

32,75 832 33,13 842 28,00 711 54,0 1372 GO GO 795 

39,00 991 39,38 1000 34,00 864 65,2 1655 GO GO 1370 

44,50 1130 45,12 1146 39,00 991 72,2 1834 GO GO 2120 

49,50 1257 50,25 1276 42,00 1067 84,6 2150 GO GO 2800 

54,50 1384 55,38 1407 47,00 1194 89,0 2260 GO GO 3780 

60,50 1537 61,38 1559 53,00 1346 90,0 2285 GO GO 4010 

65,50 1664 66,38 1686 58,00 1473 94,0 2387 GO GO 4950 

76,50 1943 77,62 1972 76,50 1943 110,0 2794 GO GO 7650 


NOMINAL 

SIZE 

L 

RF 


L1 

RTJ 

L2 

BW 

Height 

H 

(Open) 

Handwheel 

W 

Weight 

Wt 

in 

2 

3 

4 

6 

8 

10 

12 

14 

16 

mm 

50 

80 

100 

150 

200 

250 

300 

350 

400 


17,75 451 17,87 454 11,00 279 24,0 610 19,7 500 88 

22,75 578 23,00 584 14,50 368 29,6 753 19,7 500 135 

26,50 673 26,88 683 18,00 457 33,5 850 19,7 500 215 

36,00 914 36,50 927 24,00 610 49,4 1254 GO GO 550 

40,25 1022 40,87 1038 30,00 762 54,1 1374 GO GO 900 

50,00 1270 50,88 1292 36,00 914 66,3 1685 GO GO 1600 

56,00 1422 56,88 1445 41,00 1041 69,0 1752 GO GO 2300 

- - - - 44,00 1118 74,0 1879 GO GO 3200 

- - - - 49,00 1245 78,0 1981 GO GO 4100 


Pressure-temperature ratings 

OF MAXIMUM ALLOWABLE WORKING PRESSURE 

ACCORDING TO ANSI / ASME B 16.34 

PS Class 900, 1500, 2500 

. 

Maximum allowable working pressure ( PSIG) 

WORKING 

TEMPERATURE 

F 

-20 to 100 

C 

-29 to 38 

CLASS 

150 

CLASS 

300 

CLASS 

600 

CLASS 

900 

CLASS 

1500 

WCB LCC Wc6 C5 C12 WCB LCC Wc6 C5 C12 WCB LCC Wc6 C5 C12 WCB WCB 

(a) (b) ( c,d) (d) (d) (a) (b) (c,d) (d) (d) (a) (b) (c,d) (d) (d) (a) (a) 

285 290 290 290 290 740 750 750 750 750 1480 1500 1500 1500 1500 2220 3705 

200 

93 

260 

260 

260 

260 

675 

750 

710 

7560 

750 

750 

1350 

1500 

1425 

1500 

1500 

2025 

3375 

300 

149 

230 

230 

230 

230 

230 

655 

730 

675 

730 

730 

1315 

1455 

1345 

1455 

1455 

1970 

3280 

400 

204 

200 

200 

200 

200 

200 

635 

705 

660 

705 

705 

1270 

1410 

1315 

1410 

1410 

1900 

3170 

500 

260 

170 

170 

170 

170 

170 

600 

665 

640 

665 

665 

1200 

1330 

1285 

1330 

1330 

1795 

2995 

600 

416 

140 

140 

140 

140 

140 

550 

605 

605 

605 

605 

1095 

1210 

1210 

1210 

1210 

1640 

2735 

650 

343 

125 

125 

125 

125 

125 

535 

590 

590 

590 

590 

1075 

1175 

1175 

1175 

1175 

1610 

2685 

700 

371 

110 

110 

110 

110 

110 

535 

570 

570 

570 

570 

1065 

1135 

1135 

1135 

1135 

1600 

2665 

750 

399 

95 

95 

95 

95 

95 

505 

505 

530 

530 

530 

1010 

1010 

1065 

1065 

1065 

1520 

2520 

800 

427 

80 

80 

80 

80 

80 

410 

410 

510 

500 

510 

825 

825 

1015 

995 

1015 

1235 

2060 

850 

454 

65 

65 

65 

65 

65 

270 

270 

485 

440 

485 

535 

535 

975 

880 

975 

805 

1340 

900 

482 

50 

50 

50 

50 

50 

170 

170 

450 

355 

450 

345 

345 

900 

705 

900 

515 

860 

950 

510 

35 

35 

35 

35 

35 

105 

105 

380 

260 

370 

205 

205 

755 

520 

740 

310 

515 

1000 

538 

20 

20 

20 

20 

20 

50 

50 

225 

190 

290 

105 

105 

445 

385 

585 

155 

260 

1050 

566 

- 

- 

20(e) 

20(e) 

20(e) 

- 

- 

140 

140 

190 

- 

- 

275 

280 

380 

- 

- 

1100 

593 

- 

- 

20(e) 

20(e) 

20(e) 

- 

- 

95 

105 

115 

- 

- 

190 

205 

225 

- 

- 

1150 

621 

- 

- 

20(e) 

20(e) 

20(e) 

- 

- 

50 

70 

75 

- 

- 

105 

140 

150 

- 

- 

1200 

649 

- 

- 

15(e) 

20(e) 

20(e) 

- 

- 

35 

45 

50 

- 

- 

70 

90 

105 

- 

- 

Hydrostatic Shell 

Test Pressure 

450 

1125 

2225 

2250 

3350 

5575 

Valve Closure 

Liquid 

315 

320 

815 

825 

1630 

1650 

2450 

4080 

Test Pressure 

Air 

80 

80 

80 

80 

80 

(a) 

(b) 

© 

(d) 

(e) 

Notes 

Permissible, but not recomended for prolonged exposure above 800 F. After long-term exposure above this temperature, tyhe carbide 

phase of carbon steel may be converted to graphite. 

Not to be used for temperatures above 700 F 

Not to be used for temperatures above 1 100 F 

Use normalized and tempered material only. 

Only for valves with butt-weld ends. Flanged ends are limited by temperature 1 000 F 

1 psig = 0.006895 


HOW TO ORDER ALFA CASTED GATE VALVES 

SIZE 

FIG. No. 

08" 

A 

C 

06 

F 

L 

- 

WCB 

- 1C N 

Valve Size 

Brand 

Valve 

Identi - 

fication 

Pressure Rating 

Connection Type 

Trim - 

Body Material 

- 

Disc 

Type 

Modification 

DESCRIPTION : 8 in ALFA CHECK VALVE, ANSI CLASS 600, RAISED FACE, TRIM MATERIAL : 13% Cr. + HARDFACED, BODY MATERIAL : 

A216 Gr.WCB, SWING TYPE, NACE MATERIAL 

0Q 

0H 

0T 

01 

1H 

02 

2H 

03 

04 

~ 

36 

VALVE 




1/4" 

1/2" 

3/4" 

1" 

1-1/2" 

2" 

2-1/2" 

3" 

4" 

~ 

36" 

ALFA 

G 

GATE 

0Q 

01 

03 

04 

06 

09 

15 

25 

J1 

J2 

J4 

J6 









JIS 10K 

JIS 20K 

JIS 40K 

JIS 63K 

P 

F 

R 

B 

S 

T 

C 

A 

FLAT FACE 

RAISED FACE 

RING JOINT 

BUTT WELD 

SOCKET WELD 

SCREWED 

COMBINATION 

SPECIAL 

TRIM 

BODY MATERIAL 

API No. 

NOMINAL TRIM 

ALFA 

CODE 

1 

F6 

A 

2 

304 

B 

3 

F310 

C 

5 HARDFACED D 

7 F6 and HARD F6 E 

8 F6 and HARDFACED L 

9 

MONEL 

M 

10 

316 

R 



13 

ALLOY 20 

U 


- NACE 

X 

- SPECIAL 

Y 

WEDGE/DISC 

SEATING 

13 Cr 

18 Cr - 8Ni 

25Cr - 20Ni 


13 Cr 

13 Cr 

Ni - Cu Alloy 

18 Cr - 8Ni - 2Mo 

Ni - Cu Alloy 

18 Cr - 8Ni - 2Mo 

19 Cr - 29Ni 

19 Cr - 29Ni 

Note 

Special 

SEAT SURFACE 

STEM/BUSHING 

HINGE PIN 

WCB 

C5 

WC6 

WC9 

C12 

LCB 

LCC 

13 Cr 

13 Cr 

LC3 

18 Cr - 8Ni 18 Cr - 8Ni CF8 

25Cr - 20Ni 25Cr - 20Ni CF8M 


CF3 







19 Cr - 29Ni 19 Cr - 29Ni 4A 


Note 

Special 

Note 

Special 

B62 

B14 

CI1 

DI3 

DI5 

SP 





















ASTM B148 Gr. C95600 


ASTM A395 

ASTM A536 

SPECIAL ALLOY 


HW 

GO 

CW 

HO 

PO 

MO 

Hand Wheel 

Gear Operated 

Chain Wheel 




F 

R 

S 

Full Port 

Reduced Port 

Special port 

1G 

2G 

3G 

4G 

5G 


Solid Wedge 

Split Wedge 

Slab Gate 

Expanding Gate 

B 

W 

C 

D 

N 

P 

R 

T 

N 

PS 

EB 

CY 

TC 

YC 

YL 



: By-pass 

: Drain 








: Cryogenic 


: Y - Check 

: Y - Globe 


ALFATM 

SWING CHECK VALVE 


Swing Check Valve 

Application 

Steel flanged or butt-weld end swing 

check valve are pipeline valves 

automatically preventing reverse flow 

of the following liquids : 

- non-corrosive liquids, water, steam, 

oil, crude oil and crude oil products 

- operating parameters meet 

requirements of ASME/ANSI B16.34 

standard 

- application for other operating 

liquids must be resolved with MSA 

in advance. 

- ambient temperature from -13 oF to 

+ 122 oF (-25 oC to + 50 oC). 

Technical description 

Steel flanged or butt-weld end swing 

check valves, with full bore, consist of 

a body, bonnet, disc and arm. Seat is 

screwes or welded into body. Disc fits 

on seat sealing surfaces. the disc is 

placed in an arm swinging on a pin in 

a special suspension. Connecting 

flanges are integral part of a body for 

flanged design. 

Butt-weld ends are made according to 

ANSI B 16.25. 


Face-to-face dimensions and other 

dimensions comply with 

ANSI B 16.10 standard, connecting 

dimensions of flanges comply with 

ANSI B 16.5. Butt-weld ends 

dimensions - ANSI B 16.25. 

Testing 

Swing check valves are pressure 

tested according to API 598 standard 

for: 

a/ strength and tightness 

b/ closure tightness by low pressure 

(based on cutomer’s requirement) 

c/closure tightness by high pressure 

Manufacturing program 

Class 

NPS(”) 

Loss factor 

150 

2 

2,5 

3 

4 

6 

8 

10 

12 

14 

16 

18 

20 

24 

Loss factor for fully open swing check 

valve is 0,35. 

300 

600 

2 

2 

2,5 

2,5 

3 

3 

4 

4 

6 

6 

8 

8 

10 

10 

12 

12 

14 

14 

16 

16 

18 

20 

24 


Design 

Installation 

Swing check valves can be installed 

either horizontally or vertically, if 

installed vertically, disc must be in 

upper position and flow direction must 

be upwards (under disc). 


API 600 Standard applies for ordering. 

It is necessary to specify in an order: 

type number 

nominal diameter 

pressure class 

design - connection 

wedge type 

control mode 

body and bonnet material 

trim material 

operating parameters 

acceptance tests 

accompanying documentation 

Sealing materials 

Position 

Name name 

Class Body material 

WCB LCC WC6 C5 C12 

10 Cover gasket 

150, 300 

600 

Spiral wound graphite 

RTJ rings 

solf low carbon steel AISI 321 

16 Plug gasket 150-600 

AISI 316, AISI 321 

TRIM - materials according to API 600 

Position 

Name name 

3a disc sealing surface 

5a seat sealing surface 

6 

pin 

TRIM Nr 

1 5 8 11 12 

13 Cr overlay 

13 Cr overlay 

A 182 F6a 

Stellite 6 

Stellite 6 

A 182 F6a 

13 Cr overlay 

Stellite 6 

A 182 F6a 

Monel overlay 

Stellite 6 

Monel 

316 overlay 

Stellite 6 

A 182 F316 

Standard material specification (*) 

Position 

1 

2 

2 

4 

5 

8 

11 

12 

13 

14 

18,19 

17 

20 

Name 

Trim Nr. 

Body 

Closure 

Disc - variants 

Arm 

Seat 

Nuts 

Bolt - variants 

Nuts 

Plug - variants 

Rivet 

Arm sleeve 

Name plate 

Bolt 

WCB LCC WC6 C5 C12 

1, 5, 8, 11, 12 12 5 5 5 

A 215 WCB 

A 216 WCB 

A 276 410T 

A216 WCB + overlay 

A 182 F 316 

A 105 + overlay 

A 216 WCB 

A 106 B + overlay 

A 193 B7 

A 193 B7M 

A 194 2H 

A 194 2HM 

AISI 1035 

A 276 430 

A 352 LCC 

A 352 LCC 

A 182 F 316 

A 352 LCC + overlay 

A 352 LCC 

A 350 Lf2 mod.+ overlay 

A 329 L7M 

A 194 7M 

A 276 430 

A 217 WC6 

A 217 WC6 

A 182 F9 + overlay 

A 217 WC6 + overlay 

A 217 WC6 


AISI 316 

A 193 B7 

A 194 2H 

A 276 430 

AISI 304 

A 217 C5 

A 217 C5 


A 217 C5 + overlay 

A 217 C5 


A 193 B7 

A 194 2H 

A 276 430 

A 217 C12 

A 217 C12 


A 217 C12 + overlay 

A 217 C12 


A 193 B7 

A 194 2H 

A 276 430 

0.5% C - 15% Cr ( CSN 41 7029 ) 

AISI 304 

carbon steel A 105 

(*) - body material design also according to customer’s requirement (this material variant afetr consultation with the manufacturer) 


CAST STEEL 



ANSI CLASS 150, 300, 600, 900, 1500 

H 

11 

10 

9 

8 

7 

16 

13 

14 

15 

12 



ASME B16.34 ; BS 1868 ; API Spec. 6D 


ASME B16.10 

End Flange : 

2 in - 24 in ASME B16.5 

26 in - 36 in ASME B16.47 Series A 

or MSS SP-44 

Welding End : 

ASME B16.25 

D 

FLOW 

PART 

No. 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

1 2 3 7 4 5 6 

L 


PART NAME 

BODY 

SEAT RING 


GATE / DISC 

DISC SEATING SURFACE 

DISC WASHER 

DISC NUT PIN 

DISC NUT 

HINGE 

HINGE PIN 

BEARING BRACKET 

SPRING WASHER 

HEX BOLT 

GASKET 

CAP BOLTS 

CAP BOLT NUTS 

CAP 

EYE BOLT 

CLASS 

150 

300 

600 

900 

1500 

AC01F 

AC01R 

AC01B 

AC03F 

AC03R 

AC03B 

AC06F 

AC06R 

AC06B 

AC09F 

AC09R 

AC09B 

AC15F 

AC15R 

AC15B 

















MATERIALS 


A216 A352 A217 A351 

WCB 

LCC 

WC6 

C5 

CF8M 


A105 ; LF2 ; 304 SS ; 316 SS 




13 % Cr ; 304 SS ; 316 SS 

13 % Cr ; 304 SS ; 316 SS 

13 % Cr ; 304 SS ; 316 SS 


STAINLESS STEEL 




CORRUGATED SOFT IRON ; SPIRAL WOUND 

A193-B7 A320-L7M A193-B7 / A193-B16 A193-B8 

A194-2H A194-7M A194-4 

A194-8 


ASTM A181 


CAST STEEL 


DIMENSIONS AND WEIGHTS 

ANSI CLASS 150, 300 


NOMINAL 

SIZE 


L / L2 

RF / BW 

L1 

RTJ 

Flange OD 

D 

Height 

H 

Weight 

Wt 


2 50 8,00 203 8,50 216 6,00 152,4 6,50 165,1 19 

2 1/2 65 8,50 216 9,00 229 7,00 177,8 7,00 177,8 26 

3 80 9,50 241 10,00 254 7,50 190,5 7,30 185,4 29 

4 100 11,50 292 12,00 305 9,00 228,6 8,50 215,9 48 

5 125 13,00 330 13,50 343 10,00 254,0 9,06 230,1 69 

6 150 14,00 356 14,50 368 11,00 279,4 10,50 266,7 77 

8 200 19,50 495 20,00 508 13,50 342,9 12,50 317,5 133 

10 250 24,50 622 25,00 635 16,00 406,4 14,50 368,3 266 

12 300 27,50 699 28,00 711 19,00 482,6 16,00 406,4 347 

14 350 31,00 787 31,50 800 21,00 533,4 17,00 431,8 451 

16 400 34,00 864 34,50 876 23,50 596,9 19,00 482,6 556 

18 450 38,50 978 39,00 991 25,00 635,0 23,60 599,4 784 

20 500 38,50 978 39,00 991 27,50 698,5 26,00 660,4 835 

24 600 51,00 1295 51,50 1308 32,00 812,8 29,10 739,1 1580 

30 750 60,00 1524 60,50 1537 38,75 984,3 38,60 980,4 2120 

36 900 77,00 1956 77,50 1969 46,00 1168,4 40,80 1036,3 3344 


NOMINAL 

SIZE 


L / L2 

RF / BW 

L1 

RTJ 

Flange OD 

D 

Height 

H 

Weight 

Wt 


2 50 10,50 267 11,12 282 6,50 165,1 7,00 177,8 21 

2 1/2 65 11,50 292 12,12 308 7,50 190,5 7,50 190,5 32 

3 80 12,50 318 13,12 333 8,25 209,6 8,30 210,8 43 

4 100 14,00 356 14,62 371 10,00 254,0 9,70 246,4 61 

5 125 15,75 400 16,37 416 11,00 279,4 12,00 304,8 84 

6 150 17,50 445 18,12 460 12,50 317,5 12,50 317,5 131 

8 200 21,00 533 21,62 549 15,00 381,0 14,00 355,6 213 

10 250 24,50 622 25,12 638 17,50 444,5 15,50 393,7 384 

12 300 28,00 711 28,62 727 20,50 520,7 19,00 482,6 449 

14 350 33,00 838 33,62 854 23,00 584,2 21,00 533,4 680 

16 400 34,00 864 34,62 879 25,50 647,7 23,00 584,2 840 

18 450 38,50 978 39,12 994 28,00 711,2 23,30 591,8 1025 

20 500 40,00 1016 40,75 1035 30,50 774,7 24,20 614,7 1320 

24 600 53,00 1346 53,88 1369 36,00 914,4 27,90 708,7 1960 

30 750 62,75 1594 63,75 1619 43,00 1092,2 34,00 863,6 3270 


CAST STEEL 




ANSI CLASS 600, 900, 1500 


NOMINAL 

SIZE 


L / L2 

RF / BW 

L1 

RTJ 

Flange OD 

D 

Height 

H 

Weight 

Wt 


2 50 11,50 292 11,62 295 6,50 165,1 7,38 187,5 52 

2 1/2 65 13,00 330 13,12 333 7,50 190,5 8,50 215,9 63 

3 80 14,00 356 14,12 359 8,25 209,6 10,95 278,1 75 

4 100 17,00 432 17,12 435 10,75 273,1 12,44 316,0 122 

6 150 22,00 559 22,12 562 14,00 355,6 15,75 400,1 227 

8 200 26,00 660 26,12 663 16,50 419,1 17,00 431,8 346 

10 250 31,00 787 31,12 790 20,00 508,0 19,00 482,6 628 

12 300 33,00 838 33,12 841 22,00 558,8 20,00 508,0 796 

14 350 35,00 889 35,12 892 23,75 603,3 22,50 571,5 892 

16 400 39,00 991 39,12 994 27,00 685,8 26,00 660,4 1200 

18 450 43,00 1092 43,12 1095 29,25 743,0 28,75 730,3 1600 

20 500 47,00 1194 47,25 1200 32,00 812,8 31,50 800,1 2420 

24 600 55,00 1397 55,38 1407 37,00 939,8 35,50 901,7 3150 


NOMINAL 

SIZE 


L / L2 

RF / BW 

L1 

RTJ 

Flange OD 

D 

Height 

H 

Weight 

Wt 


2 50 14,50 368 14,62 371 8,50 215,9 9,88 251,0 69 

2 1/2 65 16,50 419 16,62 422 9,62 244,3 10,60 269,2 93 

3 80 15,00 381 15,12 384 9,50 241,3 9,13 231,9 95 

4 100 18,00 457 18,12 460 11,50 292,1 12,30 312,4 145 

6 150 24,00 610 24,12 613 15,00 381,0 14,30 363,2 310 

8 200 29,00 737 29,12 740 18,50 469,9 17,00 431,8 500 

10 250 33,00 838 33,12 841 21,50 546,1 18,90 480,1 772 

12 300 38,00 965 38,12 968 24,00 609,6 22,00 558,8 1080 

14 350 40,50 1029 40,88 1038 25,25 641,4 24,80 629,9 1500 

16 400 44,50 1130 44,88 1140 27,75 704,9 27,60 701,0 2130 


NOMINAL 

SIZE 


L / L2 

RF / BW 

L1 

RTJ 

Flange OD 

D 

Height 

H 

Weight 

Wt 


2 50 14,50 368 14,62 371 8,50 215,9 12,25 311,2 70 

2 1/2 65 16,50 419 16,62 422 9,62 244,3 12,25 311,2 94 

3 80 18,50 470 18,62 473 10,50 266,7 13,00 330,2 140 

4 100 21,50 546 21,62 549 12,25 311,2 14,00 355,6 232 

6 150 27,75 705 28,00 711 15,50 393,7 15,75 400,1 490 

8 200 32,75 832 33,13 842 19,00 482,6 20,88 530,4 990 

10 250 39,00 991 39,38 1000 23,00 584,2 22,06 560,3 1490 

12 300 44,50 1130 45,12 1146 26,50 673,1 25,63 651,0 1970 

14 350 49,50 1257 50,25 1276 29,50 749,3 30,90 784,9 2450 

16 400 54,50 1384 55,38 1407 32,50 825,5 36,61 929,9 3205 


CAST STEEL SWING CHECK 

PRESSURE SEAL 

PS ANSI CLASS 1500, 2500 

14 15 

16 

H 

13 

12 

11 

10 

9 

8 

7 

6 

5 

4 


ASME B16.34 


ASME B16.10 

End Flange : 

2 in - 16 in ASME B16.5 

Welding End : 

ASME B16.25 


D 

L 

3 

2 

1 

CLASS 

1500 

2500 

AC15F-PS 

AC15R-PS 

AC15B-PS 

AC25F-PS 

AC25R-PS 

AC25B-PS 









PART No. 

PART NAME 

MATERIALS 

1 

BODY 


2 

3 

SEAT RING 

DISC 

ASTM A105 




HARD FACED 

HARD FACED 

4 

DISC WASHER 


5 

6 

DISC NUT PIN 

DISC NUT 



7 HINGE 


8 

HINGE PIN 


9 

10 

COVER 

SEALING RING 



11 

PRESSURE RING 


12 

SEGMENT RING ASTM A276 Type 410 

13 

COVER CLAMP 


14 

COVER CLAMP BOLTS 


15 COVER CLAMP NUTS ASTM A194 Gr. 2H 

16 

EYE BOLT 

ASTM A181 


CAST STEEL SWING CHECK 

PRESSURE SEAL 


PS ANSI CLASS 1500, 2500 


NOMINAL 

SIZE 

L 

RF 


L1 

RTJ 

L2 

BW 

Flange OD 

D 

Height 

H 

Weight 

Wt 


2 50 14,50 368 14,62 371 8,50 216 8,50 215,9 10,43 265 60 

2 1/2 65 16,50 419 16,62 422 10,00 254 9,62 244,3 10,43 265 75 

3 80 18,50 470 18,62 473 12,00 305 10,50 266,7 10,63 270 78 

4 100 21,50 546 21,62 549 16,00 406 12,25 311,2 14,57 370 130 

6 150 27,75 705 28,00 711 22,00 559 15,50 393,7 18,70 475 334 

8 200 32,75 832 33,13 842 28,00 711 19,00 482,6 22,44 570 590 

10 250 39,00 991 39,38 1000 34,00 864 23,00 584,2 24,80 630 1025 

12 300 44,50 1130 45,12 1146 39,00 991 26,50 673,1 30,31 770 1530 

14 350 49,50 1257 50,25 1276 42,00 1067 29,50 749,3 31,30 795 1854 

16 400 54,50 1384 55,38 1407 47,00 1194 32,50 825,5 32,44 824 2060 


NOMINAL 

SIZE 

L 

RF 


L1 

RTJ 

L2 

BW 

Flange OD 

D 

Height 

H 

Weight 

Wt 


2 50 17,75 451 17,87 454 11,00 279 9,25 235,0 11,02 280 88 

2 1/2 65 20,00 508 20,25 514 13,00 330 10,50 266,7 12,01 305 90 

3 80 22,75 578 23,00 584 14,50 368 12,00 304,8 12,20 310 95 

4 100 26,50 673 26,88 683 18,00 457 14,00 355,6 14,57 370 160 

6 150 36,00 914 36,50 927 24,00 610 19,00 482,6 19,09 485 385 

8 200 40,25 1022 40,87 1038 30,00 762 21,75 552,5 21,42 544 640 

10 250 50,00 1270 50,88 1292 36,00 914 26,50 673,1 27,95 710 1200 

12 300 56,00 1422 56,88 1445 41,00 1041 30,00 762,0 31,50 800 1725 


HOW TO ORDER ALFA CASTED CHECK VALVES 

SIZE 

FIG. No. 

08" 

A 

C 

06 

F 

L 

- 

WCB 

- 1C N 

Valve Size 

Brand 

Valve 

Identi - 

fication 



Trim - 

Body Material 

- 

Disc 

Type 

Modification 



0Q 

0H 

0T 

01 

1H 

02 

2H 

03 

04 

~ 

36 

VALVE 




1/4" 

1/2" 

3/4" 

1" 

1-1/2" 

2" 

2-1/2" 

3" 

4" 

~ 

36" 

ALFA 

C 

CHECK 

0Q 

01 

03 

04 

06 

09 

15 

25 

J1 

J2 

J4 

J6 









JIS 10K 

JIS 20K 

JIS 40K 

JIS 63K 

P 

F 

R 

B 

S 

T 

C 

A 

FLAT FACE 

RAISED FACE 

RING JOINT 

BUTT WELD 

SOCKET WELD 

SCREWED 

COMBINATION 

SPECIAL 

TRIM 

BODY MATERIAL 

API No. 

NOMINAL TRIM 

ALFA 

CODE 

1 

F6 

A 

2 

304 

B 

3 

F310 

C 

5 HARDFACED D 



9 

MONEL 

M 

10 

316 

R 



13 

ALLOY 20 

U 


- NACE 

X 

- SPECIAL 

Y 

WEDGE/DISC 

SEATING 

13 Cr 

18 Cr - 8Ni 

25Cr - 20Ni 


13 Cr 

13 Cr 

Ni - Cu Alloy 

18 Cr - 8Ni - 2Mo 

Ni - Cu Alloy 

18 Cr - 8Ni - 2Mo 

19 Cr - 29Ni 

19 Cr - 29Ni 

Note 

Special 

SEAT SURFACE 

STEM/BUSHING 

HINGE PIN 

WCB 

C5 

WC6 

WC9 

C12 

LCB 

LCC 

13 Cr 

13 Cr 

LC3 

18 Cr - 8Ni 18 Cr - 8Ni CF8 

25Cr - 20Ni 25Cr - 20Ni CF8M 


CF3 







19 Cr - 29Ni 19 Cr - 29Ni 4A 


Note 

Special 

Note 

Special 

B62 

B14 

CI1 

DI3 

DI5 

SP 





















ASTM B148 Gr. C95600 


ASTM A395 

ASTM A536 

SPECIAL ALLOY 

DISC TYPE 

MODIFICATION 

1C 

Swing Type 

B 

Bolted Cap 

W 

Welded Cap 

2C 

Ball Type 

C 

By-pass 

3C 

Ball Spring 

D 

Drain 

T 

Teflon Seating Surface 

4C 

Piston Type 

N 

NACE Standard 

PS 

Pressure Seal 

5C 


CY 

Cryogenic 

YC 

Y - Check 


ALFATM 

GLOBE VALVE 


DESIGN FEATURES GLOBE VALVES 

Cast Steel Globe Valves Class 150, 300 

Cast Steel Globe Valves with Rising HandWheel and Stem 

Impactor Handwheel, the mechanism is based on 

transmitting the momentum generated by the mass of the 

handwheel through the impact/ impulse generated during 

the snap closure action of the handwheel. this type of 

handwheel is used when a standard handwheel cannot 

create enough closing force to efffect a seal. 

Stem Nut replaceable in 

the line. 

Revolving rising stem with 

precision ACME thread. 

Stem packing is designed for 

optimum control of fugitive 

emissions leakage to the 

atmosphere. the ultra low 

emission leakage rate is assured 

by the fine finish in the 

stem, the reduced diametrical 

clearences and the stem 

straightness control. 

Body to bonnet joint designed 

to aplly a uniform load to the 

gasket to assure a leak proof 

seal. 

Backeat designed to relieve 

back pressure on the stem 

packing when fully seated. 

Replacing stem packing under 

pressure is not recommended. 

Conical Disc, integrally guided to 

assure true aliagnment between 

disc and valve body. The loose 

disc design allows the disc and 

seat ring sealing surfaces seat 

correctly without damage. 

Stellited Seat Ring, providind 

increased resistance to ware, 

abrasion and erosion 

of the sealing surface. 

Handwheel Nut 

Handwheel Washer 

Handwheel 

Stem Nut 

Set Screw 

Stem 

Eyebolt 

Eyebolt Nut 

Gland Plate 

Packing Bushing 

Eyebolt Pin 

Bonnet Stud 

Bonnet Stud Nut 

Bonnet 

Stem Packing 

Bonnet gasket 

Body 

Bonnet bushing 

Disc Locknut 

Disc 

Disc Washer 

Seat Ring 

Application 

Globe valves are used for : non-corrosive 

liquids, water, saturated steam, oil, air, 

crude oil and crude oil products. ALFA-VALVE 

cast svalves are used as shut-off 

valves. Operating parameters are in 

accordance with ASME/ANSI B16.34 standard. 

Applications for other working conditions must 

be discussed with the manufacturer. 


ALFA-VALVE globe valve design is in accordance 

with API 600. Stem has outside screw and it 

is either rising, rotary or rising, non-rotary. 

Standard stem screw is according to ANSI B 1.5, 

ACME type. Stems and stuffing box are 

according to API 600. Stem nut can be seated in 

the following way : fixed seating or on 

antifriction bearings. 

- Bonnet joint is done by bonnet bolts and nuts 

- Globe valves have cast plug. the plug moves 

perpendicularly to a sealing seat. 

- Seats are screwed and secured by a sealing 

weldaround port circumference. Minimum 

overlay thickness is 1,6 mm, hardness depends 

on the type of used overlay. 

- Control is done by impact handwheel or in 

combination with gear box. 

- With regands to environment and price of 

transported media, there is emphasis for stem 

packings to prevent fugitive emissions. This was 

reached by used of new types and shapes of 

nonasbestos packings (braided and die formed 

graphite rings) and optimisation of stuffing box 

dimensions parameters (dimensions, tolerances, 

clearances, machining and geometry) according 

to MSS SP-120. The required loq fugitive 

emissions values are further reached by careful 

assembly according to special instructions. 

ALFA-VALVES Globe valves packings meet strict 

requirements of Clean Air Act Amendment 

regulation from 1990. 

- Standard globe valves are manufactured from 

materials according to ASTM A 216 WCB, with 

Trim 8 according to API 600. Other material 

variants are possible. 

Seat ring is seal welded to 

provide a bubble tight joint... 


CAST STEEL GLOBE VALVE 


ANSI Class 150, 300, 600 



ASME B16.34 ; BS 1873 


ASME B16.10 

End Flange : 

2 in - 24 in ASME B16.5 

Welding End : 

ASME B16.25 

Operation : 

ALFA Figure No : 

CLASS 


CLASS 


150 

300 



18 in - 24 in Bevel Gear - 




150 

300 

AL01F 

AL01R 

AL01B 

AL03F 

AL03R 

AL03B 







600 




600 

AL06F 

AL06R 

AL06B 





PART 

No. 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

PART NAME 


DISC THRUST PLATE 

GASKET 


GLAND PACKING 

BONNET A216-WCB A352-LCC A217-WC6 

EYE BOLT PINS 

GLAND 

GLAND EYE BOLTS A193-B7 A320-L7 A193-B16 

YOKE SLEEVE 

HANDWHEEL 

MATERIALS 


A216 A352 A217 A351 


BODY A216-WCB A352-LCC A217-WC6 A217-C5 A351-CF8M 

SEAT RING 


A105 ; LF2 ; 304 SS ; 316 SS 


DISC A216-WCB A352-LCC A217-WC6 A217-C5 

DISC NUT 

STEM 


A194-2H 


13 % Cr ; 304 SS ; 316 SS 

13 % Cr ; 304 SS ; 316 SS 

13 % Cr ; 304 SS ; 316 SS ; 17-4 PH ; MONEL 

BONNET BOLTS A193-B7 A320-L7 A193-B7 

A194-4 A194-2H A194-4 A194-8 

13 % Cr ; 304 SS ; 316 SS 

BRAIDED GRAPHITE & DIE FORMED GRAPHITE RING 

13 % Cr ; 304 SS ; 316 SS 

13 % Cr ; 304 SS ; 316 SS 

GLAND FLANGE A216-WCB A352-LCC A217-WC6 A217-C5 A351-CF8M 

ASTM A439-D2C 


A193-B16 

CORRUGATED (150#) ; SPIRAL WOUND (150#~600#) ; 

RING JOINT-IRON (600#) 

A217-C5 

A351-CF8M 

A193-B8 

A351-CF8M 

A193-B8 

EYE BOLT NUTS A194-2H A194-7M A194-2H A194-8 

HANDWHEEL NUT CARBON STEEL 316 SS 

BACKING RING CARBON STEEL 316 SS 





ANSI Class 150, 300, 600 


NOMINAL 

SIZE 


L / L2 

RF / BW 

L1 

RTJ 

Flange OD 

D 

Height 

H 

(Open) 

Handwheel 

W 

Weight 

Wt 


2 50 8,00 203 8,50 216 6,00 152,4 16,1 410 7,9 200 22 

2 1/2 65 8,50 216 9,00 229 7,00 177,8 17,0 432 7,9 200 30 

3 80 9,50 241 10,00 254 7,50 190,5 17,7 450 9,8 250 42 

4 100 11,50 292 12,00 305 9,00 228,6 19,7 500 9,8 250 60 

5 125 14,00 356 14,50 368 10,00 254,0 21,2 538 11,8 300 77 

6 150 16,00 406 16,50 419 11,00 279,4 21,7 550 13,8 350 101 

8 200 19,50 495 20,00 508 13,50 342,9 24,4 620 15,7 400 161 

10 250 24,50 622 25,00 635 16,00 406,4 30,0 762 29,5 750 308 

12 300 27,50 699 28,00 711 19,00 482,6 33,9 860 29,5 750 410 

14 350 31,00 787 31,50 800 21,00 533,4 56,8 1442 GO GO 610 

16 400 36,00 914 36,50 927 23,50 596,9 64,0 1625 GO GO 880 

18 450 38,50 978 39,00 991 25,00 635,0 71,7 1820 GO GO 1150 

20 500 38,50 978 39,00 991 27,50 698,5 79,6 2023 GO GO 1650 

24 600 51,00 1295 51,50 1308 32,00 812,8 87,7 2228 GO GO 2200 


NOMINAL 

SIZE 


L / L2 

RF / BW 

L1 

RTJ 

Flange OD 

D 

Height 

H 

(Open) 

Handwheel 

W 

Weight 

Wt 


2 50 10,50 267 11,12 282 6,50 165,1 16,5 420 7,9 200 31 

2 1/2 65 11,50 292 12,12 308 7,50 190,5 17,1 435 7,9 200 40 

3 80 12,50 318 13,12 333 8,25 209,6 17,7 450 9,8 250 58 

4 100 14,00 356 14,62 371 10,00 254,0 20,5 520 9,8 250 86 

5 125 15,75 400 16,37 416 11,00 279,4 24,4 620 15,7 400 130 

6 150 17,50 445 18,12 460 12,50 317,5 25,6 650 15,7 400 150 

8 200 22,00 559 22,62 575 15,00 381,0 31,5 800 15,7 400 397 

10 250 24,50 622 25,12 638 17,50 444,5 40,9 1040 19,7 500 527 

12 300 28,00 711 28,62 727 20,50 520,7 44,9 1140 23,6 600 608 

14 350 33,00 838 33,62 854 23,00 584,2 50,6 1285 GO GO 830 

16 400 34,00 864 34,62 879 25,50 647,7 56,3 1430 GO GO 980 


NOMINAL 

SIZE 


L / L2 

RF / BW 

L1 

RTJ 

Flange OD 

D 

Height 

H 

(Open) 

Handwheel 

W 

Weight 

Wt 


2 50 11,50 292 11,62 295 6,50 165,1 16,7 425 9,8 250 57 

2 1/2 65 13,00 330 13,12 333 7,50 190,5 19,8 502 11,8 300 73 

3 80 14,00 356 14,12 359 8,25 209,6 20,5 521 13,8 350 89 

4 100 17,00 432 17,12 435 10,75 273,1 24,4 620 17,7 450 149 

6 150 22,00 559 22,12 562 14,00 355,6 34,9 886 22,0 560 417 

8 200 26,00 660 26,12 663 16,50 419,1 36,7 932 24,8 630 542 

10 250 31,00 787 31,12 790 20,00 508,0 42,5 1080 GO GO 700 

12 300 33,00 838 33,12 841 22,00 558,8 50,4 1280 GO GO 900 




ANSI Class 900, 1500 



ASME B16.34 ; BS 1873 


ASME B16.10 

End Flange : 

2 in - 12 in ASME B16.5 

Welding End : 

ASME B16.25 

CLASS 

900 

1500 

AL09F 

AL09R 

AL09B 

AL15F 

AL15R 

AL15B 








Operation : 






PART 

No. 

PART NAME 

1 

BODY 

SEAT RING 

2 


DISC 

3 


4 DISC THRUST PLATE 

5 

DISC NUT 

6 

STEM 

7 BONNET BOLTS NUTS 

8 BONNET BOLTS 

9 

GASKET 

10 BONNET BUSHING 

11 GLAND PACKING 

12 

BONNET 

13 EYE BOLT PINS 

14 

GLAND 

15 GLAND FLANGE 

16 GLAND EYE BOLTS 

17 EYE BOLT NUTS 

18 YOKE SLEEVE 

19 

HANDWHEEL 

20 HANDWHEEL NUT 

21 SLEEVE RETAINING NUT 

22 GREASE NIPPLE 

23 THRUST BEARING 

24 

STEM BLOCK 

25 STEM BLOCK PIN 

26 LANTERN RING 

MATERIALS 


A216 A352 A217 A351 



A105 ; LF2 ; 304 SS ; 316 SS 




13 % Cr ; 304 SS ; 316 SS 

13 % Cr ; 304 SS ; 316 SS 

13 % Cr ; 304 SS ; 316 SS ; 17-4 PH ; MONEL 

A194-2H A194-4 A194-2H A194-4 A194-8 

A193-B7 A320-L7 A193-B7 A193-B16 A193-B8 

SPIRAL WOUND ; RING JOINT - IRON 

13 % Cr ; 304 SS ; 316 SS 

BRAIDED GRAPHITE & DIE FORMED GRAPHITE RING 


13 % Cr ; 304 SS ; 316 SS 

13 % Cr ; 304 SS ; 316 SS 


A193-B7 A320-L7 

A193-B16 

A193-B8 

A194-2H A194-7M A194-2H 

A194-8 

ASTM A439-D2C 


CARBON STEEL 

316 SS 

CARBON STEEL 

316 SS 

CARBON STEEL 

CARBON STEEL 

CARBON STEEL 

316 SS 

13 % Cr ; 304 SS ; 316 SS 

13 % Cr ; 304 SS ; 316 SS 




ANSI Class ANSI 900, 1500 Class 900 


NOMINAL 

SIZE 


L / L2 

RF / BW 

L1 

RTJ 

Flange OD 

D 

Height 

H 

(Open) 

Handwheel 

W 

Weight 

Wt 


2 50 14,50 368 14,62 371 8,50 215,9 23,6 600 11,8 300 87 

2 1/2 65 16,50 419 16,62 422 9,62 244,3 26,0 660 13,8 350 130 

3 80 15,00 381 15,12 384 9,50 241,3 26,2 665 13,8 350 122 

4 100 18,00 457 18,12 460 11,50 292,1 31,5 800 19,7 500 182 

6 150 24,00 610 24,12 613 15,00 381,0 40,0 1015 23,6 600 434 

8 200 29,00 737 29,12 740 18,50 469,9 45,1 1145 23,6 600 730 

10 250 33,00 838 33,12 841 21,50 546,1 50,3 1278 GO GO 1231 

12 300 38,00 965 38,12 968 24,00 609,6 55,6 1411 GO GO 1568 


NOMINAL 

SIZE 


L / L2 

RF / BW 

L1 

RTJ 

Flange OD 

D 

Height 

H 

(Open) 

Handwheel 

W 

Weight 

Wt 


2 50 14,50 368 14,62 371 8,50 215,9 21,5 546 12,6 320 97 

2 1/2 65 16,50 419 16,62 422 9,62 244,3 23,2 589 13,8 350 168 

3 80 18,50 470 18,62 473 10,50 266,7 28,0 711 17,3 440 250 

4 100 21,50 546 21,62 549 12,25 311,2 28,3 718 19,7 500 435 

6 150 27,75 705 28,00 711 15,50 393,7 35,0 890 24,8 630 540 

8 200 32,75 832 33,13 842 19,00 482,6 48,8 1240 GO GO 970 

10 250 39,00 991 39,38 1000 23,00 584,2 65,0 1651 GO GO 1520 

12 300 44,50 1130 45,12 1146 26,50 673,1 73,6 1870 GO GO 1960 



PRESSURE SEAL 

Pressure Seal Class 600, 900 


H 

23 

19 

18 

12 13 

10 

9 

8 

7 

W 

25 

24 

21 

20 

17 

16 

14 15 

11 

6 

5 

4 

3 

2 

1 


ASME B16.34 


ASME B16.10 

End Flange : 

2 in - 12 in ASME B16.5 

Welding End : 

ASME B16.25 

CLASS 

600 

900 

AL06F-PS 

AL06R-PS 

AL06B-PS 

AL09F-PS 

AL09R-PS 

AL09B-PS 








L 

Operation : 

CLASS 

600 

900 








PART No. 

PART NAME 

MATERIALS 

1 

BODY 

2 

SEAT RING 


3 

DISC 


4 


5 

6 

7 

8 

DISC NUT 

STEM 

STUFFING BOX 

SEALING RING 

9 

PRESSURE RING 

10 

SEGMENT RING 

11 

SUPPORT PLATE 

12 


13 

BOX-PLATE NUT 

14 

BONNET-PLATE BOLT 

15 

BONNET-PLATE NUT 

16 

LANTERN RING 

17 

PACKING 

18 


19 

GLAND 

20 

GLAND EYEBOLT 

21 

GLAND FLANGE 

22 


23 

BONNET 

24 SCREW 

25 

YOKE SLEEVE 


ASTM A105 

HARD FACED 


HARD FACED 


















CARBON STEEL 



CARBON STEEL 

ASTM A439 Gr. D2 



PRESSURE SEAL 

Pressure Seal Class 1500, 2500 


25 

24 

23 

19 

18 

12 13 

10 

9 

8 

7 

W 

22 

21 

20 

17 

16 

14 15 

11 

6 

5 

4 

3 

H 


ASME B16.34 


ASME B16.10 

End Flange : 

2 in - 8 in ASME B16.5 

Welding End : 

ASME B16.25 

CLASS 

1500 

AL15F-PS 

AL15R-PS 

AL15B-PS 

AL25F-PS 

2500 AL25R-PS Ring-Type Joint Flange End 

AL25B-PS 







L1 

2 

1 

Operation : 

Size 

2 in - 4 in 

6 in - 8 in 

Standard 

Handwheel 

Handwheel 

Option 

- 

Bevel Gear 


PART No. 

PART NAME 

MATERIALS 

1 

2 

3 

4 

5 

6 

BODY 

SEAT RING 


DISC 



DISC NUT 

STEM 

7 STUFFING BOX 

8 

SEALING RING 

9 

PRESSURE RING 

10 

SEGMENT RING 

11 

SUPPORT PLATE 

12 


13 

BOX-PLATE NUT 

14 

BONNET-PLATE BOLT 

15 

BONNET-PLATE NUT 

16 

LANTERN RING 

17 

PACKING 

18 


19 

GLAND 

20 

GLAND EYEBOLT 

21 

GLAND FLANGE 

22 


23 

STEM BLOCK 

24 PIN 

25 

YOKE 


ASTM A105 

HARD FACED 


HARD FACED 


















CARBON STEEL 







PRESSURE SEAL 

PS CLASS 600, 900, 1500, 2500 


NOMINAL 

SIZE 

L 

RF 


L1 

RTJ 

L2 

BW 

Height 

H 

(Open) 

Handwheel 

W 

Weight 

Wt 

in mm 

2 50 

3 80 

4 100 

6 150 

8 200 

10 250 

12 300 


11,50 292,1 11,62 295 7,00 178 16,73 425 11,8 300 69 

14,00 356 14,12 359 10,00 254 21,50 546 14,0 355 80 

17,00 432 17,12 435 12,00 305 26,97 685 18,0 457 135 

22,00 559 22,12 562 18,00 457 36,97 939 GO GO 275 

26,00 660 26,12 663 23,00 584 42,99 1092 GO GO 480 

31,00 787 31,12 790 28,00 711 50,00 1270 GO GO 780 

33,00 838 33,12 841 32,00 813 61,81 1570 GO GO 1150 


NOMINAL 

SIZE 

L 

RF 


L1 

RTJ 

L2 

BW 

Height 

H 

(Open) 

Handwheel 

W 

Weight 

Wt 

in 

2 

3 

4 

6 

8 

mm 

50 

80 

100 

150 

200 


14,50 368,3 14,62 371 14,50 368 17,13 435 11,8 300 89 

15,00 381 15,12 384 12,00 305 26,97 685 14,0 355 125 

18,00 457 18,12 460 14,00 356 32,99 838 19,7 500 258 

24,00 610 24,12 613 20,00 508 45,00 1143 GO GO 465 

29,00 737 29,12 740 26,00 660 55,98 1422 GO GO 815 


NOMINAL 

SIZE 

L 

RF 


L1 

RTJ 

L2 

BW 

Height 

H 

(Open) 

Handwheel 

W 

Weight 

Wt 

in 

2 

3 

4 

6 

8 

mm 

50 

80 

100 

150 

200 


14,50 368,3 14,62 371 14,50 368 19,25 489 11,8 300 92 

18,50 470 18,62 473 18,50 470 25,00 635 14,0 355 135 

21,50 546 21,62 549 21,50 546 30,47 774 19,7 500 284 

27,75 705 28,00 711 27,75 705 42,99 1092 GO GO 498 

32,75 832 33,13 842 32,75 832 58,90 1496 GO GO 915 


NOMINAL 

SIZE 

L 

RF 


L1 

RTJ 

L2 

BW 

Height 

H 

(Open) 

Handwheel 

W 

Weight 

Wt 

in 

2 

3 

4 

6 

8 

mm 

50 

80 

100 

150 

200 


17,75 451 17,87 454 11,00 279 22,05 560 15,7 400 140 

22,75 578 23,00 584 14,50 368 29,72 755 22,0 560 247 

26,50 673 26,88 683 18,00 457 48,43 1230 GO GO 620 

36,00 914 36,50 927 24,00 610 70,51 1791 GO GO 1500 

40,25 1022 40,87 1038 30,00 762 82,13 2086 GO GO 3100 


ALFA VALVES 

Testing 

Globe valves are pressure tested according to API 598. 

a/ strength and tightness test 

b/ backseat tightness test 

c/closure tightness by low pressure ( if required in order) 

d/ closure tightness by high pressure ( if required in order) 

Installation 

Globe valves be installed pipeline in any position, however position with vertical axis is recommended. 


API 600 Standard applies for ordering. It is necessary to specify in an order; type number, nominal diameter, pressure 

class design, connection. control mode, body material, trim material, operating parameters, required tests, accompanying 

documentation 

Table of Globe valves CV coefficients (gal/min) 

NPS (”) CLASS 150 CLASS 300 CLASS 600 

2” 

3” 

4” 

6” 

8” 

10” 

12” 

57 

128 

230 

515 

910 

1424 

2053 

57 

128 

230 

515 

910 

1424 

2053 

57 

128 

230 

515 

- 

- 

- 

Unit conversions : 

Kv = 6/7 Cv 

1 psig = 0.006895 N/mm 2 

-5 

1 gal (US)/min = 6.30902.10 m 3/s 

Table of globe valves torque (ft lbs) 

NPS (”) 

2” 

3” 

4” 

6” 

8” 

10” 

12” 

CLASS 150 CLASS 300 CLASS 600 

max p = 285 psig max p = 740 psig max p = 1480 psig 

30 

60 

120 

260 

510 

495 

690 

60 

140 

270 

730 

820 

1310 

2100 

100 

290 

620 

1100 


HOW TO ORDER ALFA CASTED GLOBE VALVES 

SIZE 

FIG. No. 

08" 

A 

C 

06 

F 

L 

- 

WCB 

- 1C N 

Valve Size 

Brand 

Valve 

Identi - 

fication 



Trim - 

Body Material 

- 

Disc 

Type 

Modification 



0Q 

0H 

0T 

01 

1H 

02 

2H 

03 

04 

~ 

36 

VALVE 




1/4" 

1/2" 

3/4" 

1" 

1-1/2" 

2" 

2-1/2" 

3" 

4" 

~ 

36" 

ALFA 

L 

GLOBE 

0Q 

01 

03 

04 

06 

09 

15 

25 

J1 

J2 

J4 

J6 









JIS 10K 

JIS 20K 

JIS 40K 

JIS 63K 

P 

F 

R 

B 

S 

T 

C 

A 

FLAT FACE 

RAISED FACE 

RING JOINT 

BUTT WELD 

SOCKET WELD 

SCREWED 

COMBINATION 

SPECIAL 

TRIM 

BODY MATERIAL 

API No. 

NOMINAL TRIM 

ALFA 

CODE 

1 

F6 

A 

2 

304 

B 

3 

F310 

C 

5 HARDFACED D 



9 

MONEL 

M 

10 

316 

R 



13 

ALLOY 20 

U 


- NACE 

X 

- SPECIAL 

Y 

WEDGE/DISC 

SEATING 

13 Cr 

18 Cr - 8Ni 

25Cr - 20Ni 


13 Cr 

13 Cr 

Ni - Cu Alloy 

18 Cr - 8Ni - 2Mo 

Ni - Cu Alloy 

18 Cr - 8Ni - 2Mo 

19 Cr - 29Ni 

19 Cr - 29Ni 

Note 

Special 

SEAT SURFACE 

STEM/BUSHING 

HINGE PIN 

WCB 

C5 

WC6 

WC9 

C12 

LCB 

LCC 

13 Cr 

13 Cr 

LC3 

18 Cr - 8Ni 18 Cr - 8Ni CF8 

25Cr - 20Ni 25Cr - 20Ni CF8M 


CF3 







19 Cr - 29Ni 19 Cr - 29Ni 4A 


Note 

Special 

Note 

Special 

B62 

B14 

CI1 

DI3 

DI5 

SP 





















ASTM B148 Gr. C95600 


ASTM A395 

ASTM A536 

SPECIAL ALLOY 

DESIGN OPERATOR 

DISC TYPE 

MODIFICATION 

1L 

Plug Disc 

B 

Bolted Bonnet 

HW 

Hand Wheel 

W 

Welded Bonnet 

GO 

Gear Operated 

2L 

Ball Disc 

P 

Position Indicator 

CW 

HO 

PO 

MO 

Chain Wheel 




3L 

4L 


Needle Disc 

T 

N 

PS 

CY 

Teflon Seating Surface 

NACE Standard 

Pressure Seal 

Cryogenic 

5L 

V-Port Disc 

YL 

Y - Globe 


ALFATM 

CASTING FLOATING 

BALL VALVES 


Casting Floating Small & Medium Bore 

TM 

ALFA 

Alfa Ball Valve Floating Type applicable to chemicals, in general covering all applications, such as iron and 

steel , paper pulp industries as well as oil refineries. A ball valve performs an important function of controlling 

a fluid line with safety and also required to be highly reliable as a safety device. To meet the needs of safety, 

Alfa ball valves available with Seven Safety Functions that qualified under International Standards such as 

API and BS. 

Wrong Operation Preventive Lever, 

Key Lock, 

Blow-Out Proof Stem, 

Anti- Static Device, 

Body-Seal Contruction 

Seat Sealing Construction 

Fire-Safe Construction, 

Pneumatic Actuator 

Gear Operator 

Lever Operator 

2 


CONSTRUCTION AND FEATURES 

FLOATING TYPE FIGURE 

TM 

ALFA 

1. INSTALLED OF LEVER WHICH PERMITS NEITHER WRONG VISUAL DETERMINATION OF 

OPEN-CLOSE POSITION NOR IMPROPER INSTALLATION 

Ball, Stem and Lever is a unit assembly, when the Ball valve is open, position of Lever in parallel to piping and with the 

Lever right-angled to piping, the valve is closed. Open or close and opening degree is visually confirmed from a position 

of Lever. To prevent the possibility that the fluid may flow out once due to an opening or closure of the valve has been 

wrongly determined, an ALFA ordinary Ball Valve generally available wit the Stem has a square top shape, therefore the 

Lever does not always coincide with open and/or close of the valve due to an error in mounting and removing. 

Stem Top of ALFA Ball Valve 

Stem Top of Ordinary Type 

Stem top 

Opened Closed Opened Closed 

Lever Position 

If wrongly installed the levers, mounted in two directions will 

cause an open and close of the valve be reversed. 

2. KEY LOCK DEVICE 

When the Ball Valve installed outdoors or an 

inflammable petrolic product or chemical is treated the 

operation of the ball valve will be limited to protect it 

against the possibilities that on outsider may 

accidentally operate the lever or the valve may be 

opened or closed due to vibrations. The valve is so 

lockable with a pad lock at two points fully opened or fully 

closed as to prevent from wrong operation or an outsider 

or third person from opening or closing. 

3. BLOW-OUT PROOF STEM 

The stem of ball valve may blow out when the pressure running through the valve in the body cavity has risen. 

Therefore, to prevent such danger from taking place, the ALFA ball valve is provided with a stem flange in the lower part 

of the stem and so constructed that the stem may not blow out upwards. Event if the packing (thrust bearing) has burnt 

out in a fire or for any other reason, the internal pressure will bring the stem flange into close contact with the back seat 

of the valve body. Thus the fluid may be positively prevented from leaking through the packing so burnt out, in particular, 

the back seat at the stem flange will be requirement essential to the fire-safety of the valve. The design of an ordinary 

stem when the pressure in the body cavity should abnormally rise or a gland bolt should be loose or missing anyway, an 

ordinary stem which held with packing will blow out and the fluid will burst out. Besides, there are possibilities that such 

accident may take place upon maintenance. 

Stem Seal in ALFA Ball Valve 

Ordinary Stem 

Stem Bearing 

Trust Bearing 

Stem 

Gland Packing 

Body Back Seat 

Stem Flange 

Ball 

Gush Out 

the Fluid Media 

Body 

Ball 

To prevent galling while keeping the operational torque at the minimum level , the Stem employed with the stem-sliding portion aconsist of the stem bearing and thrust 

bearing, both made of Teflon as a base material. 

3 




TM 

ALFA 

4. ANTI-STATIC DEVICE 

The static electricity is generated due to the 

friction between ball and Teflon seat while 

operating the ball valve and charged in the ball. 

To prevent an accident that caused by 

electrostatic charge, the ALFA ball valve is 

provided with an anti-static device. Preventing 

electro-static sparks from resulting in 

inflammation is a requirement essential to the 

treatment of such low-flashing point fluids as 

gasoline, natural liquefied gas, propane gas, etc. 

The ALFA ball valve is completely conductive 

between ball and body in which no static 

electricity may charge. Any other parts, 

moreover, are conductive to the grounding 

circuit. 

Anti-Static Device 

Body 

Stem 

Body 

Ball 

5. FIRE-SAFE 

Downstream Seat 

Non-metallic parts of ball valve such as seat, 

gland packing, gasket may burnt out when the 

valve heated in a fire. Then, an excessive 

leakage will result so that the fire will gain 

headway. The ALFA ball valve is provided with a 

fire-safe mechanism to prevent such situation 

from arising. Once the seat has burnt out, the ball 

moves in close contact directly with the metal 

seat located on the part of the body, therefore the 

ball valve maintains its sealing property. 

Body 

Fluid Pressure 

TFE seat 

burnt out 

Metal to metal Seal 

(Fire-safe) 

Upstream 

Ball 

~ Alfa Ball Valve is provide with Metal Seat on both upstream and downstream sides. 

Downstream 

6. EFFECTIVE SEAT SEAL 

The Seat of ALFA ball valve is featured by its high 

capability of sealing against either high or low 

pressure as well as vacuum condition. 

Downstream Seat 

Seat 

Fluid Pressure 

Original Form 

~ The downstream seal is flexibly sealing 

according to a fluid pressure. 

7. BODY-SEAL CONSTRUCTION 

The joint between body and body cap of ball 

valve are constructed to be sealed with gasket. 

The body-body cap seal construction of ALFA 

ball valve has been designed in such way to 

prevent the valve body from beeing tightened 

one-sidedly and to avoid an excessively large 

force that may act on the gasket due to the metal 

touch when the valve has received a load from 

an external force. In addition, the body-seal 

contruction will minimize all those factors such 

as a change in turning torque which might lead to 

leakage or unequal working torque. 

ALFA Ball Valve 

Gasket 

Metal Touch 

Ordinary Body Seal 

Gasket 

4 


STANDARD PARTS MATERIAL FULL BORE TYPE 

SHUT VALVE 

LOCK HOLE 

Basic Design 

TM 

ALFA 

OPEN VALVE 

LOCK HOLE 

12 

CARBON STEEL LEVER FOR VALVES 

NOMINAL DIAMETER ½ IN - 2 IN 

DUCTILE IRON LEVER FOR VALVES 

NOMINAL DIAMETER 2½ IN - 4 IN 

W 

STEM 

11 

Ductile Iron 

Steel Pipe 

7 

6 

4 

8 

3 

9 

17 

16 

2 

10 

15 

18 

H 

BALL 


NOMINAL DIAMETER 4 - 8 IN 

5 

GEAR OPERATOR 

d 

D 

ALFA FIGURE No. 

AB01F2LF Class 150 

AB03F2LF Class 300 

13 1 

14 

L 

Standard Parts Material Full Bore Type Table 

No. 

Body and Trim 

Material Code 

WCB-SFR 

CF8-SFR 

CF8M-SSR 

1 Body 

2 Body Cap 

3 Stem 

4 Gland Bearing 

5 Ball 

6 Gland Flange 

7 Stopper 

8 Gland Packing 

9 Gasket 

10 Stem Bearing 

11 Lever 

12 Gland Bolt 

13 Stud 

14 Nut 

15 Thrust Bearing 

16 Seat 

17 Seat Retainer 

18 Spring 

19 Gear Operator 

ASTM A216 Gr.WCB 






⎮ ASTM A276 Tp. 304⎮ 

ASTM A276 Tp. 316 

⎮ 304SS⎮ 



Carbon Steel . Zn Plated 

Carbon Steel 

T.F.E 

T.F.E 

T.F.E 

⎮ Reinforced T.F.E⎮ 




See Lever Material Details 



Alloy Steel 

Carbon Steel 

Carbon Steel 

⎮ T.F.E ⎮ 

304 SS 

304 SS 

304 SS 

⎮ T.F.E ⎮ 

⎮ T.F.E ⎮ 

⎮ T.F.E ⎮ 

⎮ T.F.E ⎮ 

⎮ T.F.E ⎮ 

⎮ ASTM A276 Tp. 304⎮ ASTM A276 Tp. 316 

316 SS or Inconel X-750 

See Gear Operator Material Details 

Note : * End Flanges are based on ASME B16.5 Raised Face. 

** For other Body/Trim material combinations refer to "How to Order Alfa Ball Valves" or consult your ALFA 

distributor or factory. 

5 


MATERIAL OF STANDARD PARTS 

Class 150, 300 

Floating Body Parts 

TM 

ALFA 

DRAWING OF ALFA BALL VALVE BODY PARTS 

Note : The below drawing shows the construction of Alfa Ball Valve Class 150 & 300 RF Flange, with 

a nominal diameter of 100 mm (parts vary by valve nominal size). 

(1) Body 

(2) Body Cap 

(3) Stem 

(4) Gland Ring 

(5) Ball 

(6) Gland Flange 

(7) Stopper 

(8) Gland Packing 

(9) Gasket 

(10) Stem Bearing 

(11) Lever 

(12) Gland Bolt 

(13) Stud 

(14) Nut 

(15) Thrust Bearing 

(16) Spring 

(17) Seat 

(18) Seat Retainer 

(19) Snap Ring 

12 

10 

15 

20 

11 

19 

7 

6 

4 

3 

8 

14 2 9 18 5 17 13 

16 

1 

6 


FULL BORE TYPE 

SPLIT BODY TWO-PIECE DESIGN 


TM 

ALFA 

Stem top 

350 

h 

600 

W 

W 

W 

Flange 

H 

H 

H 

200mm-398mm 

300mm-437mm 

d 1 

g C D 

L 

L 

L 

t 

N 

m 

15mm-50mm 

AB01F2LF 

65mm-80mm 100mm-200mm 200mm,250mm 

(Worm Gear Operator) 

# 200mm :Option 

ALFA FIGURE. No. 

- Class 150, Full Bore, Split Body 2 Pieces Design, Floating Type, Raised Face Flange Ends 

Full Bore Type Class 150 Dimension and Weights 

(mm) 

Nominal Diameter 

ANSI 150Lb (JIS 10K) Flange Size 

d L H h W 

Inch (mm) D C t g Raised N m 

1/2" 15 

( ) Size for JIS 10K 

* For worm gear operator, see the drawing. 

89 60.5 11,2 35 1.6 4 16 

13 108 59 6 130 2.2 

(95) (70) (12) (51) (1) (4) (15) 

98 70 11.2 43 1.6 4 16 

3/4" 20 19 117 63 6 

(100) (75) (14) (56) (1) (4) (15) 

108 79.5 11.2 51 1.6 4 16 

1" 25 25 127 75 8 

(125) (90) (14) (67) (1) (4) (19) 

127 98.5 14.3 73 1.6 4 16 

(140) (105) (16) (81) (2) (4) (19) 

152 120.5 15.9 92 1.6 4 19 

107 12 

(155) (120) (16) (96) (2) (4) (19) 

178 139.5 17.5 105 1.6 4 19 

2 1/2" 65 64 190 142 

17 400 15.0 

(175) (140) (18) (116) (2) (4) (19) 

190 152.5 19.1 127 1.6 4 19 

3" 80 76 203 152 17 400 19.0 

(185) (150) (18) (126) (2) (8) (19) 

229 190.5 23.9 157 1.6 8 19 

4" 100 102 229 178 

22 650 30.0 

(210) (175) (18) (151) (2) (8) (19) 

254 216 23.9 186 1.6 8 22 

5" 125 127 356 252 27 1050 58.0 

(250) (210) (20) (182) (2) (8) (23) 

279 241.5 25.4 216 1.6 8 22 

6" 150 152 394 272 

27 1050 75.0 

(280) (240) (22) (212) (2) (8) (23) 

343 298.5 28.6 270 1.6 8 22 

8" 200 203 457 342* 32 1410 115.0 

(330) (290) (22) (262) (2) (12) (23) 

406 362.0 30.2 324 1.6 12 25 

10" 250 254 533 * - - 

(400) (355) (24) (324) (2) (12) (25) 

Mass (Kg) 

130 2.7 

160 4.5 

1 1/4" 32 32 140 86 / / / / / / / 8 160 6.5 

1 1/2" 40 38 165 97 

2" 

50 51 178 

12 

230 7.0 

230 9.5 

230.0 

7 





TM 

ALFA 

Stem top 

350 

h 

600 

W 

W 

W 

Flange 

H 

H 

H 

200mm-398mm 

300mm-437mm 

d 1 

g C D 

L 

L 

L 

t 

N 

m 

15mm-50mm 

65mm-80mm 100mm-200mm 200mm,250mm 


# 200mm :Option 


AB03F2LF 

- Class 300, Full Bore, Split Body 2 Pieces Design, Floating Type, Raised Face Flange Ends 

Full Bore Type Class 300 Dimension and Weights 

(mm) 

Nominal Diameter 

d L H 

ANSI 300Lb ( JIS 20K) Flange Size 

h W Mass (Kg) 


1/2" 15 13 140 59 

95 66.5 14.3 35 1.6 4 16 

6 130 2,5 

(95) (70) (14) (51) (1) (4) (15) 

3/4" 20 19 152 63 

117 82.5 15.9 43 1.6 4 19 

6 130 3.5 

(100 (75) (16) (56) (1) (4) (15) 

1" 25 25 165 75 

124 89 17.5 51 1.6 4 19 

8 160 5,5 

(125) (90) (16) (67) (1) (4) (19) 

1 1/4" 32 32 178 86 / / / / / / / 

8 160 7,5 

1 1/2" 40 38 190 97 

156 114.5 20.7 73 1.6 4 22 

12 230 9,0 

(140) (105) (18) (81) (2) (4) (19) 

2" 50 

3" 80 76 283 

4" 

100 102 305 

5" 125 127 

51 216 

2 1/2" 65 64 241 142 

6" 150 152 403 

107 

165 127 22.3 92 1.6 8 19 

(155) (120) (18) (96) (2) (8) (19) 

190 149 25.4 105 1.6 8 22 

(175) (140) (20) (116) (2) (8) (19) 

152 

210 168 28.6 127 1.6 8 22 

17 400 27,0 

(200) (160) (22) (132) (2) (8) (23) 

178 

254 200 31.8 157 1.6 8 22 

22 650 40,0 

(225) (185) (24) (160) (2) (8) (23) 

381 252 

279 235 35 186 1.6 8 22 

27 1050 65,0 

(270) (225) (26) (195) (2) (8) (25) 

272 

318 270 36.6 216 1.6 12 22 

27 

(305) (260) (28) (230) (2) (12) (25) 

12 230 13,0 

17 400 21,0 

1050 95,0 

8" 200 203 502 342* 

381 330 41.3 270 1.6 12 22 

32 1410 150,0 

(350) (305) (30) (275) (2) (12) (25) 

( ) Size for JIS 20K 


8 


STANDARD PARTS MATERIAL REDUCED BORE TYPE 

Basic design 

TM 

ALFA 

SHUT VALVE 

LOCK HOLE 

OPEN VALVE 

LOCK HOLE 

12 

CARBON STEEL LEVER FOR VALVES 

NOMINAL DIAMETER ½ IN - 2 IN 


NOMINAL DIAMETER 2½ IN - 4 IN 

W 

STEM 

11 

Ductile Iron 

Steel Pipe 

7 

6 

4 

8 

3 

9 

17 

16 

2 

10 

15 

18 

H 

BALL 


NOMINAL DIAMETER 4 - 8 IN 

5 

GEAR OPERATOR 

d 2 

d 1 

D 

A F B B A 


AB01R2LF Class 150 

AB03R2LF Class 300 

13 1 

14 

L 

Standard Parts Material Reduced Bore Type Table 

No. 

Body and Trim 

Material Code 

WCB-SFR CF8-SFR CF8M-SSR 

1 Body 

ASTM A216 Gr.WCB ASTM A351 Gr. CF8 ASTM A351 Gr. CF8M 

2 Body Cap 

ASTM A216 Gr.WCB ASTM A351 Gr. CF8 ASTM A351 Gr. CF8M 

3 Stem 


4 Gland Ring 

⎮ 304SS⎮ 

5 Ball 




Carbon Steel . Zn Plated 

7 Stopper 

Carbon Steel 

8 Gland Packing 

T.F.E T.F.E T.F.E 

9 Gasket 

⎮ Reinforced T.F.E⎮ ⎮ Reinforced T.F.E⎮ ⎮ Reinforced T.F.E⎮ 


⎮ Reinforced T.F.E⎮ ⎮ Reinforced T.F.E⎮ ⎮ Reinforced T.F.E⎮ 

11 Lever 

See Lever Material Details 

12 Gland Bolt 

Alloy Steel 

304 SS 

13 Stud 

Carbon Steel 

304 SS 

14 Nut 

Carbon Steel 

304 SS 


⎮ T.F.E ⎮ ⎮ T.F.E ⎮ ⎮ T.F.E ⎮ 

16 Seat 

⎮ T.F.E ⎮ ⎮ T.F.E ⎮ ⎮ T.F.E ⎮ 



18 Spring 

316 SS or Inconel X-750 

19 Gear Operator See Gear Operator Material Details 

Note : * End Flanges are based on ASME B16.5 Raised Face. 

** For other Body/Trim material combinations refer to "How to Order Alfa Ball Valves" or consult your ALFA 

distributor or factory. 

9 


REDUCED BORE TYPE 



TM 

ALFA 

Stem top 

h 

350 

600 

115.5 (85) 

W 

W 

H 

H 

250mm-398mm 

300mm-437mm 

Flange 

d 2 

d 1 

g C D 

L 

L 

L 

t 

N 

m 

80mm-100mm 

125mm-250mm 

250mm,300mm 


# 250mm, Option 

AB01R2LF 


- Class 150, Reduced Bore, Split Body 2 Pieces Design, Floating Type, Raised Face Flange Ends 

Reduced Bore Type Class 150 Dimension and Weights 

Nominal 

ANSI 150Lb (JIS 10K) Flange Size 

Diameter d 1 d 2 L H 


3”x2 

( ) 

4”x 

6”x 4 

8”x 6 

10”x 8 

12”x 10 

80 76 64 

190 152.5 19.1 127 1.6 4 19 

203 142 17 400 18.9 

(185) (150) (18) (126) (2) (8) (19) 

229 190.5 23.9 157 1.6 8 19 

100 102 76 229 152 17 400 23.0 

(210) (175) (18) (151) (2) (8) (19) 

150 152 127 

279 241.5 25.4 216 1.6 8 22 

(280) (240) (22) (212) (2) (8) (23) 

343 298.5 28.6 270 1.6 8 22 

200 203 152 457 272 27 1050 83.0 

(330) (290) (22) (262) (2) (12) (23) 

406 362.0 30.2 324 1.6 12 25 

250 254 203 533 342* 

32 1410 

(400) (355) (24) (324) (2) (12) (25) 

300 305 254 

Size for JIS 10K 


ELECTRIC ACTUATOR 

394 252 

ALFA use necessary electrical actuator according to the need of customers. 

27 1050 

484 423.0 31.8 381 1.6 12 25 

610 * - - 310.0 

(445) (400) (24) (368) (3) (16) (25) 

1. SMB L 120 Series made by Limitorque Gear Corporation of American Philadelphia. 

2. SMB L 120 Series made by Japanese Limitorque Gear Corporation. 

3. All Series made by British. 

4. Other Manufactures. 

h 

W 

(mm) 

Mass 

(Kg) 

55.0 

122.0 

10 





TM 

ALFA 

Stem top 

h 

350 

600 

115.5 (85) 

W 

W 

H 

H 

250mm-398mm 

300mm-437mm 

Flange 

d 2 

d 1 

g C D 

L 

L 

L 

t 

N 

m 

80mm-100mm 

125mm-250mm 

250mm,300mm 


# 250mm, Option 

AB03R2LF 


- Class 300, Reduced Bore, Split Body 2 Pieces Design, Floating Type, Raised Face Flange Ends 

Reduced Bore Type Class 300 Dimension and Weights 

( ) 

Nominal 

Diameter ANSI 300Lb (JIS 20K) Flange Size 

d 1 d 2 L H 

h W 


3”x 2 

4”x 3 

6”x 4 

8”x 6 

10”x 8 

Size for JIS 20K 


ELECTRIC ACTUATOR 

ALFA use necessary electrical actuator according to the need of customers. 

1. SMB L 120 Series made by Limitorque Gear Corporation of American Philadelphia. 

2. SMB L 120 Series made by Japanese Limitorque Gear Corporation. 

3. All Series made by British. 

4. Other Manufactures. 

210 168 28.6 127 1.6 8 22 

80 76 64 283 142 

17 400 

(200) (160) (22) (132) (2) (8) (23) 

254 200 31.8 157 1.6 8 22 

100 102 76 305 152 

17 400 

(225) (185) (24) (160) (2) (8) (23) 

150 

318 270 36.6 216 1.6 12 22 

152 127 403 252 

27 1050 

(305) (260) (28) (230) (2) (12) (25) 

381 330 41.3 270 1.6 12 25 

200 203 152 502 272 27 1050 95.0 

(350) (305) (30) (275) (2) (12) (25) 

444 388 47.7 324 1.6 16 29 

250 254 203 568 342* 32 1410 144.0 

(430) (380) (34) (345) (2) (12) (27) 

(mm) 

Mass 

(Kg) 

34.0 

38.0 

67.0 

11 



Seat Rating & Test Pressure 

TM 

ALFA 

SEAT RATING 

ALFA ball valves have a range of their 

applications defined by temperature 

and pressure. The seat is Available in 

two types by material, one of them 

should be selected according to the 

working temperature. 

For higher temperature and pressure 

exeeding the limits shown here consult 

your ALFA distributor or the factory. 

For selection in the zone marked with 

slant lines, AB01F2TF (Class 150, 

Trunnion, Full Bore) or AB01R2TF 

(Class 150, Trunnion, Reduced Bore) 

and AB03F2TF (Class 300, Trunnion, 

Full Bore) or AB03R2TF(Class 300, 

Trunnion, Reduced Bore) are available. 

Body ratings given in the above table 

conform to ANSI B 16.34 stainless steel 

and seat ratings to Bs5351 (seat rating 

of 250 mm full bore and 300 mm 

reduced bore is ALFA own rating). 

PRESSURE Mpa 

PRESSURE Mpa 

7.0 

6.0 

5.0 

4.0 

3.0 

2.0 

1.0 

7.0 

6.0 

5.0 

4.0 

3.0 

Full Bore (15mm~20mm) 

T Seat 

E.G Seat 

150 Lb Body Rating 

-20 20 60 100 140 180 220 240 300 

TEMPERATURE 


0 

(C ) 


Reduced Bore (150~200mm) 

2.0 

T Seat 

E.G Seat 


1.0 


-20 20 60 100 140 180 220 240 300 

TEMPERATURE 

0 

(C ) 

T Seat : T.F.E (Teflon) 

E Seat : Reinforced T.F.E. 

G Seat : Reinforced T.F.E. 

PRESSURE Mpa 

PRESSURE Mpa 

7.0 

6.0 

5.0 

4.0 

3.0 

2.0 

1.0 

7.0 

6.0 

5.0 

4.0 

3.0 

2.0 


Reduced Bore (80mm) 

T Seat 

E.G Seat 


-20 20 60 100 140 180 220 240 300 

TEMPERATURE 

Full Bore (200mm) 


T Seat 

E.G Seat 


1.0 


0 

(C ) 


-20 20 60 100 140 180 220 240 300 

TEMPERATURE 

0 

(C ) 

PRESSURE Mpa 

PRESSURE Mpa 

7.0 

6.0 

5.0 

4.0 

3.0 

2.0 

1.0 

7.0 

6.0 

5.0 

4.0 

3.0 

2.0 

1.0 


Reduced Bore (100mm~125mm) 

E.G Seat 

T Seat 


-20 20 60 100 140 180 220 240 300 

TEMPERATURE 


Full Bore (250mm) 


E.G Seat 

T Seat 

0 

(C ) 


-20 20 60 100 140 180 220 240 300 

TEMPERATURE 

(C 0 

) 

DIFFERENTIAL PRESSURE/FLOW RATINGS 

DIFFERENTIAL PRESSURE (MPa) 

0.2 

C.V 

0.1 

0.04 

0.03 

0.02 

0.01 

0.004 

0.003 

0.002 

0.001 


15 mm 

20 mm 

25 mm 

40 mm 

45 mm 

65 mm 

80 mm 

100 mm 

125 mm 

150 mm 

200 mm 

250 mm 

DIFFERENTIAL PRESSURE (MPa) 

0.2 

C.V 

0.1 

0.04 

0.03 

0.02 

0.01 

0.004 

0.003 

0.002 

0.001 


80 mm 

100 mm 

125 mm 

150 mm 

200 mm 

250 mm 

300 mm 

0.0004 

0.0003 

0.0004 

0.0003 

0.0002 

0.0002 

0.0001 

0.0001 

0.5 

1.0 

2.0 

3.0 

4.0 

10 

20 

30 

40 

100 

200 

FLOW RATE (m/H) 

300 

400 

1000 

2000 

3000 

4000 

MAXIMUM OPERATING PRESSURE AND TEST PRESSURE 

STANDARD FACE-TO-FACE DIMENSION API SPEC. 6D ;ASME B16.10 

FLANGE STANDARD ASME B.16.5 

10000 

20000 

10 

20 

30 

40 

100 

200 

300 

400 

1000 

FLOW RATE (m/H) 

2000 

3000 

4000 

10000 

20000 

API SPEC. 6D 

Class 

MAX. OPERATING PRESSURE 

RATING, (psig) at 

TEMPERATURE ( 0 F) 

-20 to 100 150 200 250 

Test Pressure, (psig) 

Seat Test 

Shell Test 

Maximum operating pressure ratings for standard flanged end 

and standard weld end valves, carbon steel body materials 

(refer to materials listed in table 3.1, API spec. 6D) 

150 275 270 260 245 300 425 

300 720 705 675 665 800 1100 

400 960 940 900 885 1060 1450 

600 1440 1415 1350 1330 1600 2175 

900 2160 2120 2025 1995 2400 3250 

1500 3600 3540 3375 3325 4000 5400 

12 



SIZE 

FIG. No. 

08" 

A 

B 

06 F 2 T 

F - WCB - SS R 

- GO - 

F 

Valve 

Body 

Connec - 

Pressure Bore 

Design 

Valve Size Brand Identifi - 

Configu - 

tion 

Rating Type 

Type 

- 

cation 

ration 

Type 

Body 

Material 

- 

Trim 

Material 

Seat 

Material 

Design 

- Opera- 

- 

tor 

Modification 

8 in ALFA BALL VALVE, ANSI CLASS 600, FULL BORE, 2 PIECE BODY, TRUNNION MOUNTED, RAISED FACE, BODY MATERIAL : ASTM 

A216 Gr.WCB, TRIM MATERIAL : 316 SS BALL, 316 SS STEM, REINFORCED PTFE SEAT, GEAR OPERATED, FIRE SAFE DESIGN 

VALVE SIZE 

BRAND 

VALVE 


PRESSURE RATING 

0Q 1/4" 

01 ANSI Class 150 

0H 1/2" 


0T 3/4" 


01 1" 


1H 1 1/2" 


02 2" 


ALFA B : BALL VALVE 

2H 2 1/2" 


03 3" 

04 4" J1 

JIS 10K 

- 

- J2 

JIS 20K 

36 36" 

J4 

JIS 40K 

J6 

JIS 63K 

F 

R 

S 

BORE TYPE 

FULL PORT 

REDUCED 

PORT 

SPECIAL 

PORT 

WCB 

C5 

WC6 

WC9 

C12 

LCB 

LCC 

LC3 

CF8 

CF8M 

CF3 

CF3M 

CF8C 

CN7M 

Mo 

CD3 

CD3MW 

INC 

TIN 

BODY CONFIGURATION 

1 WELDED BODY 

2 END ENTRY - 2 PIECE 



















NICKEL ALLOY 

TITANIUM 

BODY MATERIAL 

L 

T 

DESIGN TYPE 

FLOATING TYPE 

TRUNNION TYPE 

TRIM MATERIAL 

F1 


F6 

ASTM A182 Gr. F6a 

CODE BALL 

F6N 

ASTM A182 Gr. F6NM 

SF 

304 SS 

F9 


SS 

316 SS 

F11 


ST 

317 SS 

F22 


CC CS-Cr Plated 

A10 

ASTM A105 

CD CS-Cr Plated 

LF2 

ASTM A350 Gr. LF2 

CE CS-Cr Plated 

304 


NC CS-Ni Plated 

304L ASTM A182 Gr. F304L 

ND CS-Ni Plated 

316 


NE CS-Ni Plated 


AT 

Alloy 20 

317 


ML 

Monel 


IL 

Inconnel 

F321 


TT Titanium 

F347 


HC Hastelloy C 

F51 ASTM A182 Gr. F51(Duplex) 

SE 

Stellited 

F57 


EN 

ENP 

SP 

SPECIAL PER P.O 

SP Special per P.O 

P 

F 

R 

B 

S 

T 

C 

A 


FLAT FACE 

RAISED FACE 

RING JOINT 

BUTT WELD 

SOCKET WELD 

SCREWED 

COMBINATION 

SPECIAL 

STEM 

304 SS 

316 SS 

317 SS 

316 SS 

304 SS 

410 SS 

316 SS 

304 SS 

410 SS 

Alloy 20 

Monel 

Inconnel 

Titanium 

Hastelloy C 

Stellited 

ENP 

Special per P.O 

S E A T 

DE S IG N O P E R A TO R 

M O D I F IC AT IO N 

F 

PTF E 

R R e info rce d PTF E 

N 

N 

N ylo n 

R e info rce d N ylo n 

V 

Vito n 

B 

Buna -N 

E 

EPDM 

H 

UH M W PE 

M M e tal (ba se o n o rde r) 

P 

PEEK 

S 

Spec ia l pe r P.O 

H W 

Ha nd W he el 

SX 

Sho rt Patter n 

L O 

G O 

H O 

Leve r O pe ra te d 

G ea r O pe rate d 

Hydra ulic O pe ra te d 

N 

B 

S 

NA C E Standa rd 

Blo c k & B le ed 

Sea la nt Inje ctio n Po rt 

PO Pneum a tic O per ated 

D D rain & V e nt 

M O 

Mo to r O pe ra te d 

F 

F ire Sa fe De sign 

CW 

C ha in W h ee l 

13 


ALFATM 

CASTING TRUNION 

BALL VALVES 


Material of Main Parts 

Application 

TM 

ALFA 

ALFA HIGH PRESSURE LARGE-SIZE BALL VALVES STANDARDIZED IN 

TWO TYPES OF APPLICATION-PIPELINE AND GENERAL PURPOSE USE 

These products have been developed based on our high pressure valve design and manufacturing 

experience and adopting the international latest technology standards, they are mainly used for petroleum, 

natural gas and sludge pipelines and general purpose pipings. The valves for pipelines in particular are 

designed based on our in-depth studies on the resistance against various piping stresses, safety and climatic 

suitability, etc. The designs for sealing and structure are unique to our factory. Contact us for information on 

the various control system and valve operator such as gear operator, electric motor and cylinder actuator. 

Functions : 

Block & Bleed 

Self-Relief Feature 

Tight Shut-Off 

Fire-Safe 

Trough-Conduit 

Quick Seal Recovery 

Seat Seal Design 

Sealing Of Gland Assembly 

TWO PIPE BODY CONSTRUCTION 

Drain Plug 

Extensions 

Operators 

End Connection 

Body Material 

Seat Material 

Control Systems 

Operational Rebiability 

Resistance To Piping Stress 

TWO PIECE BODY CONTRUCTION 

2 


TRUNNION BALL VALVES 

BLOCK AND BLEED 

The function of Block and Bleed 

is sealing of fluids by two seating 

s u r f a c e s ( u p s t r e a m a n d 

downstream) which in the closed 

position, provides blockage of 

flow from both ball valve ends 

when the cavity between the 

seating surface is vented or 

drained. A means shall be 

provided for draining or venting 

the fluids accumulated in the 

body cavity between the seating 

surfaces. 

Standard feature of Alfa Ball 

Valves are supplied with a vent 

plug installed in the lower body 

area and a vent valve can be 

attached to this plug upon 

customer's request. 

The advantages are : 

* Leakage of fluids and damage of seats are 

checked in advance. 

* Minimized of contamination caused during 

changing of fluid types. 

* Gland seal parts can be changed under 

pressure. 

Up 

Stream 

Down 

Stream 

For lines using sphere for 

creating a boundary between 

different type of oil in a product 

line is passed through a pipeline 

and to prevent oil-mixing in 

particular, accurate full round 

bore of the valve and inner 

surface finish of the fluid passage 

are required. 

TIGHT SHUT-OFF 

ALFA's Ball Valve sealing system 

can be sealed the fluid 

completely. 

Structural & Features 

PRESSURE SELF-RELIEF 

Due to thermal expansion of 

fluids entrapped in the ball valve 

body which caused the pressure 

of the fluid inside the valve body 

exceed the line pressure, seats 

provides automatic pressure 

relief without the aid of safety or 

vent valve. 

Injection to Seat 

“O” Ring 

Spring 

TFE Seat 

Body 

Ball 

Sealant 

TM 

ALFA 

FIRE SAFE DESIGN 

Sealant Injection 

“O” Ring 

Even if the elastomers material of 

Valve O-Ring and thermoplastics 

material (Reinforced Teflon or 

Nylon or PEEK) of Valve Seats 

are overheated and destroyed by 

a b n o r m a l h e a t i n g i n a n 

emergency such as a fire, etc., 

the valve can be operated 

without fail to prevent explosions 

and the fire from spreading. The 

amount of leakage will be limited 

by metal-to-metal contact 

between the Ball and Seat 

Retainer. The metal seal portion 

is identical both for single and 

double seats. 

Conventional Sealing 

THROUGH CONDUIT 

A through conduit Ball Valve is a 

full bore design valve with a 

circular hole in the closure 

member that will pass a sphere 

no smaller than specified for the 

applicable nominal size (less the 

tolerance). Besides a full bore it is 

necessary to align the pipe inner 

diameter with the valve fluid 

passage except that the end 

preparation of weld-end valves 

may require a smaller bore at the 

weld end to properly mate with 

the pipe. 

Body 

Ball 

QUICK SEAL RECOVERY 

ALFA Ball Valve are supplied with 

a Sealant Injectors. When 

leakage occurs at the seat and 

gland, leaks from the seal can be 

temporarily stopped (quick 

recovery) by injection of sealant 

material into the secondary seal 

system. 

Ball 

Fire-safe Sealing 

Ball 

Spring 

Seat Retainer 

Spring 

“O” Ring 

Retainer 

TFE Seat 

Seat Retainer 

“O” Ring 

Retainer 

Metal To Metal Contact 

3 



Structural & Features 

TM 

ALFA 

TFE Stem Bearing 

Reinforced Stem Bearing 

Reinforced Stem Bearing 

SEAT STRUCTURE 

There are two types of Seats 

Structure, the single seal system and 

the double seal system. Generally the 

single seal system having self-relief 

function is defined as the standard and 

is used mainly for pipelines. The 

double seal system with improved seal 

ability can be employed for cast steel 

valves on request. 

TFE Stem Bearing 

Gland Seal 

OPERATING TORQUE 

The operating torque is small and 

smooth operation over a long period 

without supplying lubricant by used 

low friction coefficient Thermoplastic 

material such as PTFE as the principal 

material in the sliding portions (Seat 

and Stem Bearing). 

Back-Up 

Ring 

“O” Ring 

Gland 

“O” Ring 

Stem 

Gland Bolt 

Bolt 

Sealant 

Injection 

GLAND SEAL 

The gland seal construction contains 4 

O-Rings, 2 on Stem Side and 2 on the 

Body Side. It is constructed so that a 

sealant can be injected (as shown on 

the below figure). 

Stem 

Extensions 

STEM EXTENSIONS 

If valves will be used at low 

temperature service and to be buried 

underground, stem extension can be 

equipped upon request. The optional 

dimensions of the stem extensions 

can be provided depends on the 

burying depth. The operator types 

such as a worm gear operator, a 

cylinder actuator or an electric motor 

can be installed. 

4 



Seat Design 

TM 

ALFA 

SINGLE-SEAL SYSTEM 

During normal operation in which the upstream or downstream pressure to the ball valve is higher than the 

inner pressure of the body cavity, the seal is retained by the coil spring resiliency and the pressure difference. 

The seat locked in the seat retainer is pressed against the ball by coil spring force. The seat will be pressed 

back slightly by pressure the pressure difference if the inner pressure of the body cavity increases 

abnormally for some reason and a small gap will be formed between the seat and the ball. Therefore the 

inner pressure is self-relieved to the upstream or downstream side thereby preventing in advance any 

danger from the abnormal pressure increase in the body cavity. 

Fig. 1 

A 

The seat will be pressed against 

the ball by the pressure acting on 

the area represented by the 

difference between D1 and D2 

when the pressure is applied to 

the upstream side. 

A 

A B 

B 

D 1 D 2 

D 3 

(Upstream side) 

(Ball) 

B 

D 1 

(Downstream side) 

Spring 

Seat 

O - ring 

Seat Retainer 

B 

The seat will be pressed back 

from the ball and self-relieved by 

the pressure acting on the area 

represented by the difference 

between D1 and D3 when the 

pressure in the body cavity 

becomes higher than pressure on 

the upstream or downstream 

side. 

DOUBLE-SEAL SYSTEM 

The Double Seal System comprises the Seat Retainer and the O-ring Retainer. This structure provides a 

tight contact of the seat due to the coil spring resilient force as well as improved seal ability caused by the 

action of the pressure difference when the pressure difference exists between the upstream or downstream 

side, whichever side pressure is higher. The seat are always in tight contact with the ball to block the fluid 

completely on both the upstream and downstream sides. Therefore it is possible to prevent leaks even if 

either one of the seats should be damaged. A relief valve must be installed to prevent any danger arising from 

the increasing of abnormal pressure in the body cavity since, no self-relief action is provided. 

Fig. 2 

A 






the upstream side. 

A 

A B 

D 1 D 2 

D 3 

D 4 

(Upstream side) 

(Ball) 

B 

(Downstream side) 

Spring 

Seat Retainer 

Seat 

O - ring 

O - ring Retainer 

B 






the body cavity. 

5 


API SPECIFICATION 6D 

Basic Design 

TM 

ALFA 

STANDARD FACE-TO FACE DIMENSION API SPEC. 6D ; ASME B16.10 

FLANGE STANDARD ASME B 16. 5 ; ASME B16.47 ; MSS SP - 44 

Maximum Operating Pressure Ratings for Standard Flanged End and Standard Weld End Valves, Carbon Steel Body 

Materials (refer to Materials Listed in Table 3.1, API Spec. 6D) 

Two Piece Design Construction 

Flange X Flange Flanged X Butt Weld Butt Weld X Butt Weld 

API SPEC. 6D 

Class 

Test Pressure, (psig) 

MAX. OPERATING PRESSURE RATING, (psig) at TEMPERATURE 0 F 

Seat Test Shell Test 

-20 to 100 150 200 250 

150 275 270 260 245 300 425 

300 720 705 675 665 800 1100 

400 960 940 900 885 1060 1450 

600 1440 1415 1350 1330 1600 2175 

900 2160 2120 2025 1995 2400 3250 

1500 3600 3540 3375 3325 4000 5400 

2500 6000 5895 5625 5545 6600 9000 

6 


ALFA STANDARDS 

Basic Design 

TM 

ALFA 

Standards Production Range Table 

Pressure Ratings 

Body Materials 

Seat Materials 

Flange Standards & Nominal Sizes 

and Bore Type 

CLASS 

150 300 400 600 

Carbon Steel 

Alloy Steel 

Stainless Steel 

R ; E R ; E 

ASME 150 ASME 300 

900 

: A216 Gr. WCB, WCC ; A352 Gr. LCB, LCC, LC1, LC2, LC3 

: A217 Gr. WC1, WC5, WC6, WC9, C5, C12 

: A351 Gr. CF8, CF8M, CF3, CF3M, CF8C 

R ; E R ; E R ; E R ; N 

ASME 400 

ASME 600 

ASME 900 

1500 2500 

ASME 1500 

N 

ASME 2500 

mm 

inch 

Bore 

Type 

DESIGN 

ALFA 

FIG. No. 

DESIGN 

ALFA 

FIG. No. 

DESIGN 

ALFA 

FIG. No. 

DESIGN 

ALFA 

FIG. No. 

DESIGN 

ALFA 

FIG. No. 

DESIGN 

ALFA 

FIG. No. 

DESIGN 

ALFA 

FIG. No. 

15 X 15 1/2 X 1/2 Full 

20 X 20 3/4 X 3/4 Full 

AB01F2LF 

AB03F2LF 

AB09F2LF 

AB15F2LF 

AB25F2L/TF 

25 X 25 1 X 1 Full 

AB04F2LF 

AB06F2LF 

32 X 32 1 1/4 X 1 1/4 Full 

40 X 40 1 1/2 X 1 1/2 Full AB01F2LF AB03F2LF AB09F2L/TF AB15F2L/TF AB25F2L/TF 

50 X 50 2 X 2 Full 

65 X 65 2 1/2 X 2 1/2 Full 

80 X 50 3 X 2 Reduce 

AB06F2L/TF 

80 X 80 3 X 3 Full 

100 X 80 4 X 3 Reduce 

100 X 100 4 X 4 Full 

125 X 125 5 X 5 Full 

AB01F2L/TF 

AB03F2L/TF 

AB04F2L/TF 

AB25F2TF 

150 X 100 6 X 4 Reduce 

150 X 150 6 X 6 Full 

200 X 150 8 X 6 Reduce 

200 X 200 8 X 8 Full 

AB09F2TF 

AB15F2TF 

250 X 200 10 X 8 Reduce 

250 X 250 10 X 10 Full 

300 X 250 12 X 10 Reduce 

AB06F2TF 

350 X 300 14 X 12 Reduce 

350 X 350 14 X 14 Full 

400 X 350 16 X 14 Reduce 

400 X 400 16 X 16 Full 

AB01F2TF 

AB03F2TF 

AB04F2TF 

450 X 400 18 X 16 Reduce 

450 X 450 18 X 18 Full 

500 X 450 20 X 18 Reduce 

500 X 500 20 X 20 Full 

550 X 500 22 X 20 Reduce AB01F3TF AB03F3TF AB04F3TF AB06F3TF AB09F3TF AB15F3TF 

600 X 500 24 X 20 Reduce AB01F2TF AB03F2TF AB04F2TF AB06F2TF AB09F2TF AB15F2TF 

600 X 600 24 X 24 Full AB09F3TF AB15F3TF 

650 X 600 26 X 24 Reduce 

650 X 650 26 X 26 Full 

700 X 600 28 X 24 Reduce 

AB04F3TF 

AB06F3TF 

700 X 700 28 X 28 Full 

AB01F3TF 

AB03F3TF 

750 X 600 30 X 24 Reduce 

750 X 750 30 X 30 Full 

800 X 800 32 X 32 Full 

900 X 750 36 X 30 Reduce 

ABBREVIATION AND LEGEND : 

AB : ALFA BALL VALVES 

BORE TYPE 


SEAT MATERIAL 

ANSI CLASS 

F : FULL PORT 

F : FLANGED RAISED FACE R : REINFORCED PTFE SEAT 

01 : CLASS 150 

R : REDUCE PORT 

P : FLANGED FLAT FACE 

E : ELASTOMERIC ie., EPDM 

03 : CLASS 300 


R : FLANGED RING JOINT 

N : NYLON SEAT 

04 : CLASS 400 

2 : END ENTRY - 2 PIECES DESIGN 

B : BUTT WELD 

LEGEND 

06 : CLASS 600 

3 : END ENTRY - 3 PIECES DESIGN S : SOCKET WELD END 

: FLOATING 

09 : CLASS 900 

DESIGN TYPE 

T : THREADED END 

: TRUNNION 

15 : CLASS 1500 

L : FLOATING TYPE 

C : COMBINATION 

: 2 PIECES DESIGN 

25 : CLASS 2500 T : TRUNNION TYPE 

: 3 PIECES DESIGN 

NOTE : Detail information of ordering ALFA Ball Valves refer to "How to Order ALFA Ball Valves". 

7 


MATERIAL OF MAIN PARTS 

FOR VALVE PART 

Range Class 150 To 1500 

TM 

ALFA 

DESCRIPTION 

ALFA STANDARD 

(CARBON STEEL BALL) 

ALFA STANDARD 

(STAINLESS STEEL BALL) 

ALFA STANDARD 

SERVICE FOR LOW TEMP.(-46 0C) 

MATERIAL CODE 

WCB BODY / WCB HCr BALL 

WCB BODY / SS CF8 BALL 

LCB BODY / LCB HCr BALL 

BODY 




BODY CAP / END 




BALL 

ASTM A216 Gr. WCB HCr 


ASTM A352 Gr. LCB HCr 

SEAT RETAINER 

ASTM A105 Zn Plated 


ASTM A352 Gr. LF2 Zn Plated 

O-RING 

NBR or VITON 

NBR or VITON 

Low Temp. NBR or VITON 

SPRING 

SUS329J1or INCONEL X-750 



STEM 

ASTM A276 Tp. 410 HCr 



LOWER STEM 

ASTM A276 Tp. 410 

ASTM A276 Tp. 410 

ASTM A276 Tp. 403 

STUD 



ASTM A320 Gr. L7 

GLAND 



ASTM A352 Gr. LF2 Zn Plated 

GLAND BOLT 




LOWER COVER 

ASTM A105 

ASTM A105 


KEY 

S45C-H or AISI 1040 



STEAM BEARING 

METAL BACKED TFE 



SEAT 

REINFORCED PTFE 



NUT 



ASTM A194 Gr. 4 

GLAND PACKING 

NBR 

NBR 

Low Temp. NBR 

DESCRIPTION 

(STAINLESS STEEL) 

TRIM 304 TRIM 316 

NACE 

TRIM 

MR 0175 

ENP 

MATERIAL CODE CF8 CF8M WCB-SF WCB-SS WCB-NE-N WCB-NE 

BODY A351 Gr.CF8 A351 Gr.CF8M A216 Gr. WCB A216 Gr. WCB A216 Gr. WCB A216 Gr. WCB 

BODY CAP / END A351 Gr.CF8 A351 Gr.CF8M A216 Gr. WCB A216 Gr. WCB A216 Gr. WCB A216 Gr. WCB 

BALL A351 Gr.CF8 A351 Gr.CF8M A351 Gr.CF8 A351 Gr.CF8M A216 Gr. WCB HCr A216 Gr. WCB ENP 

SEAT RETAINER A182 Gr. F304 A182 Gr. F316 A182 Gr. F304 A182 Gr. F316 A105 Zn Plated A105 ENP 

O-RING VITON VITON VITON VITON VITON VITON 

SPRING SUS329J1or INC. X-750 SUS329J1or INC. X-750 SUS329J1or INC. X-750 SUS329J1or INC. X-750 SUS329J1or INC. X-750 SUS329J1or INC. X-750 

STEM A276 Tp.304 A276 Tp.316 A276 Tp.304 A276 Tp.316 A276 Tp. 410 HCr A276 Tp. 410 ENP 

LOWER STEM A276 Tp.304 A276 Tp.316 A276 Tp.304 A276 Tp.316 A276 Tp. 410 A276 Tp. 410 

STUD A193 Gr B8 A193 Gr B8 A193 Gr. B7 A193 Gr. B7 A193 Gr. B7M A193 Gr. B7 

GLAND 304 SS 316 SS A105 Zn Plated A105 Zn Plated A105 Zn Plated A105 Zn Plated 

GLAND BOLT A193 Gr B8 A193 Gr B8 A193 Gr. B7 A193 Gr. B7 A193 Gr. B7M A193 Gr. B7 

LOWER COVER 304 SS 316 SS A105 A105 A105 A105 

KEY 304 SS 316 SS S45C-H or AISI 1040 S45C-H or AISI 1040 S45C-H or AISI 1040 S45C-H or AISI 1040 

STEAM BEARING METAL BACKED TFE METAL BACKED TFE METAL BACKED TFE METAL BACKED TFE METAL BACKED TFE METAL BACKED TFE 

SEAT REINFORCED PTFE REINFORCED PTFE REINFORCED PTFE REINFORCED PTFE REINFORCED PTFE REINFORCED PTFE 

NUT A194 Gr 8 A194 Gr 8 A194 Gr. 2H A194 Gr. 2H A194 Gr. 2HM A194 Gr. 2H 

GLAND PACKING TFE/ASBESTOS TFE/ASBESTOS VITON VITON VITON VITON 

Hcr : HARD CHROMIUM PLATING 

Zn : ZINC PLATING 

PTFE:TFE : REINFORCED TFE 

E.N.P : ELECTROLESS NICKEL PLATING 

8 


Two-Pice Body Type 

TM 

ALFA 

No 

Part Name 

No 

Part Name 

1 Body 

2 Body Cap 

3 Lower Cover 

4 Ball 

5 Seat 

6 Stem 

7 Lower Stem 



10 O-Ring 


24 Sealant Fitting 

25 Drain Plug 

26 Key 

27 Gear Case 

28 Stopper Bolt 

29 Plug 

30 O-Ring 

31 Sector Gear 

32 O-Ring 

33 Gear Cover 

34 Bolt 

34 

36 

33 

32 

31 

30 

38 

37 

35 

39 

40 

41 

42 

40 

39 

12 Lower Stem Bearing 


14 Thrust Washer 

15 O-Ring 

16 Gland 

35 Connector 

36 Key 

37 Indicator 

38 Bolt 

39 O-Ring 

28 

27 43 

16 17 

29 

45 

44 

17 Gland Bolt 

18 Spring 

19 O-Ring 

20 O-Ring 

40 Bearing 

41 Spring Pin 

42 Worm 

43 Shaft 

15 

13 

14 


44 Key 

22 Stud-Nut 

23 Stud-Nut 

45 Hand Wheel 

6 

11 

26 

23 

24 

1 

25 

24 

10 

12 

18 

19 

7 

9 

8 

21 

5 

3 

4 

23 

5 

18 

8 

19 

20 

2 

21 

9 


Class 150 

TM 

ALFA 

"Ball Valves of stainless steel body materials (A351 Gr.CF8 and A351 Gr. CF8M) are used for large-diameter 

piping’s in general processes. Their body’s are split and adopt high-intensity stud connection which is 

advantageous to the valve's maintenance. They also have sufficient strength and stiffness to withstand of 

piping stresses and have piston effect seat construction so their sealings are very safe and tight for the 

sliding surfaces on which the ball revolves. Bearings material made mainly of TFE are used, in order to 

ensure self-lubrication and smooth operation over a long period of time." 

Two Piece Body 

10 


Class 150 

TM 

ALFA 

W 1 

Class 150 ( Stainless Steel Material) 

Nominal Size : 150 ~ 900 mm (6 in ~ 36 in) 

Flange : ANSI Class 150 


H 2 

PRINCIPAL MATERIAL 

L 

H 1 

Material Code 

Parts 

CF8 CF8M 

Body CF8 CF8M 

F W 1 

W 2 

Three Piece Body 

L 

Ball CF8 CF8M 

Stem 304 316 

T.F.E 

Seat 

REINFORCED T.F.E 

F 

H 2 

H 1 

W 1 

W 2 

L 


AB01F2TF 

AB01R2TF 

AB01F3TF 

AB01R3TF 

- Class 150, Full Bore, Split Body 2 Pieces Design, Trunnion Mounted, Raised Face Flanged Ends 

- Class 150, Reduced Bore, Split Body 2 Pieces Design, Trunnion Mounted, Raised Face Flanged Ends 



Dimension and Weights 

Design 

2 Pieces Body 

3 Pieces Body 

Nominal Size Ball Bore 

L (RF) 

H 1 

in mm in mm 

Long Pattern 

Short Pattern 

in mm in mm 

in 

H 2 

in mm in mm in 

W 1 W 2 F 

mm in mm 

6"X5" 150x125 5 127 15,50 394 10,50 267 8,3 210 12,2 310 3,3 85 17,7 450 7,1 180 70 

6"X6" 150x150 6 152 15,50 394 10,50 267 10,6 270 13,8 350 3,3 85 17,7 450 7,1 180 85 

8"X6" 200x150 6 152 18,00 457 11,50 292 10,6 270 13,8 350 3,3 85 17,7 450 7,1 180 90 

8"X8" 200x200 8 203 18,00 457 11,50 292 12,2 310 15,7 400 4,6 116 23,6 600 13,8 350 120 

10"X8" 250x200 8 203 21,00 533 13,00 330 12,2 310 15,7 400 4,6 116 23,6 600 13,8 350 190 

10"X10" 250X250 10 254 21,00 533 13,00 330 13,2 335 19,5 495 4,6 116 23,6 600 13,8 350 240 

12"X10 300X250 10 254 24,00 610 14,00 356 13,2 335 19,5 495 4,6 116 23,6 600 13,8 350 295 

12"X12" 300X300 12 305 24,00 610 14,00 356 15,2 385 22,8 580 6,7 171 31,5 800 16,5 420 390 

14"X12" 350X300 12 305 27,00 686 15,00 381 15,2 385 22,8 580 6,7 171 31,5 800 16,5 420 470 

14"X14" 350X350 13.25 337 27,00 686 15,00 381 16,9 430 24,6 625 6,7 171 31,5 800 16,5 420 510 

16"X14" 400X350 13.25 337 30,00 762 16,00 406 16,9 430 24,6 625 6,7 171 31,5 800 16,5 420 590 

16"X16" 400X400 15.25 387 30,00 762 16,00 406 18,5 470 28,3 720 10,1 257 31,5 800 15,7 400 750 

18"X16" 450X400 15.25 387 34,00 864 - - 18,5 470 28,3 720 10,1 257 31,5 800 15,7 400 790 

18"X18" 450X450 17.25 438 34,00 864 - - 20,4 518 30,2 767 10,1 257 31,5 800 15,7 400 980 

20"X18" 500X450 17.25 438 36,00 914 - - 20,4 518 30,2 767 10,1 257 31,5 800 15,7 400 1030 

20"X20" 500X500 19.25 489 36,00 914 - - 23,2 590 33,1 840 10,1 257 31,5 800 15,7 400 1190 

24"X20" 600X500 19.25 489 40,00 1016 - - 23,2 590 33,1 840 10,1 257 31,5 800 15,7 400 1570 

22"X22" 550X550 21.25 540 40,00 1016 - - 25,0 635 39,0 990 5,9 150 31,5 800 16,1 410 1700 

24"X24" 600X600 23.25 591 42,00 1067 - - 27,6 700 41,3 1050 5,9 150 31,5 800 16,1 410 2100 

26"X26" 650X650 25 635 45,00 1143 - - 28,5 725 42,9 1090 3,3 83 31,5 800 25,6 650 2500 

28"X24" 700X600 23.25 591 49,00 1245 - - 27,6 700 41,3 1050 5,9 150 31,5 800 16,1 410 2400 

28"X28" 700X700 27 686 49,00 1245 - - 30,7 780 45,3 1150 3,3 83 31,5 800 25,6 650 3000 

30"X24" 750X600 23.25 591 51,00 1295 - - 27,6 700 41,3 1050 5,9 150 31,5 800 16,1 410 2700 

30"X30" 750X750 29 737 51,00 1295 - - 32,5 825 47,6 1210 3,3 83 31,5 800 25,6 650 3500 

36"X30" 900X750 29 737 60,00 1524 - - 32,5 825 47,6 1210 3,3 83 31,5 800 25,6 650 4000 

mm 

Wgt 

(Kg) 

11 


CARBON STEEL VALVES 

Class 150,300,600,900,1500 

TM 

ALFA 

Ball Valves of carbon steel bodies are used for 

pipelines. Split Body Construction Design 

(either two-piece or three piece) bolting with 

high intensity stud connection. They also have 

sufficient strength and stiffness to withstand 

piping stresses, and piston effect seat 

construction so their sealing are very safe and 

tight. For the sliding surfaces on which the ball 

revolves, bearings made mainly of TFE are 

used in order to ensure self-lubrication and 

smooth operation over a long period of time. 

TWO PIECE BODY 

THREE PIECE BODY 

12 


CAST STEEL 

BALL VALVE PARTS 

Two-Piece Body Type 

TM 

ALFA 

No 

Part Name 

No 

Part Name 

1 Body 

2 Body Cap 

3 Lower Cover 

4 Ball 

5 Seat 

6 Stem 

7 Lower Stem 



10 O-Ring 



25 Drain Plug 

26 Key 

27 Gear Case 

28 Stopper Bolt 

29 Plug 

30 O-Ring 

31 Sector Gear 

32 O-Ring 

33 Gear Cover 

34 Bolt 

34 

36 

33 

32 

31 

30 

38 

37 

35 

39 

40 

41 

42 

40 

39 

12 Lower Stem Bearing 



15 O-Ring 

16 Gland 

35 Connector 

36 Key 

37 Indicator 

38 Bolt 

39 O-Ring 

28 

27 43 

16 17 

29 

45 

44 

17 Gland Bolt 

18 Spring 

19 O-Ring 

20 O-Ring 

40 Bearing 

41 Spring Pin 

42 Worm 

43 Shaft 

15 

13 

14 


44 Key 

22 Stud-Nut 

23 Stud-Nut 

45 Hand Wheel 

6 

11 

26 

23 

24 

1 

25 

24 

10 

12 

18 

19 

7 

9 

8 

21 

5 

3 

4 

23 

5 

18 

8 

19 

20 

2 

21 

13 


CAST STEEL 

BALL VALVE PARTS 

Three- Piece Body Type 

TM 

ALFA 

25 

24 

2 

6 

31 

20 

28 

15 

19 

17 

18 

11 

16 

7 

9 

1 

20 

21 22 4 

5 

30 

3 

30 

5 

4 

No Part Name 

1 Body 

2 Body Cap 

3 Ball 


5 Seat 

6 Spring 

7 Stem 

8 Lower Stem 





13 Lower Cover 

14 Key 


16 Key 

17 O-ring 

18 O-ring 

19 Back up Ring 

20 O-Ring 

21 O-Ring 

22 O-Ring 

23 O-Ring 

24 Stud 

25 Nut 

26 Stud 

27 Nut 

28 Head Bolt 

29 Bolt 

30 Outer Ring 


32 O-Ring 

32 

9 

8 

22 

21 

6 

31 

10 

13 

27 

26 

12 

2 

24 

25 

14 



CLASS 150 (Carbon Steel Material) 

Nominal size : 150 mm - 900 mm (6 in - 36 in) 

Flange : ANSI CLASS 300 

Class 150 


TM 

ALFA 

W 1 

H 2 

F W 1 

W 2 

L 

H 1 

L 



Parts 

General Use 

Material Code 

Low Temperature 


W 1 

W 2 

Body 

WCB 

LCB 

H 2 

Ball 

See main parts material table 

F 

Stem 

Seat 

410 HCr 

T.F.E 


403 HCr 

T.F.E 


L 

H 1 

AB03F2TF 

AB03R2TF 

AB03F3TF 

AB03R3TF 






CLASS 150 (Carbon Steel) Dimension and Weights 

Design 

2 Pieces Body 

3 Pieces Body 


L (RF) 

H 1 H 2 W 1 

in mm in 

mm 

Long Pattern Short Pattern 

in mm in mm 

in mm in mm 

6"X5" 150x125 5 127 15,88 403 10,50 267 7,9 200 12,2 310 3,3 85 17,7 450 7,1 180 82 

6"X6" 150x150 6 152 15,88 403 10,50 267 10,2 260 13,4 340 3,3 85 17,7 450 7,1 180 110 

8"X6" 200x150 6 152 19,75 502 11,50 292 10,2 260 13,4 340 3,3 85 17,7 450 7,1 180 145 

8"X8" 200x200 8 203 19,75 502 11,50 292 11,8 300 15,3 389 4,6 116 23,6 600 13,8 350 180 

10"X8" 250x200 8 203 22,38 568 13,00 330 11,8 300 15,3 389 4,6 116 23,6 600 13,8 350 285 

10"X10" 250X250 10 254 22,38 568 13,00 330 12,8 325 15,9 405 4,6 116 23,6 600 13,8 350 365 

12"X10 300X250 10 254 25,50 648 14,00 356 12,8 325 15,9 405 4,6 116 23,6 600 13,8 350 380 

12"X12" 300X300 12 305 25,50 648 14,00 356 14,4 365 17,9 455 6,7 171 31,5 800 16,5 420 535 

14"X12" 350X300 12 305 30,00 762 15,00 381 14,4 365 17,9 455 6,7 171 31,5 800 16,5 420 580 

14"X14" 350X350 13.25 337 30,00 762 15,00 381 15,7 400 19,3 490 6,7 171 31,5 800 16,5 420 740 

16"X14" 400X350 13.25 337 33,00 838 16,00 406 15,7 400 19,3 490 6,7 171 31,5 800 16,5 420 780 

16"X16" 400X400 15.25 387 33,00 838 16,00 406 17,3 440 21,7 550 10,1 257 31,5 800 15,7 400 1030 

18"X16" 450X400 15.25 387 36,00 914 - - 17,3 440 21,7 550 10,1 257 31,5 800 15,7 400 1010 

18"X18" 450X450 17.25 438 36,00 914 - - 19,7 500 24,4 620 10,1 257 31,5 800 15,7 400 1280 

20"X18" 500X450 17.25 438 39,00 991 - - 19,7 500 24,4 620 10,1 257 31,5 800 15,7 400 1360 

20"X20" 500X500 19.25 489 39,00 991 - - 21,9 555 26,8 680 10,1 257 31,5 800 15,7 400 1540 

24"X20" 600X500 19.25 489 45,00 1143 - - 21,9 555 26,8 680 10,1 257 31,5 800 15,7 400 1950 

22"X22" 550X550 21.25 540 43,00 1092 - - 25,0 635 31,7 806 5,9 150 31,5 800 16,1 410 2050 

24"X24" 600X600 23.25 591 45,00 1143 - - 27,6 700 34,3 870 5,9 150 31,5 800 16,1 410 2600 

26"X26" 650X650 25 635 49,00 1245 - - 28,3 720 35,0 890 5,9 150 31,5 800 16,1 410 3300 

28"X24" 700X600 23.25 591 53,00 1346 - - 27,6 700 34,3 870 5,9 150 31,5 800 16,1 410 3100 

28"X28" 700X700 27 686 53,00 1346 - - 30,7 780 37,6 955 3,3 83 31,5 800 25,6 650 3900 

30"X24" 750X600 23.25 591 55,00 1397 - - 27,6 700 34,3 870 5,9 150 31,5 800 16,1 410 3500 

30"X30" 750X750 29 737 55,00 1397 - - 32,5 825 39,8 1010 3,3 83 31,5 800 25,6 650 4800 

36"X30" 900X750 29 737 68,00 1727 - - 32,5 825 39,8 1010 3,3 83 31,5 800 25,6 650 5400 

The Dimension of Class 300 Carbon Steel as same as Class 300 Stainless Steel, except Weight. 

15 

in 

mm 

in 

W 2 

mm 

in 

F 

mm 

Wgt 

(Kg) 



Class 300 

TM 

ALFA 

CLASS 300 (Carbon Steel Material) 

Nominal size : 150 mm - 900 mm (6 in - 36 in) 

Flange : ANSI CLASS 300 


W 1 

H 2 

F W 1 

W 2 

L 

H 1 

L 


Material Code 

Parts 

General Use 

Low Temperature 


W 1 

W 2 

Body 

WCB 

LCB 

Ball 

See main parts material table 

H 2 

Stem 

410 HCr 

403 HCr 

F 

H 1 

T.F.E 

T.F.E 

Seat 

REINFORCED T.F.E REINFORCED T.F.E 

L 

AB03F2TF 

AB03R2TF 

AB03F3TF 

AB03R3TF 






CLASS 300 (Carbon Steel) Dimension Table 

Design 

2 Pieces Body 

3 Pieces Body 


L (RF) 

H 1 H 2 W 1 

in mm in 

mm 

Long Pattern Short Pattern 

in mm in mm 

in mm in mm 

6"X5" 150x125 5 127 15,88 403 10,50 267 7,9 200 12,2 310 3,3 85 17,7 450 7,1 180 82 

6"X6" 150x150 6 152 15,88 403 10,50 267 10,2 260 13,4 340 3,3 85 17,7 450 7,1 180 110 

8"X6" 200x150 6 152 19,75 502 11,50 292 10,2 260 13,4 340 3,3 85 17,7 450 7,1 180 145 

8"X8" 200x200 8 203 19,75 502 11,50 292 11,8 300 15,3 389 4,6 116 23,6 600 13,8 350 180 

10"X8" 250x200 8 203 22,38 568 13,00 330 11,8 300 15,3 389 4,6 116 23,6 600 13,8 350 285 

10"X10" 250X250 10 254 22,38 568 13,00 330 12,8 325 15,9 405 4,6 116 23,6 600 13,8 350 365 

12"X10 300X250 10 254 25,50 648 14,00 356 12,8 325 15,9 405 4,6 116 23,6 600 13,8 350 380 

12"X12" 300X300 12 305 25,50 648 14,00 356 14,4 365 17,9 455 6,7 171 31,5 800 16,5 420 535 

14"X12" 350X300 12 305 30,00 762 15,00 381 14,4 365 17,9 455 6,7 171 31,5 800 16,5 420 580 

14"X14" 350X350 13.25 337 30,00 762 15,00 381 15,7 400 19,3 490 6,7 171 31,5 800 16,5 420 740 

16"X14" 400X350 13.25 337 33,00 838 16,00 406 15,7 400 19,3 490 6,7 171 31,5 800 16,5 420 780 

16"X16" 400X400 15.25 387 33,00 838 16,00 406 17,3 440 21,7 550 10,1 257 31,5 800 15,7 400 1030 

18"X16" 450X400 15.25 387 36,00 914 - - 17,3 440 21,7 550 10,1 257 31,5 800 15,7 400 1010 

18"X18" 450X450 17.25 438 36,00 914 - - 19,7 500 24,4 620 10,1 257 31,5 800 15,7 400 1280 

20"X18" 500X450 17.25 438 39,00 991 - - 19,7 500 24,4 620 10,1 257 31,5 800 15,7 400 1360 

20"X20" 500X500 19.25 489 39,00 991 - - 21,9 555 26,8 680 10,1 257 31,5 800 15,7 400 1540 

24"X20" 600X500 19.25 489 45,00 1143 - - 21,9 555 26,8 680 10,1 257 31,5 800 15,7 400 1950 

22"X22" 550X550 21.25 540 43,00 1092 - - 25,0 635 31,7 806 5,9 150 31,5 800 16,1 410 2050 

24"X24" 600X600 23.25 591 45,00 1143 - - 27,6 700 34,3 870 5,9 150 31,5 800 16,1 410 2600 

26"X26" 650X650 25 635 49,00 1245 - - 28,3 720 35,0 890 5,9 150 31,5 800 16,1 410 3300 

28"X24" 700X600 23.25 591 53,00 1346 - - 27,6 700 34,3 870 5,9 150 31,5 800 16,1 410 3100 

28"X28" 700X700 27 686 53,00 1346 - - 30,7 780 37,6 955 3,3 83 31,5 800 25,6 650 3900 

30"X24" 750X600 23.25 591 55,00 1397 - - 27,6 700 34,3 870 5,9 150 31,5 800 16,1 410 3500 

30"X30" 750X750 29 737 55,00 1397 - - 32,5 825 39,8 1010 3,3 83 31,5 800 25,6 650 4800 

36"X30" 900X750 29 737 68,00 1727 - - 32,5 825 39,8 1010 3,3 83 31,5 800 25,6 650 5400 

The Dimension of Class 300 Carbon Steel as same as Class 300 Stainless Steel, except Weight. 

16 

in 

mm 

in 

W 2 

mm 

in 

F 

mm 

Wgt 

(Kg) 



SIZE 

FIG. No. 

08" 

A 

B 

06 F 2 T 


- GO - 

F 

Valve 

Body 

Connec - 

Pressure Bore 

Design 


Configu - 

tion 

Rating Type 

Type 

- 

cation 

ration 

Type 

Body 

Material 

- 

Trim 

Material 

Seat 

Material 

Design 

- Opera- 

- 

tor 

Modification 



VALVE SIZE 

BRAND 

VALVE 



0Q 1/4" 


0H 1/2" 


0T 3/4" 


01 1" 


1H 1 1/2" 


02 2" 



2H 2 1/2" 


03 3" 

04 4" J1 

JIS 10K 

- 

- J2 

JIS 20K 

36 36" 

J4 

JIS 40K 

J6 

JIS 63K 

F 

R 

S 

BORE TYPE 

FULL PORT 

REDUCED 

PORT 

SPECIAL 

PORT 

WCB 

C5 

WC6 

WC9 

C12 

LCB 

LCC 

LC3 

CF8 

CF8M 

CF3 

CF3M 

CF8C 

CN7M 

Mo 

CD3 

CD3MW 

INC 

TIN 


1 WELDED BODY 




















NICKEL ALLOY 

TITANIUM 

BODY MATERIAL 

L 

T 

DESIGN TYPE 

FLOATING TYPE 

TRUNNION TYPE 

TRIM MATERIAL 

F1 


F6 


CODE BALL 

F6N 


SF 

304 SS 

F9 


SS 

316 SS 

F11 


ST 

317 SS 

F22 



A10 

ASTM A105 


LF2 



304 





316 




AT 

Alloy 20 

317 


ML 

Monel 


IL 

Inconnel 

F321 


TT Titanium 

F347 




SE 

Stellited 

F57 


EN 

ENP 

SP 



P 

F 

R 

B 

S 

T 

C 

A 


FLAT FACE 

RAISED FACE 

RING JOINT 

BUTT WELD 

SOCKET WELD 

SCREWED 

COMBINATION 

SPECIAL 

STEM 

304 SS 

316 SS 

317 SS 

316 SS 

304 SS 

410 SS 

316 SS 

304 SS 

410 SS 

Alloy 20 

Monel 

Inconnel 

Titanium 

Hastelloy C 

Stellited 

ENP 


S E A T 



F 

PTF E 


N 

N 

N ylo n 


V 

Vito n 

B 

Buna -N 

E 

EPDM 

H 

UH M W PE 


P 

PEEK 

S 


H W 

Ha nd W he el 

SX 


L O 

G O 

H O 




N 

B 

S 






M O 


F 


CW 


17 


ALFATM 

BUTTERFLY VALVES 


17 

CONTENTS 

PRODUCT OVERVIEW 


ALFA BUTTERFLY VALVES 

TM 

ALFA 

l 

l 

l 

l 

CLASS 125 

CLASS 150 

CLASS 300 

CLASS 600 

HOW TO ORDER ALFA BUTTERFLY VALVES 

H 

12 

13 

14 

15 

16 

11 

K P.C.D 

L2 

M2 No OF HOLES 


Products Overview 

Butterfly Valves 

TM 

ALFA 

This product was our long striving results. On the one hand we referred to today's advanced manufacturing 

technologies of developed countries, and on the other hand, we devoted ourselves to the research and 

development with many years of comprehensive experiences. As advantages, it posses two way sealed 

zero leakage & is especially suitable for high temperature services. It's sealing system applied Three 

Direction Eccentric with both of cone and ball shaped faces, of which applied gradually advancement in 

plane plus turning to avoid frictions between sealing pairs. It's available for different type of sealing faces to 

meet a wide range of services. 

It features simple and compact construction, light in weight, reliable sealing, minimized flow resistance and 

operating torque, & quick on-off operation. 

Specification 

Design Type : Wafer, Semi Lug, Lug & Flange 

Basic Design Compliance : API Std. 609, MSS SP-67, MSS SP-68, BS 5155 

Face-to-Face Dimension : API Std. 609, MSS SP-44, ANSI B16.5 

Pressure Test : API Standard 598 

Costumer Option 

Body Material : Carbon Steel (ASTM A216 Gr. WCB, ASTM A352 Gr. LCB ; LCC) 

Alloy Steel (ASTM A217 Gr. WC5 ; WC6 ; WC9 ; C5 ; C12) 

Stainless Steel ( ASTM A351 Gr. CF3 ; CF8 ; CF3M ; CF8M ; CF8C) 

Gray Cast Iron (ASTM A126) 

Ductile Cast Iron (ASTM A395, ASTM A536) 

Bronze (ASTM B61, ASTM B62) 

Operation : Lever, worm-gear, electric, pneumatic, hydraulic, electric-hydraulic 

Connection Type : ASME B16.5 for NPS 2”-24” Flat Face ; Raised Face ; Ring Tap Joint 

ASME B16.47 Series or MSS Sp-44 for NPS 26” and Larger : Raised Face ; 

Ring Tap Joint 



ALFA BUTTERFLY VALVE TYPES 

Butterfly Valves 

TM 

ALFA 

Do 

Do 

H 

NPS 

Lw 

L1 

BUTT WELDED BUTTERFLY VALVE 

METAL SEATED BUTTERFLY VALVE 

ALFA BUTTERFLY VALVE TYPES 

Products 

Do 

H 

L 

FLANGED BUTTERFLY VALVE 

WITH PNEUMATIC ACTUATOR 

L 


WITH GEAR OPERATOR 



Class 125 

F 

A 

11 

H 

12 

13 

14 

15 

16 

17 

3 

6 

8 

1 

18 

9 

7 

5 

2 

4 

B 

K P.C.D 

L2 


10 

C 

ALFA Figure No 

AF0QWT 

ALFA VALVE - BUTTERFLY - ANSI CLASS 125 - WAFER TYPE 

AF0QWS 

ALFA VALVE - BUTTERFLY - ANSI CLASS 125 - WAFER SEMI LUG TYPE 

AF0QWL 

ALFA VALVE - BUTTERFLY - ANSI CLASS 125 - WAFER LUG TYPE 

AF0QDP 

ALFA VALVE - BUTTERFLY - ANSI CLASS 125 - DOUBLE FLANGED FLAT FACE TYPE 

AF0QDF 

ALFA VALVE - BUTTERFLY - ANSI CLASS 125 - DOUBLE FLANGED RAISED FACE TYPE 

AF0QDW 

ALFA VALVE - BUTTERFLY - ANSI CLASS 125 - BUTT WELD TYPE 

Dimension and Weghts ANSI Class 125 

Size (NPS) 

Face-to-Face 

Wafer / Lug 

Face-to-Face 

Flanged 

Face-to-Face 

Butt Weld 

Wheel 

Diameter 

Height 

Weight 

Wafer Lug Flanged 

(L 1 ) 

(L) (Lw) (Do) 

(Ww) (Wl) (Wf) 

in mm in mm in mm in mm in mm in mm kg kg kg 

2 50 1,69 43 4,25 108 5,91 150 6,3 160 7,6 193 2,5 3,1 7,0 

2 1/2 65 1,81 46 4,41 112 6,69 170 6,3 160 8,1 207 3,2 3,9 8,0 

3 80 1,89 48 4,49 114 7,09 180 6,3 160 8,4 213 3,5 4,2 10,0 

4 100 2,13 54 5,00 127 7,48 190 6,3 160 9,1 232 4,5 5,0 12,0 

5 125 2,20 56 5,51 140 7,87 200 6,3 160 9,6 245 6,2 7,5 15,0 

6 150 2,24 57 5,51 140 8,27 210 6,3 160 10,2 258 8,6 9,4 21,0 

8 200 2,52 64 5,98 152 9,06 230 9,4 240 12,0 305 13,2 14,0 30,0 

10 250 2,80 71 6,50 165 9,84 250 9,4 240 13,3 337 19,5 22,0 47,0 

12 300 3,19 81 7,01 178 10,63 270 9,4 240 15,0 382 31,5 35,0 63,0 

14 350 3,62 92 7,48 190 11,42 290 9,4 240 16,3 413 39,5 46,0 92,0 

16 400 4,02 102 8,50 216 12,20 310 12,6 320 17,8 451 73,0 81,0 125,0 

18 450 4,49 114 8,74 222 12,99 330 12,6 320 18,6 473 88,0 94,0 146,0 

20 500 5,00 127 9,02 229 13,78 350 12,6 320 21,4 544 117,0 129,0 194,0 

24 600 6,06 154 10,51 267 15,35 390 19,7 500 24,9 632 176,0 191,0 295,0 

28 700 9,02 229 11,50 292 16,93 430 19,7 500 27,2 690 294,0 315,0 372,0 

32 800 9,49 241 12,52 318 18,50 470 19,7 500 29,1 738 344,0 362,0 496,0 

36 900 9,49 241 12,99 330 20,08 510 19,7 500 36,4 925 472,0 493,0 650,0 

40 1000 11,81 300 16,14 410 21,65 550 19,7 500 40,7 1035 631,0 658,0 892,0 

44 1100 - - 17,48 444 - - 19,7 500 44,9 1140 840,0 868,0 1520,0 

48 1200 13,78 350 18,50 470 24,80 630 19,7 500 45,5 1155 1495,0 1560,0 1992,0 

56 1400 15,35 390 20,87 530 27,95 710 23,6 600 53,1 1350 1890,0 2010,0 2589,0 

60 1500 - - 22,24 565 - - 23,6 600 55,1 1400 2385,0 2496,0 3000,0 

64 1600 17,32 440 23,62 600 31,10 790 23,6 600 58,1 1475 2990,0 3205,0 - 

72 1800 19,29 490 26,38 670 34,25 870 23,6 600 65,7 1670 4400,0 4680,0 - 

(H) 




P N 1 0 / P N 1 6 

TM 

ALFA 

A 

H 

12 

13 

14 

15 

3 

6 

8 

1 

F 

11 

16 

17 

18 

9 

7 

5 

2 

4 

B 

K P.C.D 

L2 


10 

AF01WT 

AF01WS 

AF01WL 

AF01DP 

AF01DF 

AF01DW 

C 

ALFA Figure. No; 







Dimension and Weights ANSI Class 150 

Size (NPS) 

Face-to-Face 

Wafer / Lug 

Face-to-Face 

Flanged 

Face-to-Face 

Butt Weld 

Wheel 

Diameter 

Height 

Weight 




2 50 1,69 43 4,25 108 5,91 150 6,3 160 7,5 190 3,2 4,5 9,0 

2 1/2 65 1,81 46 4,41 112 6,69 170 6,3 160 8,7 220 3,2 4,5 11,0 

3 80 1,89 48 4,49 114 7,09 180 6,3 160 9,0 229 4,5 5,4 12,5 

4 100 2,13 54 5,00 127 7,48 190 6,3 160 9,4 240 7,3 10,9 15,0 

5 125 2,20 56 5,51 140 7,87 200 6,3 160 10,0 255 8,6 12,7 18,0 

6 150 2,24 57 5,51 140 8,27 210 6,3 160 11,4 290 12,7 15,4 24,0 

8 200 2,52 64 5,98 152 9,06 230 9,4 240 12,2 310 19,1 21,3 35,0 

10 250 2,80 71 6,50 165 9,84 250 9,4 240 13,4 340 31,8 40,4 52,0 

12 300 3,19 81 7,01 178 10,63 270 9,4 240 15,6 395 49,0 57,2 69,0 

14 350 3,62 92 7,48 190 11,42 290 9,4 240 17,3 440 59,9 81,7 98,0 

16 400 4,02 102 8,50 216 12,20 310 12,6 320 19,1 485 80,8 112,5 135,0 

18 450 4,49 114 8,74 222 12,99 330 12,6 320 20,7 525 105,3 137,0 154,0 

20 500 5,00 127 9,02 229 13,78 350 12,6 320 22,4 570 144,3 186,0 202,0 

24 600 6,06 154 10,51 267 15,35 390 19,7 500 27,6 700 227,3 317,6 308,0 

28 700 9,02 229 11,50 292 16,93 430 19,7 500 35,6 905 419,7 512,7 388,0 

32 800 9,49 241 12,52 318 18,50 470 19,7 500 38,2 970 612,5 663,3 527,0 

36 900 9,49 241 12,99 330 20,08 510 19,7 500 40,9 1038 737,3 853,0 680,0 

40 1000 11,81 300 16,14 410 21,65 550 19,7 500 43,3 1100 1111,6 1202,4 975,0 

44 1100 - - 17,48 444 - - 19,7 500 45,3 1150 1188,7 1277,2 1680,0 

48 1200 13,78 350 18,50 470 24,80 630 19,7 500 46,5 1180 1275,0 1395,2 2095,0 

56 1400 15,35 390 20,87 530 27,95 710 23,6 600 60,0 1525 1406,5 1523,6 2710,0 

60 1500 - - 22,24 565 - - 23,6 600 63,0 1600 1565,3 1751,4 3240,0 

64 1600 17,32 440 23,62 600 31,10 790 23,6 600 64,6 1642 1780,9 2069,0 - 

72 1800 19,29 490 26,38 670 34,25 870 23,6 600 74,5 1893 2023,6 2325,3 - 

2 

3 

4 

(L 1 ) 

(L) (Lw) (Do) 

NOTES 

1 L 1 ( Face-to-Face Dimension of Wafer Type Soft & Metal Seated Butterfly Valve) : 24 " and Smaller as per API 609. 

Larger than 24 " as per BS 5155. 

L ( Face-to-Face Dimension of Flanged Butterfly Valve) : as per BS 5155. 

L W ( Face-to-Face Dimension of Butt Welded Butterfly Valve). 

Valves are designed for installation : 24" and Smaller as per ANSI B 16.5 and Larger than 24" as per MSS SP-44. 

(H) 



Class 300 

TM 

ALFA 

Do 

Do 

H 

NPS 

BUTT WELDED BUTTERFLY VALVE 

Lw 

L1 

METAL SEATED BUTTERFLY VALVE 

AF03WT 

AF03WS 

AF03WL 

AF03DP 

AF03DF 

AF03DW 


ALFA Figure. No: 







Size (NPS) 

Face-to-Face 

Wafer / Lug 

Face-to-Face 

Flanged 

Face-to-Face 

Butt Weld 

Wheel 

Diameter 

Height 

Weight 


(L 1 ) (L) (Lw) 



2 50 1,69 43 5,91 150 5,91 150 6,3 160 7,5 190 3,2 5,0 15,0 

2 1/2 65 1,81 46 6,69 170 6,69 170 6,3 160 8,7 220 3,2 5,0 18,0 

3 80 1,89 48 7,09 180 7,09 180 6,3 160 9,0 229 5,0 7,7 20,0 

4 100 2,13 54 7,48 190 7,48 190 6,3 160 9,4 240 7,3 10,9 25,0 

5 125 2,20 56 7,87 200 7,87 200 6,3 160 10,0 255 8,6 13,6 28,0 

6 150 2,32 59 8,27 210 8,27 210 9,4 240 11,4 290 12,7 22,2 33,0 

8 200 2,87 73 9,06 230 9,06 230 9,4 240 12,2 310 22,7 36,3 48,0 

10 250 3,27 83 9,84 250 9,84 250 9,4 240 13,4 340 39,0 52,2 67,0 

12 300 3,62 92 10,63 270 10,63 270 9,4 240 15,6 395 68,1 90,3 82,0 

14 350 4,61 117 11,42 290 11,42 290 9,4 240 17,3 440 127,9 147,0 112,0 

16 400 5,24 133 12,20 310 12,20 310 12,6 320 19,1 485 150,6 181,9 155,0 

18 450 5,87 149 12,99 330 12,99 330 13,8 350 20,7 525 177,0 234,6 176,0 

20 500 6,26 159 13,78 350 13,78 350 19,7 500 22,4 570 230,5 333,5 230,0 

24 600 7,13 181 15,35 390 15,35 390 19,7 500 27,6 700 331,2 462,8 348,0 

28 700 9,02 229 16,93 430 16,93 430 19,7 500 35,6 905 698,7 884,8 437,0 

32 800 9,49 241 18,50 470 18,50 470 19,7 500 38,2 970 843,9 1365,7 567,0 

36 900 9,49 241 20,08 510 20,08 510 19,7 500 40,9 1038 1039,0 1637,9 790,0 

40 1000 11,81 300 21,65 550 21,65 550 19,7 500 43,3 1100 1261,3 1910,2 1085,0 

48 1200 13,78 350 24,80 630 24,80 630 23,6 600 46,5 1180 - - - 

56 1400 15,35 390 27,95 710 27,95 710 23,6 600 60,0 1525 - - - 

NOTES 

1 L 1 ( Face-to-Face Dimension of Wafer Type Soft & Metal Seated Butterfly Valve) : 24 " and Smaller as per API 609. 

2 

3 

4 




(Do) 


(H) 



Class 600 

TM 

ALFA 

Do 

H 


WITH PNEUMATIC ACTUATOR 

L 

L 


WITH GEAR OPERATOR 

AF06WT 

AF06WS 

AF06WL 

AF06DP 

AF06DF 

ALFA Figure No; 







Size (NPS) 

Face-to-Face 

Wafer / Lug 

Face-to-Face 

Flanged 

Wheel 

Diameter 

Height 

Wafer 

Weight 

Lug 

(L 1 ) 

(L) 

(Ww) 

in mm in mm in mm in mm in mm kg kg 

2 50 1,69 43 5,91 150 6,3 160 8,7 220 5,0 5,9 

2 1/2 65 1,81 46 6,69 170 6,3 160 9,1 230 5,0 5,9 

3 80 2,13 54 7,09 180 6,3 160 9,8 250 5,9 8,2 

4 100 2,52 64 7,48 190 9,4 240 10,2 260 13,6 23,6 

5 125 2,52 64 7,87 200 9,4 240 12,2 310 16,3 33,6 

6 150 3,07 78 8,27 210 12,6 320 12,6 320 19,1 38,6 

8 200 4,02 102 9,06 230 12,6 320 13,8 350 32,7 57,6 

10 250 4,61 117 9,84 250 12,6 320 16,5 420 77,1 105,7 

12 300 5,51 140 10,63 270 13,8 350 18,5 470 111,2 172,0 

14 350 6,10 155 11,42 290 19,7 500 19,7 500 356,2 439,2 

16 400 7,01 178 12,20 310 19,7 500 21,7 550 444,6 530,9 

18 450 7,87 200 12,99 330 19,7 500 25,2 640 549,0 630,7 

20 500 8,50 216 13,78 350 19,7 500 33,5 850 601,2 716,9 

(Do) 

(H) 

(Wl) 

NOTES 

1 

2 

3 

4 

L 1 ( Face-to-Face Dimension of Wafer Type Soft & Metal Seated Butterfly Valve) : 24 " and Smaller as per API 609. 






TM 

ALFA 

HOW TO ORDER ALFA BUTTERFLY VALVES 

FIG. 

No. 

08" A F 01 WT - WCB - R - SO - T1 1 - 

GO 

Valve 

Style & 

Valve 

Pressure 

Body 

Desc : Brand Identi - 

Connection - - Disc Material Seat Material - 

Size 

Rating 

Material 

fication 

Type 

Shaft Bea- 

Material 

ring 

Mat'l. 

- 

Ope- Special 

rator Features 

DESCRIPTION : 8 in ALFA BUTTERFLY VALVE, ANSI CLASS 150, WAFER TYPE, BODY MATERIAL A216 Gr.WCB, DISC MATERIAL ASTM A351 Gr. 

CF8M (316 SS), SEAT MATERIAL EPDM, SHAFT 316 SS, BEARING BACKED TFE, GEAR OERATOR, NO SPECIAL FEATURES. 

VALVE SIZE 

BRAND 

VALVE IDENTIFICATION 


02 

2H 

03 

04 

06 

10 

12 

14 

48 

~ 

54 

CODE 

CONNECTION 

2" 

2-1/2" 

0Q 


3" 

4" 

6" 01 


10" ALFA 

F : BUTTERFLY 

12" 

14" 

48" 

~ 

54" 

03 


06 


STYLE & CONNECTION TYPE 

BODY AND DISC MATERIALS 

CODE 

WT 

WS 

WL 

DP 

DF 

DW 

STANDARD DESIGN 

CONNECTION 

Wafer Type 

Wafer Semi Lug Type 

Wafer Lug Type 

Double Flanged Flat Face Type 

Double Flanged Raised Face 

Type 

Butt Weld Type 

CODE 

CODE 

M ATERIAL SPECIFICATION 

M ATERIAL SPECIFICATION 

BODY DISC 

BODY DISC 

B62 A BRONZE 

ASTM B62 Gr. C83600 C5 M ALLOY STEEL 


B14 B 

ALUMINIUM 

BRONZE 

ASTM B148 Gr. C95200 C12 N ALLOY STEEL 


CI1 C CAST IRON ASTM A126 Gr. B CA15 O 410 STAINLESS STEEL ASTM A217 Gr. CA15 

DI3 D DUCTILE IRON ASTM A395 

CF8 P 304 STAINLESS ST. ASTM A351 Gr. CF8 

DI4 E DUCTILE IRON ASTM A439 

CF3 Q 304 LOW CARBON SS ASTM A351 Gr. CF3 

DI5 F DUCTILE IRON ASTM A536 

CF8M R 316 STAINLESS ST. ASTM A351 Gr. CF8M 

WCB G CARBON STEEL ASTM A216 Gr. WCB CF3M S 316 LOW CARBON SS ASTM A351 Gr. CF3M 

WCC H CARBON STEEL ASTM A216 Gr. WCC CG8M T 317 STAINLESS ST. ASTM A351 Gr. CG8M 

LCB I LOW TEMP. STEEL ASTM A352 Gr. LCB CF8C U 347 STAINLESS ST. ASTM A351 Gr. CF8C 

LCC J LOW TEMP. STEEL ASTM A352 Gr. LCC CN7M V ALLOY 20 SS 


WC6 K ALLOY STEEL ASTM A217 Gr. WC6 CD3MN W DUPLEX STAINLESS ST. ASTM A890 Gr.CD3MN 

WC9 L ALLOY STEEL ASTM A217 Gr. WC9 SP SP SPECIAL PER P.O. On Request 

SEAT MATERIAL 

SHAFT MATERIAL 

BEARING MATERIAL 

OPERATOR 

CODE 

MATERIAL 

CODE 

MATERIAL 

CODE 

MATERIAL 

BS 

Bare Shaft 

S0 

S1 

S2 

S3 

S4 

S5 

S6 

S7 

S8 

S9 

SM 

SX 

EPDM 

Buna-N 

Neoprene 

Viton 

RTFE 

NBR 

410 SS 

316 SS 

316 SS 

Stellite 

Monel 

Special Per P.O 

T0 

T1 

T2 

T3 

T4 

T5 

T6 

T7 

TX 

INCONEL X-750 

316 SS 

410 SS 

317 SS 

ALLOY 20 

17-4 PH 

MONEL 

HASTELLOY 


1 Backed TFE 

2 316 SS Backed TFE 



5 Bronze 

6 Monel 

Hastelloy C Backed 

7 

TFE 

0 Special per P.O 

EA Electric Actuator 

HO 

Handle 

HW Handle w/ Lock 

HY Hydraulic Actuator 

GO Gear Operator 

PD Pneumatic Double Acting 

PC Pneumatic SR Fail Close 

PC Pneumatic SR Fail Close 

PO Pneumatic SR Fail Open 

X Other Operator 

Special Features * Factory Assigned 


ALFATM 


FORGED STEEL 


CONTENTS 

Forged Steel Valves 

TM 

ALFA 

A. 

MAIN CODE AND STANDARDS 

B1. TYPICAL FORGED VALVES (ASTM SPECIFICATIONS) 

BODY AND BONNET MATERIALS (MATERIAL SPECIFICATIONS) 

END CONNECTIONS AND DIMENSIONS 

AMERICAN NATIONAL STANDARD TAPER PIPE THREADS (NPT) 

AND SOCKET WELD (S.W) 

AMERICAN NATIONAL STANDARD BUT WELD (B.W) AND STEEL PIPE 

FORGED STEEL GATE VALVE 

# CLASS 800 ( NPT, SW ) 

# CLASS 1500 ( NPT, SW, BW RTJ FLANGE ) 


# CLASS 150, 300, 600 ( KF FLANGE ) ( RTJ FLANGE ) 


# EXTENDED BODY CLASS 800 

FORGED STEEL GLOBE VALVE 





FORGED STEEL Y-GLOBE VALVE 

# CLASS 800, 1500 

FORGED STEEL NEEDLE GLOBE VALVE 

# CLASS 800, 1500 

# CLASS 1500, 300, 600 

FORGED STEEL CHECK VALVE 





FORGED STEEL Y-CHECK VALVE 

# CLASS 800, 1500 

FORGED STEEL CRYOGENIC GATE VALVE 

# CLASS 800 

# CLASS 150, 300, 600 

FORGED STEEL CRYOGENIC GLOBE VALVE 

# CLASS 800 

# CLASS 150, 300, 600 

HOW TO ORDER GATE, GLOBE, AND CHECK VALVES 

2 


MAIN CODE & STANDARDS 

Forged Steel Valves 

TM 

ALFA 

The last test edition revision of following codes, standards and specifications and valves data sheets shall be used. 

API Standards: 

API 591 User Acceptance of Refinery Valves 

API 598 Valves Inspection and Testing 

API 602 Compact Steel Gate Valves 

BS Standards: 

BS 1414 Specification for Steel Wedge Gate Valves 

BS 5352 Specification for 50mm and Small Steel Valves 

BS 6755 Specification for Testing of Valves 

BS 5146 Specification for Inspection and Test of Steel Valves 

ASME/ANSI Standards: 

B 1.1 Unified Screw Threads 

B 1.5 Acme Screw Threads 

B 16.5 Pipe Flanges and Flanged Fittings 

B 16.10 Face to face and End to End Dimensions 

B 16.11 Forged Steel Fittings, Socket Welding and Threaded 

B 16.20 Metallic Gaskets-Ring Joint, Spiral Wound and Jacketed 

B 16.25 Butt-Welding Ends 

B 16.34 Valves 

B 18.2 Square and Hex Head Nuts 

B 46.1 Surface Texture 

B 31.3 Chemical plant and petroleum refinery piping 

ASTM Standards: 

A105 Carbon Steel Forgings 

A182 Forged or Rolled Alloy Steel for Valves 

A193 Alloy Steel and Stainless Steel Botting Materials 

A194 Carbon and Alloy Steel Nuts 

A350 Low Temperature Alloy Steel Forged Parts 

A276 Stainless and Heat-Resisting Steel Bar 

A216 Carbon Steel Casting 

NACE MR01-75 Sulfide stress Cracking Resistant Metallic Materials for Oilfield Equipment 

ASME Codes 

Sec.V Non-destructive examination 

Sec.IX Welding and Braizing Qualifications. 

MSS Standards: 

Description 

Carbon Steel 

ASTM A105 

Low Temp. Steel 

Alloy Steel ASTM A182 

Austenitic S.S ASTM A182 

per ASTM A350 

LF2 F5 F11 F22 304 316 304L 316L 

Carbon % 0.35 max 0.30 max 0.15 max 0,10-0,20 0.05-0.15 0,08 max 0,08 max 0,035 max 0,035 max 

Maganese % 0.60-1.5 1.35 max 0.30-0.60 0,30-0,80 0,30-0,60 2,0 max 2,0 max 2,0 max 2,0 max 

CHEMICAL COMPOTSITION 

Phospor.max % 0,040 0,035 0,030 0,040 0,040 0,040 0,040 0,040 0,040 

Sulphur.max % 0,050 0,04 0,030 0,040 0,040 0,030 0,030 0,030 0,030 

Silicon % 0.35 max 0.15-0.30 0.50 max 0,50-1,0 0.50 max 1,0 max 1,0 max 1,0 max 1,0 max 

Nickel % 0.40 max 0.40 max 0.50 max - - 8,00-11,00 10,00-14,00 8,00-13,00 10,00-15,00 

Chronium % 0.30 max 0.30 max 4,0-6,0 1,00-1,50 2,00-2,50 18,00-20,00 16,00-18,00 18,00-20,00 16,00-18,00 

Molybdnum % 0.12 max 0.12 max 0.44-0.65 0,44-0,65 0,87-1,13 - 2,0-3,0 - 2,00-3,00 

Copper % 0.40 max 0.40 max - - - - - - - 

Vandium % 0.03 max 0.03 max - - - - - - - 

Columbium % 0.02 max 0.02 max - - - - - - - 

MECHANICAL PROPERTIES 

Tensile min (Mpa) 485 485-655 485 515 515 515 515 485 485 

Yield min (Mpa) 250 250 275 310 310 205 205 170 170 

Elongation min % 22 22 20,0 20,0 20,0 30 30 30 30 

Reduction % 30 30 35,0 30,0 30,0 50 50 50 50 

HB max 187 197 143-217 156-207 156-207 - - - - 

Impact "V" min (J) - 16/-45.6*C - - - - - - - 

3 


TYPICAL FORGED VALVES 

ASTM Specifications 

TM 

ALFA 

Typicaly Gate 

Principal Material Gate Valve 

Part 

No 


Part Name Q'ty A350 

A182 

A105 

LF2 F5 F11 F22 304 304L 316 316L 

1 Body 1 A105 LF2 F5 F11 F22 304 304L 316 316L 

2 Bonnet 1 A105 LF2 F5 F11 F22 304 304L 316 316L 

3 Stem 

1 

A276-410 

4 Disc 1 A276-420 

5 Seat Ring 2 A276-410+STL 

6 Bonnet Bolt 4 

A193 A320 

.-B7 .-L7 

A193-B16 

7 Gasket 1 

8 Gland 1 

9 Packing 1set 

10 Gland Flange 1 

11 Gland Bolt 2 

12 Gland Bolt Nut 2 

13 Gland Bolt Pin 2 

14 Sleeve 1 

15 Sleeve Washer 2 

16 Handweel 1 

17 Nameplate 1 

18 Handweel Nut 1 

304+Graphite 

A276-410 

Grafoil 

WCB 

A276-410 

A194-2H 

A276-410 

A276 A276 A276 A276 

-304 .-304L -316 .-316L 

304- 304L 316 316L 

STL .-STL .-STL .-STL 

304- 304L 316 316L 

STL .-STL .-STL .-STL 

A193-B8 A193 B8M 

304+Graphite 

A276-304 A276-316 

PTFE 

CF8 

A276-304 

A194-8 

A276-304 

A276-410 

A276-410 

A197 

Alumunium 304 

A108-1020 

NACE 

HRc

TYPICAL FORGED VALVES 


TM 

ALFA 

Typicaly Globe 

Principal Material Globe Valve 

Part 

No 


Part Name Q'ty A350 

A182 

A105 

LF2 F5 F11 F22 304 304L 316 316L 

1 Body 1 A105 LF2 F5 F11 F22 304 304L 316 316L 

2 Bonnet 1 A105 LF2 F5 F11 F22 304 304L 316 316L 

3 

4 

Stem 

Disc 

1 

1 

A276-410 

A276-420 

A276 

304- 

A276 

304L 

A276 

316 

A276 

316L 

-304 

STL 

.-304L 

.-STL 

-316 

.-STL 

.-316L 

.-STL 

5 Bonnet Bolt 

4 

A193 A320 

.-B7 .-L7 

A193-B16 A193-B8 A193 B8M 

6 Gasket 1 

7 Gland 1 

8 Packing 1set 

9 Gland Flange 1 

10 Gland Bolt 2 

11 Gland Bolt Nut 2 

12 Gland Bolt Pin 2 

13 Sleeve 1 

14 Handweel 1 

15 Nameplate 1 

16 Handweel Washer 1 

17 Handweel Nut 1 

304+Graphite 

304+Graphite 

A276-410 A276-304 A276-316 

Grafoil 

PTFE 

WCB 

CF8 

A276-410 A276-304 

A194-2H 

A276-410 A276-304 

A276-410 

A197 

Alumunium 304 

A108-1020 

A194-2H 

NACE 

HRc


NPT & SW 

Class 800 & 1500 

TM 

ALFA 

FEATURES : APPLICABLE STANDARDS : 

x 

x 

x 

x 

x 

x 

Reduced or Full Port 

Compact Outside Screw & Yoke 

Spiral Wound Gasket Of Stainless Steel 

Bolted Bonnet or Welded Bonnet 

Socket Welding or Threaded Ends 

Replaceable Hard-faced Seats 

x 

x 

x 

x 

x 

Basic Design, API 602 & ANSI B16.34 

Socket-Welded (S.W), ANSI B16.11 

Screwed End (S.E), ANSI B1.20.1 

Valves Test and inspect : API 598 & ANSI 

B16.34 

Standards Material : A105.LF2.F5.F11. 

W 

W 

H 

Fig No: AG08-B 

Fig No: AG08-W 

S.W 

H 



d 

S.W 

L 

S.E 

L 

S.E 

Dimensions and Weights 

CLASS 800 : 

Nominal Reduced Port mm (in) 8(1/4) 10(3/8) 15(1/2) 20(3/4) 25(1) 32(1 1/4) 40(1 1/2) 50(2) 65(2 1/2) 80(3) 

diameter Full Port mm (in) - - 10(3/8) 15(1/2) 20(3/4) 25(1) 32(1 1/4) 40(1 1/2) 50(2) - 

d 

L 

H (open) 

W 

mm 7 7 10 13,6 18 24 29 36,8 46,5 51 

mm 79 79 79 92 111 120 120 140 178 185 

mm 166 166 166 169 193 230 246 283 330 359 

mm 100 100 100 100 125 160 160 180 200 200 

Weight 

B.B kg 2,3 2,2 2,1 2,3 4 5,9 6,9 11,2 15,8 20 

W.B kg 1,9 1,8 1,7 2,1 3,7 5,2 6,2 10,4 14,8 - 

CLASS 1500 : 

Nominal Reduced Port mm (in) 8(1/4) 10(3/8) 15(1/2) 20(3/4) 25(1) 32(1 1/4) 40(1 1/2) 50(2) 

diameter Full Port mm (in) - - 10(3/8) 15(1/2) 20(3/4) 25(1) 32(1 1/4) 40(1 1/2) 

d 

L 

H (open) 

W 

mm 7 7 13,6 13,6 18 24 29 36,8 

mm 111 111 111 111 114 120 140 162 

mm 197 197 197 197 224 237 276 320 

mm 125 125 125 125 160 160 180 200 

Weight B.B kg 4,8 4,7 4,6 4,6 6,3 8,7 12,1 17,2 

W.B kg 4,1 4 3,9 3,9 5,8 7,8 11,2 16 

Due to continuous development of our products, we reserve the right to modify our product design or construction without prior notice. 

6 



SW &BUTTWELD 

Class 2500 

TM 

ALFA 


x 

x 

x 

x 

Welded Bonnet 


Socket Welding or Butt-Weld Ends 

Replaceable Hard-faced Seats 

x 

x 

x 

x 

x 

x 

Basic Design, ANSI B16.34 



But-Weld (B.W), ANSI B16.25 

Valves Test and inspect : API 598 & ANSI B16.34 


F22.F304.F204L.F316.F316L 

W 

W 

S.W 

H 

S.E 

d 

d 

S.W 

H 

L 


L 



Nominal diameter Reduced Port mm (in) 15(1/2) 20(3/4) 25(1) 32(1 1/4) 40(1 1/2) 50(2) 

d 

L 

H (open) 

W 

Weight 

mm 13,6 13,6 18 25 29 36,8 

S.W;S.E mm 114 114 140 162 162 200 

B.W mm 216 229 254 279 305 368 

mm 218 218 259 320 320 350 

mm 125 125 160 180 180 200 

S.W;S.E kg 7 7 14 23 22,5 28 

W.B kg 11,3 12,5 15,6 17,8 20,9 35,5 


7 



FLANGED 

Class 150, 300, 600 

TM 

ALFA 


x 

x 

x 

x 

x 


Spiral Wound Gasket of Stainless Steel 

Integral Hard-faced Seat 


Flanged Ends 

x 

x 

x 

x 

x 


Flanged Ends (F.E), ANSI B16.5 

Face to Face ANSI B16.10 

Valves Test and Inspect : API 598 


F22.F304.F304L.F316.F316L 

W 

W 

H 

600psi 

600psi 

d 

A 

B 

C 

H 

T 

f 

T 

f 

n – 

n – 

d 

A 

B 

C 

L 

T 

f 

150 & 300 psi 

L 

T 

f 

150 & 300 psi 

Fig No: AG01F-B 

AG03F-B 

AG06F-B 

Fig No: AG01F-W 

AG03F-W 

AG06F-W 


Nominal diameter mm (in) 15(1/2) 20(3/4) 25(1) 32(1 1/4) 40(1 1/2) 50(2) 

d mm 10 13 17 23 30 37 

CLASS 150L mm 108 117 127 140 165 203 

CLASS 300L mm 152 178 203 216 229 267 

CLASS 600L mm 165 190 216 229 241 292 

H (open) mm 176 176 212 230 254 294 

W mm 100 100 125 160 160 180 

CLASS 150 Weight kg 3,6 5 6,6 9,8 12 15 

CLASS 300 Weight kg 4 5,2 7,5 11,3 16,5 18,2 

CLASS 600 Weight kg 5,6 6,9 9,8 12,5 18,4 20 


8 



Extended Body Class 800 

API 606 

TM 

ALFA 

K3 

W 

FEATURES : 

K2 

K1 

W.B 

B.B 

H 

x 

x 

x 

x 

x 

Welded Bonnet or Bolted Bonnet 


Extended Body 

Replaceable Hard-face Seats 

One End Is Socket Welding 

or Threaded End The Other is 

K.K1.K2.K3 End 

APPLICABLE STANDARDS : 

K 

L 1 

S.W 

S.E 

x 

x 

x 

x 

x 

Basic Design, API 606 




& ANSI B16.34 


F22.F304.F304L.F316.F316L 

L 2 

Fig No: AG08-B-EB 

AG08-W-EB 

Designation 

K 

K1 

K2 

K3 

Connection End Integral Male Threaded Beveled End Integral Male Couplet 

Socket Welding End 

Dimensions And Weights 

Nominal diameter 

d 

L1 

L2 

H (open) 

W 

mm (in) 15(1/2) 20(3/4) 25(1) 40(1 1/2) 50(2) 

mm 10 13 18 29 36,5 

mm 103 103 111 127 152 

mm 140,5 145,5 162 187 222 

mm 166 169 193 246 283 

mm 100 100 125 160 180 

Weight B.B kg 2,9 3,4 5,5 8,3 13,4 

W.B kg 4,9 4,5 7,4 13,5 16,2 


9 


FORGED STEEL GATE VALVE Extended Body Class 800 

API 606 

TM 

ALFA 

Class 800 

Conventional Port 

Body/ Bonnet 

A105 

A105 

F316 F316L 

A105 

Material 

Trim 

13% Cr. 

Monel 

316 

13% Cr. 

Type Ends 

Integral Male Threaded 

Female Threaded 

o 

100 F RATINGS FOR VALVES: 

A105 

F316 F316L 

1975 psi 

1920 psi For other ratings see page 121. 

Illustration 

A105 

A105 

A105 

F316 F316L 

13% Cr. 

316 

Monel 

316 

Integral Male socket W. 


A105 

F316 

f316 L 

13% Cr. 

316 

Integral Male Couplet 


A105 

13% Cr. 

Integrally Reinforced 

Extended Length 

Male Couplet 


Size 

Weight in 

pounds 

A 

B 

C 

DIMENSION 

D E 

F 

G 

H 

J 

K 

L 

M 

N 

P 

R 

½ 

4.4 

4.00 

1.69 

7.00 

.47 

.50 

6.50 

5.88 

4.00 

.64 

.75 

.84 

1.25 

.81 

1.56 

.97 

3/4 

4.1 

4.00 

1.69 

7.00 

.47 

.50 

6.50 

5.88 

4.00 

.65 

.75 

1.05 

1.25 

.81 

1.56 

.97 

1 

7.3 

4.38 

2.00 

7.50 

.69 

.75 

8.31 

7.38 

4.75 

.90 

1.00 

1.32 

1.56 

1.06 

1.94 

1.22 

1 ½ 

12.8 

5.00 

2.38 

8.00 

1.25 

1.25 

10.12 

8.69 

5.75 

1.47 

1.50 

1.90 

2.25 

1.69 

2.56 

1.72 

Seats are hard faced 

10 



NPT & SW 

Class 800 & 1500 

TM 

ALFA 


x 

x 

x 

x 

x 

x 






Integral Stellite Seat 

x 

x 

x 

x 

x 


Socket-Weld (S.W), ANSI B16.11 


Valves Test and inspect : API 598 


F22.F304.F304L.F316.F316L 

W 

W 

H 

Fig No: AL08-B 

Fig No: AL08-W 

S.W 

S.W 

H 



L 

S.E 

L 

S.E 


CLASS 800 

Nominal Reduced Port mm (in) 8(1/4) 10(3/8) 15(1/2) 20(3/4) 25(1) 32(1 1/4) 40(1 1/2) 50(2) - 

diameter Full Port mm (in) - - 10(3/8) 15(1/2) 20(3/4) 25(1) 32(1 1/4) 40(11/2) 50(2) 

d 

mm 8 10 10 13 17 23 30 37 46 

L 

mm 79 79 79 92 111 130 152 172 200 

H (open) mm 176 176 176 176 212 230 254 294 327 

W 

mm 100 100 100 100 125 160 160 180 200 

Weight B.B kg 2,2 2,1 1,9 2,1 3,9 5,8 7,2 10,8 16 

W.B kg 1,9 1,8 1,7 2,1 3,7 5,2 6,2 10,4 14,8 

CLASS 1500 

Nominal Reduced Port mm (in) 8(1/4) 10(3/8) 15(1/2) 20(3/4) 25(1) 32(1 1/4) 40(1 1/2) 50(2) 


d 

mm 7 7 10 13 17 23 30 37 

L 

mm 111 111 111 111 130 152 172 220 

H (open) 

mm 207 207 207 207 240 258 290 337 

W 

mm 125 125 125 125 160 160 180 200 

Weight B.B kg 4,9 4,9 4,7 4,6 6,8 9,2 13,6 20,9 

W.B kg 4,3 4,3 4,1 4 6,2 8,6 12,7 19,1 


11 



SW & BUTTWELD 

Class 2500 

TM 

ALFA 


x 

x 

x 

x 

Welded Bonnet 


Socket Welding or Butt-Weld Ends 

Replaceable Hard-face Seats 

x 

x 

x 

x 

x 

x 




But-Weld (B.W), ANSI B16.25 

Valves Test and inspect : API 598 & ANSI B16.34 


F22.F304.F204L.F316.F316L 

W 

W 

S.W 

S.W 

H 

H 

S.E 

L 

L 




Nominal diameter Regular Port mm (in) 15(1/2) 20(3/4) 25(1) 32(1 1/4) 40(1 1/2) 50(2) 

d 

mm 13,6 13,6 18 25 29 36,8 

L 

S.W;S.E mm 114 114 140 162 162 200 

B.W mm 216 229 254 279 305 368 

Weight 

H (open) 

W 

mm 218 218 259 320 320 350 

mm 125 125 160 180 180 200 

S.W;S.E kg 7 7 14 23 22,5 28 

W.B kg 11,3 12,5 15,6 17,8 20,9 35,5 


12 



FLANGED 

Class 150,300,600 

TM 

ALFA 


x 

x 

x 

x 

x 



Integral Hard-faced Seat 


Flanged Ends 

x 

x 

x 

x 

x 






F22.F304.F304L.F316.F316L 

W 

W 

600psi 

600psi 

d 

A 

B 

C 

H 

H 

T 

f 

T 

f 

n – 

n – 

d 

A 

B 

C 

L 

T 

f 

150 & 300 psi 

L 

T 

f 

150 & 300 psi 

Fig No: AL01F-B 

AL03F-B 

AL06F-B 

Fig No: AL01F-W 

AL03F-W 

AL06F-W 



d mm 10 13 17 23 30 37 

CLASS 150L mm 108 117 127 140 165 203 

CLASS 300L mm 152 178 203 216 229 267 

CLASS 600L mm 165 190 216 229 241 292 

H (open) mm 176 176 212 230 254 294 

W mm 100 100 125 160 160 180 





13 


FORGED STEEL NEEDLE GLOBE VALVE 

Flanged, SW & NPT 

TM 

ALFA 

H 



d 

L 

H (open) 

W 

Weight 

W 

L 

Fig No: 

S.W 

S.E 

AL08-B-4L 

AL15-B-4L 

FEATURES : 

x 

x 

x 

x 

x 

x 


x 

x 

x 

x 

x 

Bolted Bonnet 


Reduced Port 


Needle Point Flow Control 





Valves Test and Inspect : API 598 & ANSI B16.34 


F22.F304.F304L.F316.F316L 


mm (in) 8(1/4) 10(3/8) 15(1/2) 20(3/4) 25(1) 32(1 1/4) 40(1 1/2) 50(2) 

mm 8 10 10 13 17 23 30 37 

mm 79 79 79 92 111 130 152 172 

mm 179 176 176 176 212 230 254 294 

mm 100 100 100 100 125 160 160 180 

kg 2,3 2,2 2 2,1 4,2 6,1 7,5 11,2 

ANSI Class 150, 300, 600 

H 

T 

f 

600psi 

W 

L 

d 

150 & 300 psi 

Fig No: 

T 

f 

n – 

A 

AL01F-4L 

AL03F-4L 

B 

C 

FEATURES : 

x Bolted Bonnet 

x Compact Outside Screw & Yoke 

x Reduced Port 

x Spiral Wound Gasket of Stainless Steel 

x Needle Point Flow Control 

x Integral Stellite Seat 


x 

x 

x 

x 

x 

x 


Flanged End (F.E), ANSI B16.5 



Standard Material : A105.LF2.F5.F11. 

F22.F304.F304L.F316.F316L 


Nominal diameter mm(in) 15(1/2) 20(3/4) 25(1) 32(1 1/4) 40(1 1/4) 50(2) 

d mm 10 13,6 17 23 30 37 

CLASS 150L mm 108 117 127 140 165 203 

CLASS 300L mm 152 178 203 216 229 267 

CLASS 600L mm 165 190 216 229 241 292 

H (open) mm 176 176 212 230 254 294 

W mm 100 100 125 160 160 180 





14 


FORGED STEEL Y-CHECK VALVE 

Y-GLOBE VALVE 

Nominal Pipe Thread (NPT) ANSI B.16.20 - B.16.11 

Class 800,1500 

TM 

ALFA 

Y-GLOBE VALVE 

W 

FEATURES : 

x Welded Bonnet or Bolted Bonnet 


x Socket Welding or Threaded Ends 

x Compact Outside Screw & Yoke 

x Integral Stellite Seat 

H 

H 

Fig No: AL08-B-YL 

AL15-B-YL 

L 

Fig No: AL08-W-YL 

AL15-W-YL 

L 

S.W 

S.E 

W 

S.W 

S.E 

x 

x 

x 

x 

x 


Wight 


d 

L 

H 

W 



Socket-Weld (S.W), ANSI B16.11 




F22.F304.F304L.F316.F316L 

mm (in) 10(3/8) 15(1/2) 20(3/4) 25(1) 32(1 1/4) 40(1 1/2) 50(2) 

CLASS 800 mm 10 13 17 23 30 37 46 

CLASS 1500 mm 10 13 13 19 28 2,8 38 

CLASS 800 mm 98 98 98 120 140 140 170 

CLASS 1500 mm 98 98 120 140 170 170 200 

CLASS 800 mm 240 240 240 290 302 368 368 

CLASS 1500 mm 170 170 195 235 278 278 310 

CLASS 800 mm 100 100 100 125 160 160 180 

CLASS 1500 mm 100 100 125 160 180 180 200 

B.B CLASS 800 kg 4,6 4,6 4,6 7,6 9,8 13,7 14 

W.B CLASS 800 kg 3,5 3,5 3,8 6,6 8,5 11,3 12,5 

W.B CLASS 1500 kg 4,5 4,5 6,1 7,6 9,8 14,5 20,8 


15 



BOLTED & WELDED BONNET 

Class 800 

Nominal Pipe Thread (NPT) ANSI B.16.20 - B.16.11 

TM 

ALFA 


x 

x 

x 

x 

x 


Lift or Swing Check Valve 


Bolted and Welded Bonnet 


x 

x 

x 

x 

x 




Valves Test and Inspect : API 598 & ANSI B16.34 


H 

S.E 

S.E 

S.W 

S.W 

H 

H 

S.E 

S.W 

L 

Fig No. AC08-B-5C 

L 


L 


BOLTED BONNET 

FIGURE No. 

S.W 

S.W 

H 

H 

L 

Fig No. AC08-W-5C 

S.E 

L 


S.E 

WELDED BONNET 

FIGURE No. 

BOLTED BONNET 


LIFT CHECK VALVE 

Nominal Regular Port mm (in) 8(1/4) 10(3/8) 15(1/2) 20(3/4) 25(1) 32(1 1/4) 40(1 1/2) 50(2) - 

diameter Full Port mm (in) - - 10(3/8) 15(1/2) 20(3/4) 25(1) 32(1 1/4) 40(1 1/2) 50(2) 

d 

mm 7 7 10 13 17 23 30 37 46,5 

L 

mm 79 79 79 92 111 120 152 172 200 

H 

mm 61 61 61 61 78 84 103 118 132 

Weight 

kg 1,5 1,4 1,2 1,4 2,3 3,9 5,6 8,9 12,5 




d 

mm 7 7 10 13,6 18 24 29 36,8 46,5 

L 

mm 79 79 79 92 111 120 120 140 170 

H 

mm 61 61 61 61 78 84 101 120 133 

Weight 

kg 1,3 1,2 1,0 1,1 1,9 3,4 4,5 7,3 9,8 

WELDED BONNET 



d 

mm 7 7 10 13 17 23 30 37 46,5 

L 

mm 79 79 79 92 111 120 152 172 200 

H 

mm 61 61 61 61 78 84 103 118 132 

Weight 

kg 1,58 1,54 1,52 1,72 2,83 6,5 7,8 9,65 10,8 


BOLTED BONNET 


Nominal Regular Port 

LIFT CHECK VALVE 

mm (in) 8(1/4) 10(3/8) 15(1/2) 20(3/4) 25(1) 32(1 1/4) 40(1 1/2) 50(2) 


d 

mm 7 7 10 13 17 23 30 37 

L 

mm 111 111 111 111 130 152 172 220 

H 

mm 79 79 79 79 97 104 120 139 

Weight 

kg 3 3 3 3,4 4,8 6,9 10,7 14,6 


Nominal Regular Port mm (in) 8(1/4) 10(3/8) 15(1/2) 20(3/4) 25(1) 32(1 1/4) 40(1 1/2) 50(2) 


d 

mm 7 7 10 13,6 18 24 29 36,8 

L 

mm 111 111 111 111 120 140 140 162 

H 

mm 79 79 79 79 97 105 120 140 

Weight 

kg 3,2 3,1 3 3,6 4,3 6,1 8,8 12,6 

WELDED BONNET 

Nominal Regular Port mm (in) 8(1/4) 10(3/8) 15(1/2) 20(3/4) 25(1) 32(1 1/4) 40(1 1/2) 50(2) 

diameter Full Port mm (in) - 8(1/4) 10(3/8) 15(1/2) 20(3/4) 25(1) 32(1 1/4) 40(1 1/2) 

d 

mm 7 7 10 13 17 23 30 37 

L 

mm 111 111 111 111 130 152 172 220 

H 

mm 79 79 79 79 97 104 120 139 

Weight 

kg 2,3 2,2 3,5 3,8 5,3 8,4 13,2 16,8 


16 



FLANGED 

Class 150,300,600 

TM 

ALFA 


x 

x 

x 

x 

x 

Bolted Bonnet 


Flanged Ends 

Lift or Swing Check Valve 


x 

x 

x 

x 

x 




Valves Test and inspect : API 598 


F22.F304.F304L.F316.F316L 

600psi 

T 

f 

A 

B 

C 

A 

B 

C 

H 

H 

L 

n - 

T 

f 

L 

n - 

T 

f 

Fig No: AC01F-B-4C 

AC03F-B-4C 

AC06F-B-4C 

Fig No: AC01F-B-1C 

AC03F-B-1C 

AC06F-B-1C 



d 

LIFT mm 13 17 23 30 37 46,5 

SWING mm 13,6 18 24 29 36,8 46,5 

CLASS 150L 

mm 108 117 127 140 165 203 

CLASS 300L 

mm 152 178 203 216 229 267 

CLASS 600L 

mm 165 190 216 229 241 292 

H 

mm 61 61 78 84 103 118 

CLASS 150 Weight kg 2,6 3,4 4,4 8,2 9 12,6 

CLASS 300 Weight kg 2,7 3,7 4,7 8,8 9,6 13,7 

CLASS 600 Weight kg 3 4 5,8 9,5 10 15,6 


17 



NPT & SW 

Class 2500 

TM 

ALFA 


x 

x 

x 

Lift Check Valve 

Welded Bonnet 


x 

x 

x 

x 

x 




Valves Test and Inspect: API 598 & ANSI B16.34 


S.W 

S.W 

H 

H 

S.E 

S.E 

L 

L 





d 

L 

H 

Weight 

mm (in) 15(1/2) 20(3/4) 25(1) 32(1 1/4) 40(1 1/2) 50(2) 

mm 10 13 17 23 30 35 

mm 127 152 172 172 235 235 

mm 79 98 110 110 170 170 

kg 6,6 11,8 17,6 16,9 21,5 21,3 


FORGED STEEL Y-CHECK VALVE Class 800,1500 

Y-GLOBE VALVE 

Y-CHECK VALVE 

FEATURES : 

x 

x 

x 

Welded Bonnet 

Lift Check Valve 



x 

x 

x 

x 

x 


Socket Welded (S.W), ANSI B16.11 






mm (in) 10(3/8) 15(1/2) 20(3/4) 25(1) 32(1 1/4) 40(1 1/2) 50(2) 

H 

S.E 

d 

CLASS 800 mm 10 13 17 23 30 37 46,5 

CLASS 1500 mm 10 13 17 23 30 37 46,5 

S.W 

L 

CLASS 800 mm 98 98 98 120 140 140 170 

CLASS 1500 mm 102 102 102 130 150 190 190 

CLASS 800 mm 84 84 84 102 114 114 145 

Fig No: AC08-W-YC 

L 

H 

Weight 

CLASS 1500 mm 90 90 101 125 132 143 203 

CLASS 800 kg 3 2,9 3,7 6,5 8,5 9,6 10,8 

CLASS 1500 kg 3,2 3,2 4,1 7,2 10,5 11,6 12 

18 



Class 800 

FEATURES : 

x 

x 

x 

x 

x 


Outside Screw & Yoke Long Bonnet 

Spiral Wound Gasket of Stainless 

Steel 


Replaceable Hard Faced Seat 


x 

x 

x 

x 

x 




Valves Test and Inspect: API 598 & ANSI B16.34 

Standards Material : F304.F304L.F316.LF3 


TM 

ALFA 


diameter Full Port mm (in) - 8(1/4) 10(3/8) 15(1/2) 20(3/4) 25(1) 32(1 1/4) 40(1 1/2) 50(2) 

d 

L 

H (open) 

W 

Weight 


Fig No: AG08-B-CY 

mm 8 8 10 13,6 18 24 29 36,8 46,5 

mm 79 79 79 92 111 120 120 140 178 

mm 333 333 333 343 360 407 475 475 551 

mm 100 100 100 125 125 160 160 180 200 

kg 5,2 5,2 5 701 9,4 13,5 15 17,8 28 

H 

W 

L 

S.W 

S.E 

Class 150,300,600 

W 

FEATURES : 

xBolted Bonnet 

xSpiral Wound Gasket of Stainless Steel 

xReplaceable Hard-faced Seats 

xOutside Screw & Yoke Long Bonnet 

xFlanged Ends 

xBalancing Hole on Wedge 


x 

x 

x 

x 

x 


Flanged End (F.E), ANSI B16.5 



Standard Material : F304.F304L.F316.LF3 


H 

L 

150 & 300 psi 

Fig No: AG01F-CY 

AG03F-CY 

AG06F-CY 


d mm 10 13,6 18 24 29 37 

CLASS 150L mm 108 117 127 140 165 178 

CLASS 300L mm 140 152 165 178 190 216 

CLASS 600L mm 165 190 216 229 241 292 

H (open) mm 333 360 407 475 475 551 

W mm 100 125 125 160 160 180 

CLASS 150 Weight kg 6 8,7 11 16,1 18,5 21,6 

CLASS 300 Weight kg 7 9,4 12,5 18,3 20,1 24 


T 

T 

f 

f 

600psi 

n – 

A 

B 

C 


19 


FORGED STEEL CRYOGENIC GATE VALVE 

Class 800 

FEATURES : 

x 

x 

x 

x 

x 



Spiral Wound Gasket of Stainless 

Steel 


Replaceable Hard Faced Seat 


x Basic Design, API 602 & ANSI B16.34 

x Socket-Welded (S.W), ANSI B16.11 

x Screwed End (S.E), ANSI B1.20.1 

x Valves Test and Inspect: API 598 & ANSI B16.34 

x Standards Material : F304.F304L.F316.LF3 




d 

L 

H (open) 

W 

Weight 


mm 8 8 10 13,6 18 24 29 36,8 46,5 

mm 79 79 79 92 111 120 120 140 178 

mm 333 333 333 343 360 407 475 475 551 

mm 100 100 100 125 125 160 160 180 200 

kg 5,2 5,2 5 701 9,4 13,5 15 17,8 28 

H 

W 

L 

TM 

ALFA 

Fig No: AG08-B-CY 

S.W 

S.E 

Class 150,300,600 

W 

FEATURES : 

xBolted Bonnet 

xSpiral Wound Gasket of Stainless Steel 

xReplaceable Hard-faced Seats 

xOutside Screw & Yoke Long Bonnet 

xFlanged Ends 

xBalancing Hole on Wedge 



x Flanged End (F.E), ANSI B16.5 

x Face to Face ANSI B16.10 

x Valves Test and Inspect : API 598 

x Standard Material : F304.F304L.F316.LF3 


H 

L 

150 & 300 psi 

Fig No: AG01F-CY 

AG03F-CY 

AG06F-CY 


d mm 10 13,6 18 24 29 37 

CLASS 150L mm 108 117 127 140 165 178 

CLASS 300L mm 140 152 165 178 190 216 

CLASS 600L mm 165 190 216 229 241 292 

H (open) mm 333 360 407 475 475 551 

W mm 100 125 125 160 160 180 

CLASS 150 Weight kg 6 8,7 11 16,1 18,5 21,6 

CLASS 300 Weight kg 7 9,4 12,5 18,3 20,1 24 


T 

T 

f 

f 

600psi 

n – 

A 

B 

C 



FORGED STEEL CRYOGENIC 

GLOBE VALVE 


TM 

ALFA 

Class 800 

W 

FEATURES : 

x 

x 

x 

x 

x 







x 

x 

x 

x 




Valves Test and Inspect: API 598 & ANSI 

B16.34 

H 

Fig No: AL08-CY 




d 

mm 8 8 10 13 17 23 30 37 46 

L 

mm 79 79 79 92 111 130 152 172 200 

H (open) 

mm 359 359 359 370 370 410 474 474 546 

W 

mm 100 100 100 125 125 160 160 180 200 

Weight 

kg 6,8 6,6 6,4 7,2 9,5 13,5 17 19,8 29,6 

L 

Class 150,300,600 

W 

FEATURES : 

x Bolted Bonnet 


x Integral Stellite Seats 

x Outside Screw & Yoke Long Bonnet 

x Flanged Ends 

H 

Fig No: AL01-CY 

AL03-CY 

AL06-CY 

600psi 

T 

f 



x Flanged End (F.E), ANSI B16.5 

x Face to Face ANSI B16.10 

x Valves Test and Inspect : API 598 

x Standard Material : F304.F304L.F316.LF3 


L 

150 & 300 psi 

T 

f 

A 

n – 

B 

C 


d mm 10 13 17 23 30 37 

CLASS 150L mm 108 117 127 140 165 203 

CLASS 300L mm 152 178 203 216 229 267 

CLASS 600L mm 165 190 216 229 241 292 

H (open) mm 359 370 370 410 474 474 

W mm 100 125 125 160 160 180 





21 


END CONNECTIONS AND DIMENSIONS 

Dimension 

ANSI B.16.20 - B.16.11 

TM 

ALFA 

FLANGED 

D 

g 

C 

A 

D 

g 

C 

A 

L 

f 

n – 

T 

f 

f n – 

T 

f 

½”~ 2” (Forging) 

2”~ 12” (Casting) 

BUTTWELDING 

End Connections and Dimensions Table 

Class 

900&1500 

600 

300 

150 

DIMENSIONS (ANSI B16.10) 

Valves 

L 

Number 

D 

A C g 

T 

f 

Size Gate Globe/Check Swing Check* 

of Bolts 

DN in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. Number 

15 1/2 108 4,25 108 4,25 108 4,25 17 0,67 89 3,50 60,5 2,38 35,0 1,38 11,5 0,44 16 0,62 

20 3/4 117 4,62 117 4,62 117 4,62 23 0,91 99 3,88 70,0 2,75 43,0 1,69 13,0 0,50 16 0,62 

25 1 127 5,00 127 5,00 127 5,00 29 1,14 108 4,25 79,5 3,12 51,0 2,00 14,5 0,56 16 0,62 

32 1 1/4 140 5,50 140 5,50 140 5,50 35 1,38 118 4,62 89,0 3,50 63,5 2,50 16,0 0,62 16 0,62 

40 1 1/2 165 6,50 165 6,50 165 6,50 40 1,57 127 5,00 98,5 3,88 73,0 2,88 17,5 0,69 16 0,62 

50 2 178 7,00 203 8,00 203 8,00 52 2,05 152 6,00 120,5 4,75 92,0 3,62 19,5 75,00 20 0,75 

65 2 1/2 191 7,50 216 8,50 216 8,50 64 2,50 178 7,00 140,0 5,50 105,0 4,12 22,5 0,88 1,6 0,06 20 0,75 

80 3 203 8,00 241 9,50 241 9,50 76 3,00 191 7,50 152,5 6,00 127,0 5,00 24,5 0,94 20 0,75 

100 4 229 9,00 292 11,50 292 11,50 101 4,00 229 9,00 190,5 7,50 157,0 6,19 24,5 0,94 20 0,75 

150 6 267 10,50 406 16,00 406 16,00 152 6,00 280 11,00 241,5 9,50 216,0 8,50 25,4 1,00 23 0,88 

200 8 292 11,50 495 19,50 495 19,50 203 8,00 343 13,50 298,5 11,75 170,0 10,62 28,5 1,12 23 0,88 

250 10 330 13,00 622 24,50 622 24,50 254 10,00 407 16,00 362,0 14,25 324,0 12,75 30,5 1,19 26 1,00 

300 12 356 14,00 699 27,50 699 27,50 305 12,00 483 19,00 432,0 17,00 381,0 15,00 32,0 1,25 26 1,00 

15 1/2 140 5,50 152 6,00 152 6,00 17 0,67 96 3,75 66,5 2,62 14,5 0,56 16 0,62 

20 3/4 152 6,00 178 7,00 178 7,00 23 0,91 118 4,62 82,5 3,25 16,0 0,56 20 0,75 

25 1 165 6,50 203 8,00 216 8,50 29 1,14 124 4,88 89,0 3,50 17,5 0,69 20 0,75 

32 1 1/4 178 7,00 216 8,50 229 9,00 35 1,38 134 5,25 98,5 3,88 19,5 0,75 20 0,75 

40 1 1/2 190 7,50 229 9,00 241 9,50 40 1,57 156 6,12 114,5 4,50 21,0 0,81 22 0,88 

50 2 216 8,50 267 10,50 267 10,50 52 2,05 166 6,50 127,0 5,00 22,5 0,88 20 0,75 

65 2 1/2 241 9,50 292 11,50 292 11,50 64 2,50 191 7,50 149,5 5,88 25,4 1,00 1,6 0,06 23 0,88 

80 3 283 11,12 318 12,50 318 12,50 76 3,00 210 8,25 168,0 6,62 28,5 1,12 23 0,88 

100 4 305 12,00 356 14,00 356 14,00 101 4,00 254 10,00 200,0 7,88 32,0 1,25 23 0,88 

150 6 403 15,88 445 17,50 445 17,50 152 6,00 318 12,50 270,0 10,62 37,0 1,44 23 0,88 

200 8 419 16,50 559 22,00 533 21,00 203 8,00 381 15,00 330,0 13,00 41,5 1,62 26 1,00 

250 10 457 18,00 622 24,50 622 24,50 254 10,00 445 17,50 387,5 15,25 48,0 1,88 29 1,12 

300 12 502 19,75 711 28,00 711 28,00 305 12,00 521 20,50 451,0 17,75 51,0 2,00 30 1,25 

15 1/2 165 6,50 

20 3/4 190 7,50 

25 1 216 8,50 

32 1 1/4 229 9,00 

40 1 1/2 241 9,50 

50 2 292 11,50 

80 3 356 14,00 

100 4 432 17,00 8 

150 6 559 22,00 

200 8 660 26,00 

15 1/2 216 8,50 

20 3/4 229 9,00 

25 1 254 10,00 

32 1 1/4 279 11,00 

40 1 1/2 305 12,00 

Same as gate 

Same as gate 

Same as class 300 

50 2 368 14,50 8 

Same as class150 



6,4 0,25 

6,4 0,25 

4 

8 

12 

4 

8 

12 

16 


12 

4 

* Lift and Ball Type 

Other Flange Facings also available on application 

Integrally Flanged Ends also available on application 

22 


AMERICAN NATIONAL STANDARD 

TAPER PIPE THREADS (NPT) 

AND SOCKET WELD (S.W) 

E 1 o 

L1 

ANSI B1.20.1 & B16.11 

Taper Pipe Threads-ANSI B1.20.1 

L2 

L1 

Flush by Hand 

L2 

0 0 

30 30 

0 

90 

E 1 

D 

TM 

ALFA 

L1 

L2 

E0= D-(0,050D+1.1)p 

*E0= E 0-0,625L 1 

L2=(0,80+6,8)p 

p= Picth 

Depth of thread=0,80p 

Total Taper 3/4-inch per Foot 

Tolerance by Hand 

One turn large or small from 

notch plug gauge or face of 

ring gauge. 

Notch flush with face of fitting 

If Chambered, notch flush with 

bottom of chamfer. 

Dimension in Inches 

D P E 0 E 1# L 1^ L 2~ 

Nominal Outside Number Picth Pitch diameter Pitch diameter Normal Length Height 

diameter of threads of thread at beginning at end engagement by of effective of thread 

pipe size of pipe per inch hand between of external of external and between external thread 

thread thread external and 

internal thread 

1/16 0,3125 27 0,03704 0,27118 0,28118 0,160 0,2611 0,02963 

1/8 0,405 27 0,03704 0,36351 0,3736 0,1615 0,2639 0,02963 

1/4 0,540 18 0,05556 0,47739 0,49163 0,2278 0,4018 0,04444 

3/8 0,675 18 0,05556 0,61201 0,62701 0,240 0,4078 0,04444 

1/2 0,840 14 0,07143 0,75843 0,77843 0,320 0,5337 0,05714 

3/4 1,050 11,5 0,07143 0,96768 0,98887 0,339 0,5457 0,05714 

1 1,315 11,5 0,08696 1,21363 1,23863 0,400 0,6828 0,06957 

1 1/4 1,660 11,5 0,08696 1,55713 1,58338 0,420 0,7068 0,06957 

1 1/2 1,900 11,5 0,08696 1,79609 1,82234 0,420 0,7235 0,06957 

2 2,375 11,5 0,08696 2,26902 2,29627 0,436 0,7565 0,06957 

# Also pitch diameter at gauging notch 

^ Also legth of plug gauge 

~ Also legth of ring gauge, and length from gauging notch to small end of plug gauge 

* For the 1/8-27 and 1/4-18 size&.E 1 approx. =D-(0.05D+0.827)p. 

Above information extracted from American National Standard for Pipe Threads, ANSI B1.20.1 

DIA 

DEPTH 

Socket Weld ANSI B16.11 

Nominal 

pipe size Inches 

Socket Bore DIA 

Mellimetres 

Socket Depth 

Min 

NPS DN Max Min Max Min Inch mm 

1/4 8 0,565 0,555 14,35 14,10 0,38 9,6 

3/8 10 0,700 0,690 17,78 17,53 0,38 9,6 

1/2 15 0,865 0,855 21,97 21,72 0,38 9,6 

3/4 20 1,075 1,065 27,30 27,05 0,50 12,7 

1 25 1,340 1,330 34,04 33,78 0,50 12,7 

1 1/4 32 1,685 1,675 42,80 42,54 0,50 12,7 

1 1/2 40 1,925 1,915 48,90 48,64 0,50 12,7 

2 50 2,416 2,406 61,37 61,11 0,62 15,8 

23 


AMERICAN NATIONAL STANDARD 

BUTT-WELD (B.W) AND STEEL PIPE 

Dimension of Steel Pipe 

TM 

ALFA 

Dimensions Table 

Dimension of Pipe (mm) 

Size Schedule 80 Schedule 160 Schedule xx-stg 

(in.) D3 D2 t D3 D2 t D3 D2 t 

1/4 13,7 7,7 3 - - - - - - 

3/8 17,1 10,7 3,2 - - - - - - 

1/2 21,3 13,9 3,7 21,3 11,8 4,8 21,3 6,4 7,5 

3/4 26,7 18,8 3,9 26,7 15,6 5,6 26,7 11,9 7,8 

1 33,4 24,4 4,5 33,4 20,7 6,4 33,4 15,2 9,1 

1 1/2 48,3 38,1 5,1 48,3 34 7,1 48,3 27,9 10,2 

2 60,3 49,3 5,5 60,3 42,9 8,7 60,3 38,2 11,1 

2 1/2 73 59 7 73 54 9,5 73 45 14 

3 88,9 73,7 7,6 88,9 66,6 11,1 88,9 58,4 15,2 

4 114,3 97,2 8,6 114,3 87,3 13,5 114,3 80,1 17,1 

Butt-Weld (B.W) Connections from ANSI B16.25 

A 

B 

Applicable for thickness of valve walls > 22.2 mm 

Applicable for thickness of valve walls < 22.2 mm 

Dimension d1 depends on requested Schedule 

Dimensional Data For Standard & Scedule Pipe 

PIPE 

SIZE 1/8 1/4 3/8 1/2 3/4 1 1 1/4 1 1/2 2 2 1/2 3 3 1/2 4 5 6 8 10 12 

Outside Dia 0,405 0,540 0,675 0,840 1,050 1,315 1,650 1,900 2,375 2,875 3,500 4,000 4,500 5,563 6,625 8,625 10,750 12,750 

0,269 0,364 0,493 0,622 0,824 1,049 1,380 1,610 2,067 2,469 3,068 3,548 4,026 5,047 6,065 7,981 10,020 12,000 

Standard 

0,68 0,88 0,091 0,109 0,113 0,133 0,140 0,145 0,154 0,203 0,216 0,226 0,237 0,258 0,280 0,322 0,365 0,375 

0,24 0,42 0,57 0,85 1,13 1,68 2,27 2,72 3,65 5,79 7,58 9,11 10,79 14,62 18,97 28,55 40,48 49,56 

Extra 0,215 0,302 0,423 0,546 0,742 0,957 1,278 1,500 1,939 2,323 2,900 3,364 3,826 4,813 5,761 7,625 9,75 11,75 

Heavy 

0,095 0,119 0,126 0,147 0,154 0,179 0,191 0,200 0,218 0,276 0,300 0,318 0,337 0,375 0,432 0,500 0,500 0,500 

0,31 0,54 0,74 1,09 1,47 2,17 3,00 3,63 5,02 7,66 10,25 12,51 14,98 20,78 28,57 43,39 54,74 65,42 

Double 0,252 0,434 0,599 0,896 1,100 1,503 1,771 2,300 2,728 3,152 4,063 4,897 6,875 

Extra 0,294 0,308 0,358 0,382 0,400 0,436 0,552 0,600 0,636 0,674 0,750 0,864 0,875 

Heavy 1,71 2,44 3,66 5,21 6,41 9,03 13,70 18,58 22,85 27,54 38,55 53,16 72,42 

Schedule 

10 

Schedule 8,125 10,250 12,250 

0,250 0,250 0,250 

20 

22,7 28,04 33,38 

Schedule 8,071 10,136 12,090 

0,277 0,307 0,330 

30 

24,7 34,24 43,77 

Schedule 0,269 0,364 0,493 0,622 0,824 1,049 1,380 1,610 2,067 2,469 3,068 3,548 4,02 5,047 6,065 7,981 10,020 11,938 

0,068 0,088 0,091 0,109 0,113 0,133 0,140 0,145 0,154 0,203 0,216 0,226 0,237 0,258 0,280 0,322 0,365 0,406 

40 

0,24 0,42 0,57 0,85 0,85 1,13 2,27 2,72 3,65 5,79 7,58 9,11 10,79 14,62 18,97 28,55 40,48 53,53 

Schedule 7,813 9,750 11,626 

0,406 0,500 0,562 

60 

35,64 54,74 73,16 

Schedule 0,215 0,302 0,423 0,546 0,742 0,957 1,278 1,500 1,939 2,323 2,900 3,364 3,826 4,813 5,761 7,625 9,564 11,376 

0,950 0,119 0,126 0,147 0,154 0,179 0,191 0,200 0,218 0,276 0,300 0,318 0,337 0,375 0,432 0,500 0,593 0,687 

80 

0,31 0,54 0,74 1,09 1,47 2,17 3,00 3,63 5,02 7,66 10,25 12,51 14,98 20,78 28,57 43,39 64,33 88,51 

Schedule 7,439 9,314 11,064 

0,593 0,718 0,843 

100 

50,87 76,93 107,20 

Schedule 3,624 4,563 5,501 7,189 9,064 10,750 

0,438 0,500 0,562 0,718 0,843 1,000 

120 

193 27,04 36,39 60,63 89,2 125,49 

Schedule 7,001 8,750 10,500 

0,812 1,000 1,125 

140 

67,76 104,13 139,68 

Schedule 0,466 0,614 0,815 1,160 1,338 1,689 2,125 2,624 3,438 4,313 5,189 6,813 8,500 10,126 

0,187 0,218 0,250 0,250 0,281 0,343 0,375 0,438 0,531 0,625 0,718 0,906 1,125 1,312 

160 

1,30 1,94 2,84 3,76 4,86 7,44 10,01 14,32 22,51 32,96 45,30 74,69 115,65 160,27 

Inside Dia Wall Thick Wt.Per Ft. 

All dimensions are inches 

Carbon Steel Pipe-Conforms to ANSI B36.10 Standards. 

Stainless Steel Pipe-Conforms to ANSI B36.19 Standards. 

24 


FIG. 

No. 

HOW TO ORDER ( ALFA FORGED STEEL ) 

GATE, GLOBE, & CHECK 

01" A G 08 T L 

API 602 STAND 

- A10 - HW - R 2G B 

Desc : 

Valve 

Size 

Brand 

Valve 

Identi - 

fication 

Pressure 

Rating 

Connec - 

tion Type 

Trim 

Body 

- - 

Material 

Design 

Operator 

- 

Port 

Wedge / 

Disc 

Type 

Modification 

DESCRIPTION : 1 in ALFA GATE VALVE, ANSI CLASS 800, SCREWED END, TRIM MATERIAL : 13% Cr. + HARDFACED, BODY MATERIAL 

: ASTM A105, HANDWHEEL OPERATED, REDUCED PORT, SOLID WEDGE, BOLTED BONNET 

0Q 

0H 

0T 

01 

1H 

02 

2H 

03 

04 

VALVE 




1/4" 

1/2" 

3/4" 

1" 

1-1/2" 

2" 

2-1/2" 

3" 

4" 

ALFA 

G 

L 

C 

GATE 

GLOBE 

CHECK 

01 

03 

06 

08 

09 

15 

25 

J1 

J2 

J4 

J6 








JIS 10K 

JIS 20K 

JIS 40K 

JIS 63K 

P 

F 

R 

B 

S 

T 

C 

A 

FLAT FACE 

RAISED FACE 

RING JOINT 

BUTT WELD 

SOCKET WELD 

SCREWED 

COMBINATION 

SPECIAL 

TRIM 

BODY MATERIAL 

API No. 

1 

2 

3 

5 

7 

8 

9 

10 

11 

12 

13 

14 

- 

- 

NOMINAL TRIM 

F6 

304 

F310 

HARDFACED 

F6 and HARD F6 

F6 and HARDFACED 

MONEL 

316 

MONEL and HARDFACED 

316 and HARDFACED 

ALLOY 20 

ALLOY 20 and HF 

NACE 

SPECIAL 

ALFA 

CODE 

A 

B 

C 

D 

E 

L 

M 

R 

S 

T 

U 

V 

X 

Y 

WEDGE/DISC 

SEATING 

13 Cr 

18 Cr - 8Ni 

25Cr - 20Ni 


13 Cr 

13 Cr 

Ni - Cu Alloy 

18 Cr - 8Ni - 2Mo 

Ni - Cu Alloy 

18 Cr - 8Ni - 2Mo 

19 Cr - 29Ni 

19 Cr - 29Ni 

Note 

Special 

SEAT SURFACE 

STEM/BUSHING 

HINGE PIN 

13 Cr 

13 Cr 

18 Cr - 8Ni 18 Cr - 8Ni 

25Cr - 20Ni 25Cr - 20Ni 


13 Cr + Hard 13 Cr 13 Cr 


Ni - Cu Alloy Ni - Cu Alloy 

18 Cr - 8Ni - 2Mo 18 Cr - 8Ni - 2Mo 

Ni - Cu Alloy Ni - Cu Alloy 

18 Cr-8Ni-2Mo + St #6 18 Cr - 8Ni - 2Mo 

19 Cr - 29Ni 19 Cr - 29Ni 

19 Cr - 29Ni + Stell. #6 19 Cr - 29Ni 

Note 

Note 

Special 

Special 

F1 

F6 

F6N 

F9 

F11 

F22 

A10 

LF2 

304 

304L 

316 

316L 

317 

317L 

F321 

F347 

F51 

F57 

SP 







ASTM A105 



ASTM A182 Gr. F304L 







ASTM A182 Gr. F51(Duplex) 


SPECIAL ALLOY 


HW 

HO 

PO 

MO 

Hand Wheel 




F 

R 

S 

Full Port 

Reduced Port 

Special port 

1G 

2G 

3G 

1L 

2L 

3L 

4L 

5L 

1C 

2C 

3C 

4C 

5C 


Solid Wedge 

Split Wedge 

Plug Disc 

Ball Disc 


Needle Disc 

V-Port Disc 

Swing Type 

Ball Type 

Ball Spring 

Piston Type 


B 

W 

C 

D 

N 

P 

R 

T 

N 

PS 

EB 

CY 

TC 

YC 

YL 



: By-pass 

: Drain 








: Cryogenic 


: Y - Check 

: Y - Globe 

25 


ALFATM 

FORGING & CASTING BALL VALVES 

SMALL BORE 


CARBON STEEL/STAINLESS STEEL 

FLOATING TYPE 


Material Parts 

TM 

ALFA 

Table of Main Parts Material 

No. 

1 Body A105 

2 Body Cap A105 

A10 CF8 CF8M 

A182 Gr. F304 or 

A351 Gr. CF8 

A182 Gr. F304 or 

A351 Gr. CF8 

A182 Gr. F316 or 

A351 Gr. CF8M 

A182 Gr. F316 or 

A351 Gr. CF8M 

3 Ball A276 Tp. 304 A276 Tp. 304 A276 Tp. 316 

4 Seat Reinforced TFE Reinforced TFE Reinforced TFE 

5 Seat Retainer A276 Tp. 304 A276 Tp. 304 A276 Tp. 316 

6 O-Ring NBR VITON VITON 

7 Spring 

PARTS 

304 SS or 

INCONEL X-750 

MATERIAL CODE 

304 SS or INCONEL 

X-750 

316 SS or 

INCONEL X-750 

8 Stem 304 316 316 

9 Bearing PTFE PTFE PTFE 

10 Washer NBR 0-RING VITON VITON 

11 Stud A193 Gr.B7 A193 Gr.B8 A193 Gr.B8 

12 Nut A194 Gr.2H A194 Gr.8 A194 Gr.8 

13 Thrust Bearing TFE TFE TFE 

14 Thrust Washer 316 SS 316 SS 316 SS 

15 Gland Packing TFE TFE TFE 

16 Gland Flange 304 SS 304 SS 304 SS 

17 Gland A105 .Zn A105 .Zn 304 SS 

18 Head Bolt A193 Gr.B7 A193 Gr.B7. Zn A193 Gr.B7. Zn 

19 Stopper A3.Zn 304 304 

20 Lever Carbon Steel Carbon Steel Carbon Steel 

21 Snap Ring Carbon Steel 304 SS 304 SS 

CLASS 600 

NOMINAL SIZE: 15 mm - 40 mm 

(½ in ~ 1 ½ in) 

CLASS 900, 1500 

NOMINAL SIZE: 15 mm - 25 mm 

(½ in ~ 1in) 

21 

16 

15 

14 

13 

18 

19 

17 

20 

This product is a high pressure, small-size ball valve comprising a stainless 

steel and carbon steel body. The structure is of a floating ball system, and 

PTFE as the principal material is used for the seat, stem bearing, and gland 

packing. Tight sealings and smooth operations are possible even under 

high pressure 

8 

9 

4 

5 

6 7 10 

11 

1 

11 

7 

6 

5 

4 

3 

12 

2 

2 


CARBON STEEL/STAINLESS STEEL 

FLOATING TYPE 


TM 

ALFA 

ANSI Class 600,900,1500 

Nominal Size 

15 mm - 40 mm (1/2 in ~ 1 1/2 in) 

AB06F2TF 

AB09F2TF 

AB15F2TF 


Class 600, Full Bore, Split Body 2 Pcs, 

Floating Type, RF Flange Ends 





Principal Material 

Parts 

Application 

Carbon Steel Stainless Steel 

Body 

Ball 

Stem 

Seat 

A105 

304 SS 

410 SS 

R. TFE 

304 SS 

304 SS 

304 SS 

R. TFE 

316 SS 

316 SS 

316 SS 

R. TFE 

Stem 

Body 

Ball 

Seat 

Dimension and Weights Table 

CLASS 600 (carbon/ stainless steel, RF Flange) 

Nominal Size 

Ball Bore L (RF) H W 

Mass 

Inch mm (Kg) 

1/2" X 1/2" 15 X 15 13 165 74,5 160 3,5 

CLASS 600 

W 

3/4" X 3/4" 20 X 20 19 190 79,5 160 6 

1" X 1" 25 X 25 25 216 101 230 8 

1 1/2" X 1 1/2" 40 X 40 38 241 111 230 13 

H 


Nominal Size 

Mass 

Ball Bore L (RF) H W 

Inch mm (Kg) 

L 

1/2" X 1/2" 15 X 15 13 216 138 160 10 

3/4" X 3/4" 20 X 20 19 229 141 230 11 

1" X 1" 25 X 25 22 254 143 230 14 

CLASS 900, 1500 

W 


Nominal Size Ball 

L (RF) H W 

Mass 

Inch mm Bore (Kg) 

1/2" X 1/2" 15 X 15 13 216 138 160 10 

3/4" X 3/4" 20 X 20 19 229 144 230 11 

1" X 1" 25 X 25 22 254 147 230 12 

L 

H 

3 


FORGED STEEL BALL VALVES 

TM 

ALFA 

Two-Piece & Three-Piece 

Body Configurations 

Design Types 

Bore Types 

Connection Types 

: End Entry, 2 Pieces and 3 Pieces. 

: Floating. 

: Full Bore ; Reduced Bore. 

: Threaded, Socket Welded & Butt Weld. 

Fire Safe Design, Anti Static and Blowout Proof Stem. 

FULL BORE BALL VALVE 

TWO PIECE DESIGN 

REDUCED BORE BALL VALVE 

TWO PIECE DESIGN 

FULL BORE & REDUCED BORE BALL VALVE 

THREE PIECE DESIGN 

4 



MATERIAL PARTS 

TM 

ALFA 

ANSI Class 800, 1500, 2500 


Design Types 

Bore Types 



: Floating. 




MAIN STANDARDS : 

Basic Design Compliance : ANSI B16.34, API 608, BS 5351 

Threaded End : ANSI B1.20.1 

Socket Weld End : ANSI B16.11 

Butt Weld End : ANSI B16.25 

Test and Inspection : API 6D or API 598 

Lever 

Lever Nut 

Washer Spring 

Gland Packing 

Packing 

Stem O Ring 

Body Gasket 

Body End 


Body and Trim Material 

Body 

End 

Ball 

Seat 

Stem 

Body gasket 

Stem O-Ring 

Packing 

Gland Packing 

Washer Spring 

Stopper 

Lever Nut 

Lever 

A10-SSR 

ASTM A105 

ASTM A105 

Body 

Ball 

Stem 

LF2-SSR 



316 SS 

Reinforced (Glass) PTFE 

316 SS 

Reinforced (Glass) PTFE 

Viton 

PTFE + Glass - Grafoil 

PTFE 

Stainless Steel 

Carbon Steel 

Carbon Steel 

Carbon Steel 

Seat 

F316-SSR 



5 



Class 800 (2000 WOG) 

TM 

ALFA 


Design Types 

Bore Types 



: Floating. 




W 

W 

H 

H 

O O 

37 30 

D 

L 

L 

E 

Threaded 

ANSI B1.20.1 or BSP 

Threaded 


Socket Weld 

ANSI B16.11 

Butt Weld 

sch.40 - sch.80 

to ANSI B16.25 

Socket with nipple 

on request 

TWO PIECE TYPES 

THREE PIECE TYPES 

END CONNECTION TYPES 

AB08F2LT 

AB08F2LS 

AB08F2LB 

AB08F3LT 

AB08F3LS 

AB08F3LB 


ANSI Class 800, End Entry 2 Pieces Design, Floating Type, Threaded End 

ANSI Class 800, End Entry 2 Pieces Design, Floating Type, Socket Weld End 

ANSI Class 800, End Entry 2 Pieces Design, Floating Type, Butt Weld End 




Class 800 (Forged Steel) Dimension and Weights (mm) 

3 Pcs Construction 2 Pcs Construction Design 

Nominal Size 

Ball Bore 

Full Bore Reduced Bore Full Bore Reduced Bore 

L 

H 

W 

Weights 

in mm in mm in mm in mm in mm in mm in mm lb Kg 

1/4" 6 - - 0,39 10 - - 3,39 86 2,99 76 6,30 160 1,8 0,82 

1/2" 15 1/2" 15 0,55 14 0,39 10 3,62 92 3,07 78 6,30 160 2,8 1,27 

3/4" 20 3/4" 20 0,75 19 0,55 14 4,41 112 3,86 98 6,89 175 5,6 2,54 

1" 25 1" 25 0,98 25 0,75 19 5,04 128 4,02 102 6,89 175 8,2 3,72 

1 1/4" 32 1 1/4" 32 1,28 32,5 0,98 25 5,35 136 4,72 120 9,25 235 11,6 5,26 

1 1/2" 40 1 1/2" 40 1,50 38 1,28 32,5 5,98 152 4,96 126 9,25 235 16,2 7,35 

2" 50 2" 50 2,01 51 1,50 38 7,17 182 6,38 162 12,40 315 25,2 11,43 

1/4" 6 - - 0,39 10 - - 2,68 68 2,99 76 6,30 160 1,60 0,73 

1/2" 15 1/2" 15 0,55 14 0,39 10 2,99 76 3,07 78 6,30 160 2,40 1,09 

3/4" 20 3/4" 20 0,75 19 0,55 14 3,46 88 3,86 98 6,89 175 5,00 2,27 

1" 25 1" 25 0,98 25 0,75 19 4,41 112 4,02 102 6,89 175 7,40 3,36 

1 1/4" 32 1 1/4" 32 1,28 32,5 0,98 25 4,88 124 4,72 120 9,25 235 10,80 4,90 

1 1/2" 40 1 1/2" 40 1,50 38 1,28 32,5 5,59 142 4,96 126 9,25 235 15,20 6,90 

2" 50 2" 50 2,01 51 1,50 38 6,50 165 6,38 162 12,40 315 24,50 11,12 

2 1/2" 65 2 1/2" 65 2,56 65 2,01 51 8,46 215 7,01 178 12,40 315 26,50 12,02 

3" 80 3" 80 3,07 78 2,56 65 11,22 285 7,01 178 12,40 315 35,60 16,15 

- - 4" 80 - - 3,07 78 11,22 285 7,87 200 12,40 315 37,50 17,01 

6 



Class 1500 (3000 WOG) 

TM 

ALFA 


Design Types 

Bore Types 



: Floating. 




W 

W 

H 

H 

O O 

37 30 

D 

L 

L 

E 

Threaded 


Threaded 


Socket Weld 

ANSI B16.11 

Butt Weld 

sch.40 - sch.80 



on request 


THREE PIECE TYPES 


AB15F2LT 

AB15F2LS 

AB15F2LB 

AB15F3LT 

AB15F3LS 

AB15F3LB 








Class 1500 (Forged Steel) Dimensions & Weight Table (mm) 

3 Pcs Construction 2 Pcs Construction Design 

Nominal Size 

Ball Bore 

Full Bore Reduced Bore Full Bore Reduced Bore 

L 

H 

W 

Weights 

in mm in mm in mm in mm in mm in mm in mm lb Kg 

1/4" 6 - - 0,39 10 - - 3,39 86 2,99 76 6,30 160 1,8 0,82 

1/2" 15 1/2" 15 0,55 14 0,39 10 3,62 92 3,07 78 6,30 160 2,8 1,27 

3/4" 20 3/4" 20 0,75 19 0,55 14 4,41 112 3,86 98 6,89 175 5,6 2,54 

1" 25 1" 25 0,98 25 0,75 19 5,04 128 4,02 102 6,89 175 8,2 3,72 

1 1/4" 32 1 1/4" 32 1,28 32,5 0,98 25 5,35 136 4,72 120 9,25 235 11,6 5,26 

1 1/2" 40 1 1/2" 40 1,50 38 1,28 32,5 5,98 152 4,96 126 9,25 235 16,2 7,35 

2" 50 2" 50 2,01 51 1,50 38 7,17 182 6,38 162 12,40 315 25,2 11,43 

1/4" 6 - - 0,39 10 - - 2,68 68 2,99 76 6,30 160 1,6 0,73 

1/2" 15 1/2" 15 0,55 14 0,39 10 2,99 76 3,07 78 6,30 160 2,4 1,09 

3/4" 20 3/4" 20 0,75 19 0,55 14 3,46 88 3,86 98 6,89 175 5 2,27 

1" 25 1" 25 0,98 25 0,75 19 4,41 112 4,02 102 6,89 175 7,4 3,36 

1 1/4" 32 1 1/4" 32 1,28 32,5 0,98 25 4,88 124 4,72 120 9,25 235 10,8 4,90 

1 1/2" 40 1 1/2" 40 1,50 38 1,28 32,5 5,59 142 4,96 126 9,25 235 15,2 6,90 

2" 50 - - 2,01 51 1,50 38 6,50 165 6,38 162 12,40 315 24.5 

2 1/2" 65 - - 2,56 65 2,01 51 8,46 215 7,01 178 12,40 315 26.5 

3" 80 - - 3,07 78 2,56 65 11,22 285 7,01 178 12,40 315 35.6 

7 



Class 2500 (5000 WOG) 

TM 

ALFA 


Design Types 

Bore Types 


: End Entry, 2 Pieces. 

: Floating. 

: Full Bore. 



W 

H 

O O 

37 30 

D 

L 

E 

Threaded 


Socket Weld 

ANSI B16.11 

Butt Weld 

sch.40 - sch.80 



on request 



AB25F2LT 

AB25F2LS 

AB25F2LB 





Class 2500 (Forged Steel) Dimension and Weights (mm) 

Design 

Nominal Size 

Full Bore 

in mm 

in 

Ball Bore 

Full Bore 

mm 

L 

H 

W Weights 

in mm in mm in mm lb Kg 

1/2" 

15 

0.55 

14 

4,41 112 3,86 98 6,89 175 2,8 1,27 

2 Pcs 

3/4" 

1" 

20 

25 

0.74 

0.98 

19 

25 

5,04 128 4,41 112 9,25 235 5,6 2,54 

5,35 136 4,96 126 9,25 235 8,2 3,72 

Socket Weld Dimensions : 

Dimensions 

1/4" 1/2" 3/4" 1" 1 1/4" 1 1/2" 2" 2 1/2" 3" 4" 

D 

E 

inch 

mm 

inch 

mm 

0,56 0,85 1,06 1,33 1,68 1,91 2,41 2,91 3,53 4,54 

14,10 21,70 27,05 33,80 42,64 48,64 61,10 73,81 89,78 115,44 

0,44 0,50 0,57 0,63 0,69 0,75 0,87 1,00 1,00 1,00 

11,10 12,70 14,50 16,00 17,50 19,00 22,00 25,40 25,40 25,40 

8 




TM 

ALFA 

FLOW COEFFICIENT (cv) 

SIZE 

(in) 

COEFFICIENT (cv) 

Full Bore 

Red. Bore 

1/4 8 - 

1/2 12 8 

3/4 33 12 

1 48 33 

1 1/4 83 48 

1 1/2 120 83 

2 250 120 

OPERATING TORQUE WITH PTFE SEATS 

SIZE 275 psi 500 psi 720 psi 1000 psi 1500 psi 2000 psi 

Full Bore Reduced Bore Kgm ft.lb Kgm ft.lb Kgm ft.lb Kgm ft.lb Kgm ft.lb Kgm ft.lb 

1/4 1/2 0,41 3,00 0,40 3,00 0,40 3,00 0,40 3,00 0,50 3,50 0,80 6,00 

1/2 3/4 0,69 5,00 0,70 5,00 0,70 5,00 0,70 5,00 0,80 6,00 1,70 12,50 

3/4 1 1,03 7,50 1,00 7,50 1,00 7,50 1,40 10,00 1,80 13,00 3,50 25,00 

1 1 1/4 1,38 10,00 1,70 12,50 2,10 15,00 2,30 16,50 3,50 25,00 5,70 41,50 

1 1/4 1 1/2 1,72 12,50 2,10 15,00 2,80 20,00 3,50 25,00 4,10 30,00 7,90 57,00 

1 1/2 2 2,75 20,00 3,50 25,00 4,80 35,00 6,10 44,00 6,90 50,00 13,80 100,00 

2 - 5,80 42,00 7,60 55,00 10,40 75,00 16,60 120,00 24,90 180,00 29,00 210,00 

9 



SIZE 

FIG. No. 

08" 

A 

B 

06 F 2 T 


- GO - 

F 

Valve 

Body 

Connec - 

Pressure Bore 

Design 


Configu - 

tion 

Rating Type 

Type 

- 

cation 

ration 

Type 

Body 

Material 

- 

Trim 

Material 

Seat 

Material 

Design 

- Opera- 

- 

tor 

Modification 



VALVE SIZE 

BRAND 

VALVE 



0Q 1/4" 


0H 1/2" 


0T 3/4" 


01 1" 


1H 1 1/2" 


02 2" 



2H 2 1/2" 


03 3" 

04 4" J1 

JIS 10K 

- 

- J2 

JIS 20K 

36 36" 

J4 

JIS 40K 

J6 

JIS 63K 

F 

R 

S 

BORE TYPE 

FULL PORT 

REDUCED 

PORT 

SPECIAL 

PORT 

WCB 

C5 

WC6 

WC9 

C12 

LCB 

LCC 

LC3 

CF8 

CF8M 

CF3 

CF3M 

CF8C 

CN7M 

Mo 

CD3 

CD3MW 

INC 

TIN 


1 WELDED BODY 




















NICKEL ALLOY 

TITANIUM 

BODY MATERIAL 

L 

T 

DESIGN TYPE 

FLOATING TYPE 

TRUNNION TYPE 

TRIM MATERIAL 

F1 


F6 


CODE BALL 

F6N 


SF 

304 SS 

F9 


SS 

316 SS 

F11 


ST 

317 SS 

F22 



A10 

ASTM A105 


LF2 



304 





316 




AT 

Alloy 20 

317 


ML 

Monel 


IL 

Inconnel 

F321 


TT Titanium 

F347 




SE 

Stellited 

F57 


EN 

ENP 

SP 



P 

F 

R 

B 

S 

T 

C 

A 


FLAT FACE 

RAISED FACE 

RING JOINT 

BUTT WELD 

SOCKET WELD 

SCREWED 

COMBINATION 

SPECIAL 

STEM 

304 SS 

316 SS 

317 SS 

316 SS 

304 SS 

410 SS 

316 SS 

304 SS 

410 SS 

Alloy 20 

Monel 

Inconnel 

Titanium 

Hastelloy C 

Stellited 

ENP 


S E A T 



F 

PTF E 


N 

N 

N ylo n 


V 

Vito n 

B 

Buna -N 

E 

EPDM 

H 

UH M W PE 


P 

PEEK 

S 


H W 

Ha nd W he el 

SX 


L O 

G O 

H O 




N 

B 

S 






M O 


F 


CW 


10 


ALFATM 

FORGING TRUNION BALL VALVES 

SMALL & BIG BORE 


FORGED STEEL 3 PIECES 

BALL VALVES 

Product Overview 

TM 

ALFA 

Functions : 

Block & Bleed 

Self-Relief Feature 

Tight Shut-Off 

Fire-Safe 

Trough-Conduit 

Quick Seal Recovery 

Seat Seal Design 

Sealing Of Gland Assembly 

Drain Plug 

Extensions 

Operators 

End Connection 

Body Material 

Seat Material 

Control Systems 

Operational Rebiability 

Resistance To Piping Stress 



BALL VALVES 

Basic Design 

TM 

ALFA 

11 

9 

21 

30 29 

16 15 

22 

24 

19 

17 

32 

20 

8 

6 

36 

3 

4 

38 37 

34 

41 

42 

31 

33 

39 

27 

28 

33 

35 

7 

13 

14 

26 25 

LOCK & CHAIN 

Standard Parts Material Table 

No. 

HCr : HARD CHROMIUM PLATING 

40 

2 17 19 24 10 5 23 27 1 18 12 

28 

ALFA STANDARD 

TRIM: A182-F6 TRIM: 304 TRIM: 316 TRIM: ENP NACE MR-0175 

FOR LOW TEMP 

(CARBON STEEL BALL) (-46 O C) 

1 Body ASTM A105 ASTM A105 ASTM A105 ASTM A105 ASTM A105 ASTM A105 A350 - LF2 

2 Cap / End ASTM A105 ASTM A105 ASTM A105 ASTM A105 ASTM A105 ASTM A105 A350 - LF2 

3 Ball ASTM A105 + HCr ASTM A182 - F6a ASTM A351-CF8 ASTM A351-CF8M ASTM A105 + ENP ASTM A105 + HCr A350 - LF2 + Zn Plated 

4 Stem ASTM A276-410 + HCr ASTM A276-410 + HCr ASTM A276-304 + HCr ASTM A276-316 + HCr ASTM A276-410 + ENP ASTM A276-410 + HCr ASTM A276-410 + HCr 

5 Lower Stem ASTM A276-410 ASTM A276-410 ASTM A276-304 ASTM A276-316 ASTM A276-410 + ENP ASTM A276-410 ASTM A276-410 

6 Seat Reinforced TFE Reinforced TFE Reinforced TFE Reinforced TFE Reinforced TFE Reinforced TFE Reinforced TFE 

7 Seat Retainer ASTM 105 + Zn Plated ASTM A182 - F6a ASTM A276-304 ASTM A276-316 ASTM A105 + ENP ASTM 105 + Zn Plated A350 - LF2 + Zn Plated 

8 Coil (Plate) Spring INCONEL X-750 INCONEL X-750 INCONEL X-750 INCONEL X-750 INCONEL X-750 INCONEL X-750 INCONEL X-750 

9 Gland Flange ASTM 105 + Zn Plated ASTM 105 + Zn Plated ASTM 105 + Zn Plated ASTM 105 + Zn Plated ASTM A105 + ENP ASTM 105 + Zn Plated A350 - LF2 + Zn Plated 

10 Lower Cover ASTM 105 + Zn Plated ASTM 105 + Zn Plated ASTM 105 + Zn Plated ASTM 105 + Zn Plated ASTM A105 + ENP ASTM 105 + Zn Plated A350 - LF2 + Zn Plated 

11 Packing Gland ASTM 105 + Zn Plated ASTM 105 + Zn Plated ASTM 105 + Zn Plated ASTM 105 + Zn Plated ASTM A105 + ENP ASTM 105 + Zn Plated A350 - LF2 + Zn Plated 

12 Body O-Ring VITON VITON VITON VITON VITON VITON VITON 

13 Seat O-Ring VITON VITON VITON VITON VITON VITON VITON 

14 Seat O-Ring VITON VITON VITON VITON VITON VITON VITON 

15 Stem O-Ring VITON VITON VITON VITON VITON VITON VITON 

16 Stem Back Ring Reinforced TFE Reinforced TFE Reinforced TFE Reinforced TFE Reinforced TFE Reinforced TFE Reinforced TFE 

17 Gland O-Ring VITON VITON VITON VITON VITON VITON VITON 

18 Body Gasket Metal & Flexible Graphite Metal & Flexible Graphite Metal & Flexible Graphite Metal & Flexible Graphite Metal & Flexible Graphite Metal & Flexible Graphite Metal & Flexible Graphite 

19 Lower Cover Gasket Metal & Flexible Graphite Metal & Flexible Graphite Metal & Flexible Graphite Metal & Flexible Graphite Metal & Flexible Graphite Metal & Flexible Graphite Metal & Flexible Graphite 

20 Body Packing Flexible Graphite Flexible Graphite Flexible Graphite Flexible Graphite Flexible Graphite Flexible Graphite Flexible Graphite 

21 Stem Packing Flexible Graphite Flexible Graphite Flexible Graphite Flexible Graphite Flexible Graphite Flexible Graphite Flexible Graphite 

22 Stem Thrust Bearing Metal Backed PTFE Metal Backed PTFE Metal Backed PTFE Metal Backed PTFE Metal Backed PTFE Metal Backed PTFE Metal Backed PTFE 

23 

PART NAME 

Lower Stem Thrust 

Bearing 

MATERIAL 

Metal Backed PTFE Metal Backed PTFE Metal Backed PTFE Metal Backed PTFE Metal Backed PTFE Metal Backed PTFE Metal Backed PTFE 

24 Stem Bearing Metal Backed PTFE Metal Backed PTFE Metal Backed PTFE Metal Backed PTFE Metal Backed PTFE Metal Backed PTFE Metal Backed PTFE 

25 Body Stud ASTM A193-B7 ASTM A193-B7 ASTM A193-B7 ASTM A193-B7M ASTM A193-B7M ASTM A193-B7M A320 - L7 + Zn Plated 

26 Body Nut ASTM A194-2H ASTM A194-2H ASTM A194-2H ASTM A194-2HM ASTM A194-2HM ASTM A194-2HM A194 - 7 - Zn Plated 

27 Lower Cover Stud ASTM A193-B7 ASTM A193-B7 ASTM A193-B7 ASTM A193-B7M ASTM A193-B7M ASTM A193-B7M A320 - L7 + Zn Plated 

28 Lower Cover Nut ASTM A194-2H ASTM A194-2H ASTM A194-2H ASTM A194-2HM ASTM A194-2HM ASTM A194-2HM A194 - 7 - Zn Plated 

29 Mounting Pad Stud ASTM A193-B7 ASTM A193-B7 ASTM A193-B7 ASTM A193-B7M ASTM A193-B7M ASTM A193-B7M A320 - L7 + Zn Plated 

30 Mounting Pad Nut ASTM A194-2H ASTM A194-2H ASTM A194-2H ASTM A194-2HM ASTM A194-2HM ASTM A194-2HM A194 - 7 - Zn Plated 

31 Actuator Bolt AISI 316 AISI 316 AISI 316 AISI 316 AISI 316 AISI 316 AISI 316 

32 Anti-Static Device ASTM A276 - 316 ASTM A276-316 ASTM A276-316 ASTM A276-316 ASTM A276-316 ASTM A276-316 ASTM A276-316 

33 Sealant Fitting Assembly Assembly Assembly Assembly Assembly Assembly Assembly 

34 Worm Gear Assembly Assembly Assembly Assembly Assembly Assembly Assembly 

35 Drain Valve ASTM 105 + Zn Plated ASTM 105 + Zn Plated ASTM 105 + Zn Plated ASTM 105 + Zn Plated ASTM 105 + Zn Plated ASTM 105 + Zn Plated A320 - L7 + Zn Plated 

36 Stem Key ASTM A194-2H ASTM A194-2H ASTM A194-2H ASTM A194-2HM ASTM A194-2HM ASTM A194-2HM A194 - 7 - Zn Plated 

37 Stem Key ASTM A194-2H ASTM A194-2H ASTM A194-2H ASTM A194-2HM ASTM A194-2HM ASTM A194-2HM A194 - 7 - Zn Plated 

38 Pin ASTM A105 ASTM A105 ASTM A105 ASTM A105 ASTM A105 ASTM A105 ASTM A105 

39 Hook ASTM A105 ASTM A105 ASTM A105 ASTM A105 ASTM A105 ASTM A105 ASTM A105 

40 Supporter Assembly Assembly Assembly Assembly Assembly Assembly Assembly 

41 Name Plate AISI 304 AISI 304 AISI 304 AISI 304 AISI 304 AISI 304 AISI 304 

42 Rivet AISI 304 AISI 304 AISI 304 AISI 304 AISI 304 AISI 304 AISI 304 

ENP : ELECTROLESS NICKEL PLATING 



Blow-Out Proof Stem ALFA Ball Valve 

TM 

ALFA 

BLOW-OUT PROOF STEM 

The stem of ball valve may blow out when the pressure running through the valve in the body cavity has risen. 

Therefore, to prevent such danger from taking place, the ALFA ball valve is provided with a stem flange in the lower part 

of the stem and so constructed that the stem may not blow out upwards. Event if the packing (thrust bearing) has burnt 

out in a fire or for any other reason, the internal pressure will bring the stem flange into close contact with the back seat 

of the valve body. Thus the fluid may be positively prevented from leaking through the packing so burnt out, in particular, 

the back seat at the stem flange will be requirement essential to the fire-safety of the valve. The design of an ordinary 

stem when the pressure in the body cavity should abnormally rise or a gland bolt should be loose or missing anyway, an 

ordinary stem which held with packing will blow out and the fluid will burst out. Besides, there are possibilities that such 

accident may take place upon maintenance. 

Stem Seal in ALFA Ball Valve 

Ordinary Stem 

Stem Bearing 

Trust Bearing 

Stem 

Gland Packing 

Body Back Seat 

Stem Flange 

Ball 

Gush Out 

the Fluid Media 

Body 

Ball 

To prevent galling while keeping the operational torque at the minimum level , the Stem employed with the stem-sliding portion aconsist of the stem bearing and thrust 

bearing, both made of Teflon as a base material. 



BALL VALVES 


TM 

ALFA 


AB01F3TF-A10-CER-LO 

AB01F3TR-A10-CER-LO 

AB01F3TB-A10-CER-LO 

AB01R3TF-A10-CER-LO 

AB01R3TR-A10-CER-LO 

AB01R3TB-A10-CER-LO 

AB01F3TF-A10-CER-GO 

AB01F3TR-A10-CER-GO 

AB01F3TB-A10-CER-GO 

AB01R3TF-A10-CER-GO 

AB01R3TR-A10-CER-GO 

AB01R3TB-A10-CER-GO 


Dimensions & Weights 

ALFA Ball, 150#, Full Bore, 3 Pcs Body, Trunnion, RF End, A105N Body, A105N+HCr Plated Ball, RTFE Seat, Lever Op. 

ALFA Ball, 150#, Full Bore, 3 Pcs Body, Trunnion, RTJ End, A105N Body, A105N+HCr Plated Ball, RTFE Seat, Lever Op. 

ALFA Ball, 150#, Full Bore, 3 Pcs Body, Trunnion, BW End, A105N Body, A105N+HCr Plated Ball, RTFE Seat, Lever Op. 

ALFA Ball, 150#, Reduce Bore, 3 Pcs Body, Trunnion, RF End, A105N Body, A105N+HCr Plated Ball, RTFE Seat, Lever Op. 

ALFA Ball, 150#, Reduce Bore, 3 Pcs Body, Trunnion, RTJ End, A105N Body, A105N+HCr Plated Ball, RTFE Seat, Lever Op. 

ALFA Ball, 150#, Reduce Bore, 3 Pcs Body, Trunnion, BW End, A105N Body, A105N+HCr Plated Ball, RTFE Seat, Lever Op. 

ALFA Ball, 150#, Full Bore, 3 Pcs Body, Trunnion, RF End, A105N Body, A105N+HCr Plated Ball, RTFE Seat, Gear Op. 

ALFA Ball, 150#, Full Bore, 3 Pcs Body, Trunnion, RTJ End, A105N Body, A105N+HCr Plated Ball, RTFE Seat, Gear Op. 

ALFA Ball, 150#, Full Bore, 3 Pcs Body, Trunnion, BW End, A105N Body, A105N+HCr Plated Ball, RTFE Seat, Gear Op. 

ALFA Ball, 150#, Reduce Bore, 3 Pcs Body, Trunnion, RF End, A105N Body, A105N+HCr Plated Ball, RTFE Seat, Gear Op. 

ALFA Ball, 150#, Reduce Bore, 3 Pcs Body, Trunnion, RTJ End, A105N Body, A105N+HCr Plated Ball, RTFE Seat, Gear Op. 

ALFA Ball, 150#, Reduce Bore, 3 Pcs Body, Trunnion, BW End, A105N Body, A105N+HCr Plated Ball, RTFE Seat, Gear Op. 

Note : 

Nominal Size Design L (RF) L (RTJ) L (BE) W1 H1 H2 E F F W Weight 

in mm Type in mm in mm in mm (mm) (mm) (mm) (mm) (mm) (mm) (Kg) 

1 1/2" 40 6,50 165 7,00 178 7,50 191 230 70 135 ---- ---- ---- 12 

2" X 1 1/2" 50 X 40 7,00 178 7,50 191 8,50 216 230 70 135 ---- ---- ---- 15 

Trunnion, 3 Pieces, 

Lever Operated 

2" 50 7,00 178 7,50 191 8,50 216 230 80 150 ---- ---- ---- 16 

3" X 2" 80 X 50 8,00 203 8,50 216 11,12 282 230 80 150 ---- ---- ---- 32 

3" 80 8,00 203 8,50 216 11,12 282 400 100 200 ---- ---- ---- 36 

4"X 3" 100 X 80 9,00 229 9,50 241 12,00 305 400 100 200 ---- ---- ---- 53 

4" 100 9,00 229 9,50 241 12,00 305 650 115 240 ---- ---- ---- 70 

6" X 4" 150 X 100 15,50 394 16,00 406 18,00 457 650 115 240 ---- ---- ---- 94 

6" 150 15,50 394 16,00 406 18,00 457 ---- 260 340 85 180 450 145 

8" X 6" 200 X 150 18,00 457 18,50 470 20,50 521 ---- 260 340 85 180 450 260 

8" 200 18,00 457 18,50 470 20,50 521 ---- 300 389 116 350 600 346 

10" X 8" 250 X 200 21,00 533 21,50 546 22,00 559 ---- 300 389 116 350 600 375 

10" 250 21,00 533 21,50 546 22,00 559 ---- 325 405 116 350 600 540 

12" X 10" 300 X 250 24,00 610 24,50 622 25,00 635 ---- 325 405 116 350 600 675 

12" 300 24,00 610 24,50 622 25,00 635 ---- 365 455 171 420 800 850 

14" X 12" 350 X 300 27,00 686 27,50 699 30,00 762 ---- 365 455 171 420 800 890 

Trunnion, 3 Pieces, Gear Operated 

14" 350 27,00 686 27,50 699 30,00 762 ---- 400 490 171 420 800 1060 

16" X 12" 400 X 300 30,00 762 30,50 775 33,00 838 ---- 365 455 171 420 800 1200 

16" X 14" 400 X 350 30,00 762 30,50 775 33,00 838 ---- 400 490 171 420 800 1300 

16" 400 30,00 762 30,50 775 33,00 838 ---- 440 550 257 400 800 1380 

18" X 14" 450 X 350 34,00 864 34,50 876 36,00 914 ---- 400 490 171 420 800 1400 

18" X 16" 450 X 400 34,00 864 34,50 876 36,00 914 ---- 440 550 257 400 800 1455 

18" 450 34,00 864 34,50 876 36,00 914 ---- 500 620 257 400 800 1910 

20" X 16" 500 X 400 36,00 914 36,50 927 39,00 991 ---- 440 550 257 400 800 1810 

20" X 18" 500 X 450 36,00 914 36,50 927 39,00 991 ---- 500 620 257 400 800 2130 

20" 500 36,00 914 36,50 927 39,00 991 ---- 555 680 257 400 800 2300 

22" X 18" 550 X 450 40,00 1016 - - 43,00 1092 ---- 500 620 257 400 800 2315 

22" X 20" 550 X 500 40,00 1016 - - 43,00 1092 ---- 555 680 257 400 800 2400 

22" 550 40,00 1016 - - 43,00 1092 ---- 635 806 150 410 800 2435 

24" X 20" 600 X 500 42,00 1067 42,50 1080 45,00 1143 ---- 555 680 257 400 800 2450 

24" X 22" 600 X 550 42,00 1067 42,50 1080 45,00 1143 ---- 635 806 150 410 800 2750 

24" 600 42,00 1067 42,50 1080 45,00 1143 ---- 700 870 150 410 800 3180 

28" X 24" 700 X 600 49,00 1245 - - 53,00 1346 ---- 700 870 150 410 800 3610 

28" 700 49,00 1245 - - 53,00 1346 ---- 780 955 83 650 800 4480 

For other Body/Trim material combination please refer to "How to Order ALFA Ball Valves" or consult your ALFA distributor or Factory 



BALL VALVES 


TM 

ALFA 




























Note : 

Nominal Size Design L (RF) L (RTJ) L (BE) W1 H1 

in mm Type in mm in mm in mm (mm) (mm) 

1 1/2" 40 7,50 191 8,00 203 7,50 191 230 70 135 ---- ---- ---- 15 

2" X 1 1/2" 50 X 40 8,50 216 9,12 232 8,50 216 230 70 135 ---- ---- ---- 18 



2" 50 8,50 216 9,12 232 8,50 216 230 80 150 ---- ---- ---- 33 

3" X 2" 80 X 50 11,12 282 11,74 298 11,12 282 230 80 150 ---- ---- ---- 36 

3" 80 11,12 282 11,74 298 11,12 282 400 100 200 ---- ---- ---- 41 

4"X 3" 100 X 80 12,00 305 12,62 321 12,00 305 400 100 200 ---- ---- ---- 53 

4" 100 12,00 305 12,62 321 12,00 305 650 115 240 ---- ---- ---- 81 

6" X 4" 150 X 100 15,88 403 16,50 419 18,00 457 650 115 240 ---- ---- ---- 105 

6" 150 15,88 403 16,50 419 18,00 457 ---- 260 340 85 180 450 155 

8" X 6" 200 X 150 19,75 502 20,37 517 20,50 521 ---- 260 340 85 180 450 285 

8" 200 19,75 502 20,37 517 20,50 521 ---- 300 389 116 350 600 360 

10" X 8" 250 X 200 22,38 568 23,00 584 22,00 559 ---- 300 389 116 350 600 390 

10" 250 22,38 568 23,00 584 22,00 559 ---- 325 405 116 350 600 585 

12" X 10" 300 X 250 25,50 648 26,12 663 25,00 635 ---- 325 405 116 350 600 720 

12" 300 25,50 648 26,12 663 25,00 635 ---- 365 455 171 420 800 890 

14" X 12" 350 X 300 30,00 762 30,62 778 30,00 762 ---- 365 455 171 420 800 905 


14" 350 30,00 762 30,62 778 30,00 762 ---- 400 490 171 420 800 1160 

16" X 12" 400 X 300 33,00 838 33,62 854 33,00 838 ---- 365 455 171 420 800 1280 

16" X 14" 400 X 350 33,00 838 33,62 854 33,00 838 ---- 400 490 171 420 800 1350 

16" 400 33,00 838 33,62 854 33,00 838 ---- 440 550 257 400 800 1560 

18" X 14" 450 X 350 36,00 914 36,62 930 36,00 914 ---- 400 490 171 420 800 1500 

18" X 16" 450 X 400 36,00 914 36,62 930 36,00 914 ---- 440 550 257 400 800 1730 

18" 450 36,00 914 36,62 930 36,00 914 ---- 500 620 257 400 800 2420 

20" X 16" 500 X 400 39,00 991 39,75 1010 39,00 991 ---- 440 550 257 400 800 2010 

20" X 18" 500 X 450 39,00 991 39,75 1010 39,00 991 ---- 500 620 257 400 800 2505 

20" 500 39,00 991 39,75 1010 39,00 991 ---- 555 680 257 400 800 2610 

22" X 18" 550 X 450 43,00 1092 43,88 1115 43,00 1092 ---- 500 620 257 400 800 2630 

22" X 20" 550 X 500 43,00 1092 43,88 1115 43,00 1092 ---- 555 680 257 400 800 2670 

22" 550 43,00 1092 43,88 1115 43,00 1092 ---- 635 806 150 410 800 2700 

24" X 20" 600 X 500 45,00 1143 45,88 1165 45,00 1143 ---- 555 680 257 400 800 2950 

24" X 22" 600 X 550 45,00 1143 45,88 1165 45,00 1143 ---- 635 806 150 410 800 3200 

24" 600 45,00 1143 45,88 1165 45,00 1143 ---- 700 870 150 410 800 5025 

28" X 24" 700 X 600 53,00 1346 54,00 1372 53,00 1346 ---- 700 870 150 410 800 4310 

28" 700 53,00 1346 54,00 1372 53,00 1346 ---- 780 955 83 650 800 5170 

Weight 

(Kg) 


H2 

(mm) 

E 

(mm) 

F 

(mm) 

F W 

(mm) 



BALL VALVES 


TM 

ALFA 




























Nominal Size Design L (RF) L (RTJ) L (BE) W1 H1 H2 E F F W Weight 

in mm Type in mm in mm in mm (mm) (mm) (mm) (mm) (mm) (mm) (Kg) 

1/2" 15 6,50 165 6,44 164 6,50 165 160 ---- 102 ---- ---- ---- 6 

3/4" 20 7,50 191 7,50 191 7,50 191 160 ---- 115 ---- ---- ---- 9 

1" 25 8,50 216 8,50 216 8,50 216 230 ---- 125 ---- ---- ---- 11 

1 1/2" 40 9,50 241 9,50 241 9,50 241 400 ---- 140 ---- ---- ---- 22 

2" X 1 1/2" 50 X 40 11,50 292 11,62 295 11,50 292 400 ---- 140 ---- ---- ---- 23 

2" 50 11,50 292 11,62 295 11,50 292 400 93 190 ---- ---- ---- 39 

3" X 2" 80 X 50 14,00 356 14,12 359 14,00 356 400 93 190 ---- ---- ---- 46 

3" 80 14,00 356 14,12 359 14,00 356 650 122 230 ---- ---- ---- 83 

4"X 3" 100 X 80 17,00 432 17,12 435 17,00 432 650 122 230 ---- ---- ---- 120 

4" 100 17,00 432 17,12 435 17,00 432 ---- 152 280 85 180 450 150 

6" X 4" 150 X 100 22,00 559 22,12 562 22,00 559 ---- 152 280 85 180 450 240 

6" 150 22,00 559 22,12 562 22,00 559 ---- 215 327 116 350 600 377 

8" X 6" 200 X 150 26,00 660 26,12 663 26,00 660 ---- 215 327 116 350 600 450 

8" 200 26,00 660 26,12 663 26,00 660 ---- 294 374 171 420 800 650 

10" X 8" 250 X 200 31,00 787 31,12 790 31,00 787 ---- 294 374 171 420 800 780 

10" 250 31,00 787 31,12 790 31,00 787 ---- 370 445 171 420 800 950 

12" X 10" 300 X 250 33,00 838 33,12 841 33,00 838 ---- 370 445 171 420 800 1100 

12" 300 33,00 838 33,12 841 33,00 838 ---- 420 515 257 400 800 1700 

14" X 12" 350 X 300 35,00 889 35,12 892 35,00 889 ---- 420 515 257 400 800 1850 

14" 350 35,00 889 35,12 892 35,00 889 ---- 460 550 257 400 800 2050 

16" X 12" 400 X 300 39,00 991 39,12 994 39,00 991 ---- 420 515 257 400 800 2150 

16" X 14" 400 X 350 39,00 991 39,12 994 39,00 991 ---- 460 550 257 400 800 2200 

16" 400 39,00 991 39,12 994 39,00 991 ---- 505 615 257 400 800 2325 

18" X 14" 450 X 350 43,00 1092 43,12 1095 43,00 1092 ---- 460 550 257 400 800 2310 

18" X 16" 450 X 400 43,00 1092 43,12 1095 43,00 1092 ---- 505 615 257 400 800 2600 

18" 450 43,00 1092 43,12 1095 43,00 1092 ---- 560 700 150 410 800 2920 

20" X 16" 500 X 400 47,00 1194 47,25 1200 47,00 1194 ---- 505 615 257 400 800 2850 

20" X 18" 500 X 450 47,00 1194 47,25 1200 47,00 1194 ---- 560 700 150 410 800 3120 

20" 500 47,00 1194 47,25 1200 47,00 1194 ---- 630 810 150 410 800 3400 

22" X 18" 550 X 450 51,00 1295 51,38 1305 51,00 1295 ---- 560 700 150 410 800 3450 

22" X 20" 550 X 500 51,00 1295 51,38 1305 51,00 1295 ---- 630 810 150 410 800 3600 

22" 550 51,00 1295 51,38 1305 51,00 1295 ---- 760 920 83 650 800 3930 

24" X 20" 600 X 500 55,00 1397 55,38 1407 55,00 1397 ---- 630 810 150 410 800 3680 

24" X 22" 600 X 550 55,00 1397 55,38 1407 55,00 1397 ---- 760 920 83 650 800 4100 

24" 600 55,00 1397 55,38 1407 55,00 1397 ---- 825 1010 83 650 800 4500 

28" X 24" 700 X 600 61,00 1549 61,50 1562 61,00 1549 ---- 825 1010 83 650 800 7280 

28" 700 61,00 1549 61,50 1562 61,00 1549 ---- 970 1180 123 800 800 8280 

Note : 




For other Body/Trim material combination please refer to "How to Order ALFA Ball Valves" or consult your ALFA distributor or 



BALL VALVES 


TM 

ALFA 




























Nominal Size 

Design 

L (RF) L (RTJ) L (BE) W1 H1 H2 

(mm) (mm) 

in mm Type in mm in mm in mm 

(mm) 

(mm) 

1/2" 15 8,50 216 8,50 216 8,50 216 175 ---- 117 ---- ---- ---- 

3/4" 20 9,00 229 9,00 229 9,00 229 280 ---- 140 ---- ---- ---- 

1" 25 10,00 254 10,00 254 10,00 254 280 ---- 150 ---- ---- ---- 

1-1/2" 40 12,00 305 12,00 305 12,00 305 400 119 210 ---- ---- ---- 

2" X 1-1/2" 50 X 40 14,50 368 14,62 371 14,50 368 400 119 210 ---- ---- ---- 

Trunnion, 3 

Pieces, Lever 

Operated 

2" 50 14,50 368 14,62 371 14,50 368 650 126 217 ---- ---- ---- 

3" X 2" 80 X 50 15,00 381 15,12 384 15,00 381 650 126 217 ---- ---- ---- 

3" 80 15,00 381 15,12 384 15,00 381 ---- 191 259 116 350 600 

4"X 3" 100 X 80 18,00 457 18,12 460 18,00 457 ---- 191 259 116 350 600 

4" 100 18,00 457 18,12 460 18,00 457 ---- 216 297 116 350 600 

6" X 4" 150 X 100 24,00 610 24,12 613 24,00 610 ---- 216 297 116 350 600 

6" 150 24,00 610 24,12 613 24,00 610 ---- 270 360 116 350 600 

8" X 6" 200 X 150 29,00 737 29,12 740 29,00 737 ---- 270 360 116 350 600 

8" 200 29,00 737 29,12 740 29,00 737 ---- 322 394 171 420 800 

10" X 8" 250 X 200 33,00 838 33,12 841 33,00 838 ---- 322 394 171 420 800 

10" 250 33,00 838 33,12 841 33,00 838 ---- 420 502 257 400 800 

12" X 10" 300 X 250 38,00 965 38,12 968 38,00 965 ---- 420 502 257 400 800 

12" 300 38,00 965 38,12 968 38,00 965 ---- 470 572 257 400 800 

14" X 12" 350 X 300 40,50 1029 40,88 1038 40,50 1029 ---- 470 572 257 400 800 

14" 350 40,50 1029 40,88 1038 40,50 1029 ---- 510 675 150 410 800 

16" X 12" 400 X 300 44,50 1130 44,88 1140 44,50 1130 ---- 470 572 257 400 800 

16" X 14" 400 X 350 44,50 1130 44,88 1140 44,50 1130 ---- 510 675 150 410 800 

16" 400 44,50 1130 44,88 1140 44,50 1130 ---- 600 762 150 410 800 

18" X 14" 450 X 350 48,00 1219 48,50 1232 48,00 1219 ---- 510 675 150 410 800 

18" X 16" 450 X 400 48,00 1219 48,50 1232 48,00 1219 ---- 600 762 150 410 800 

18" 450 48,00 1219 48,50 1232 48,00 1219 ---- 700 866 180 650 800 


20" X 16" 500 X 400 52,00 1321 52,50 1334 52,00 1321 ---- 600 762 150 410 800 

20" X 18" 500 X 450 52,00 1321 52,50 1334 52,00 1321 ---- 700 866 180 650 800 

20" 500 52,00 1321 52,50 1334 52,00 1321 ---- 720 894 180 650 800 

24" X 20" 600 X 500 61,00 1549 61,75 1568 61,00 1549 ---- 720 894 180 650 800 

24" X 22" 600 X 550 61,00 1549 61,75 1568 61,00 1549 ---- 765 925 220 735 800 

24" 600 61,00 1549 61,75 1568 61,00 1549 ---- 810 956 220 735 800 

E 

(mm) 

F 

(mm) 

F W 

Weight 

(Kg) 

Note : 




BALL VALVES 


TM 

ALFA 




























Nominal Size Design L (RF) L (RTJ) L (BE) W1 H1 

in mm Type in mm in mm in mm (mm) (mm) 

1/2" 15 8,50 216 8,50 216 8,50 216 175 ---- 117 ---- ---- ---- 

3/4" 20 9,00 229 9,00 229 9,00 229 280 ---- 140 ---- ---- ---- 

1" 25 10,00 254 10,00 254 10,00 254 280 ---- 150 ---- ---- ---- 

1-1/2" 40 12,00 305 12,00 305 12,00 305 400 119 210 ---- ---- ---- 

2" X 1-1/2" 50 X 40 14,50 368 14,62 371 14,50 368 400 119 210 ---- ---- ---- 

Trunnion, 3 

Pieces, Lever 

Operated 

2" 50 14,50 368 14,62 371 14,50 368 650 126 217 ---- ---- ---- 

3" X 2" 80 X 50 18,50 470 18,62 473 18,50 470 650 126 217 ---- ---- ---- 

3" 80 18,50 470 18,62 473 18,50 470 ---- 191 259 116 350 600 

4"X 3" 100 X 80 21,50 546 21,62 549 21,50 546 ---- 191 259 116 350 600 

4" 100 21,50 546 21,62 549 21,50 546 ---- 216 297 116 350 600 

6" X 4" 150 X 100 27,75 705 28,00 711 27,75 705 ---- 216 297 116 350 600 

6" 150 27,75 705 28,00 711 27,75 705 ---- 296 365 171 420 800 

8" X 6" 200 X 150 32,75 832 33,13 842 32,75 832 ---- 296 365 171 420 800 

8" 200 32,75 832 33,13 842 32,75 832 ---- 378 475 257 400 800 

10" X 8" 250 X 200 39,00 991 39,38 1000 39,00 991 ---- 378 475 257 400 800 

10" 250 39,00 991 39,38 1000 39,00 991 ---- 495 578 257 400 800 

12" X 10" 300 X 250 44,50 1130 45,12 1146 44,50 1130 ---- 495 578 257 400 800 

12" 300 44,50 1130 45,12 1146 44,50 1130 ---- 542 696 150 410 800 

14" X 12" 350 X 300 49,50 1257 50,25 1276 49,50 1257 ---- 542 696 150 410 800 

14" 350 49,50 1257 50,25 1276 49,50 1257 ---- 590 761 150 410 800 

16" X 12" 400 X 300 54,50 1384 55,38 1407 54,50 1384 ---- 542 696 150 410 800 

16" X 14" 400 X 350 54,50 1384 55,38 1407 54,50 1384 ---- 590 761 150 410 800 

16" 400 54,50 1384 55,38 1407 54,50 1384 ---- 670 831 180 650 800 

18" X 14" 450 X 350 60,50 1537 61,38 1559 60,50 1537 ---- 590 761 150 410 800 

18" X 16" 450 X 400 60,50 1537 61,38 1559 60,50 1537 ---- 670 831 180 650 800 


18" 450 60,50 1537 61,38 1559 60,50 1537 ---- 710 900 220 735 800 

20" X 16" 500 X 400 65,50 1664 66,38 1686 65,50 1664 ---- 670 831 180 650 800 

20" X 18" 500 X 450 65,50 1664 66,38 1686 65,50 1664 ---- 710 900 220 735 800 

20" 500 65,50 1664 66,38 1686 65,50 1664 ---- 750 950 220 735 800 

24" X 20" 600 X 500 80,43 2043 81,55 2071 80,43 2043 ---- 750 950 220 735 800 

24" X 22" 600 X 550 80,43 2043 81,55 2071 80,43 2043 ---- 800 1015 280 1010 800 

24" 600 80,43 2043 81,55 2071 80,43 2043 ---- 850 1080 280 1010 800 

H2 

(mm) 

E 

(mm) 

F 

(mm) 

F W 

(mm) 

Weight 

(Kg) 

Note : 

For other Body/Trim material combination please refer to "How to Order ALFA Ball Valves" or consult your ALFA distributor or 

Factory. 

9 PT. ALFA VALVES INDONESIA 2015 

21

Accessories 

TM 

ALFA 

LEVER 

The ALFA ball valve has its operation lever classified into 

three types by valve nominal diameter, with an operating 

torque taken into account. It is made of the metal which 

will neither be molten nor deformed even if over heated 

in a fire or the like. 

Shape B0011. B0012 B0111. B0112 

(material) Nominal Nominal 

Carbon Steel 

Ductile Iron 

Steel Pipe 

Ductile Iron 

diameter 

diameter 

15 ~ 50 mm ..... 

65 ~ 80 mm 80 ~ 100 mm 

100 ~ 200 mm 125 ~ 250 mm 

PAD LOCK SIZE 

To Lock the ALFA ball valve, employ the 

pad lock having a size as specified 

below. 

Table of Dimensions 

Valve Nominal 

Diameter 

Key Hole 

Pad Lock Size 

D L H 

Reverence 

(Nominal Pad lock 

diameter alpha 

number) 

15 mm 6 4.5 16 18 1000~25m/m 

20~25 mm 6 5 19 15 1000~30m/m 

40~50 mm 8 6 27 24 1000~40m/m 

65~100 mm 10 6 30 27 1000~45m/m 

125~200 mm 10 6 30 27 1000~45m/m 

H 

d 

L 

LOCK 

WORM GEAR OPERATING 

The gear operator, which is of completely enclosed 

type, may be employed in outdoor piping without any 

problem. A combination of worm with sector gear 

permits the control to be operated lightly. Valve in size 

250 mm full bore and 300 mm Reduced bore is supplied 

with worm gear operator as standard. The gear operator 

is optionally mountable onto full bore type 65 mm thru 

200 mm and reduced Bore Type 80 mm thru 250 mm. 

11 

10 

W 

T 

Table of Materials 

No Part Material 

1 Valve Body - 

2 Valve Stem - 

3 Grand Flange - 

4 York Ductile Iron 

5 Connector Carbon Steel 

6 Gear Housing Cast Iron 

7 Key Carbon Steel 

8 Cover Cast Iron 

9 Cover Bolt Carbon Steel 

10 Hand Wheel STEEL 

11 Adjustment Screw Carbon Steel 

12 O-ring NBR 

13 Worm Wheel Ductile Iron 

14 Worm Carbon Steel 

15 Shaft Carbon Steel 

16 O-ring NBR 

14 

15 

16 

9 

8 

7 

13 

6 

12 

5 

4 

3 

2 

1 

J 

Nominal Diameter of Applicable Valve Type of Enclosed 

Dimensions 

Full Bore Type Reduced Bore Type Gear Operator 

T J W 

65-80-100 80-100-125 HG-00 180 55 300 

125-150 150-200 HD-0 240 85 450 

200-250 250-300 HG-1 350 116 600 


Moment Torque 

TM 

ALFA 


BALL VALVES 

Moment / Break Away Torque Data 

Ball Valve Size 

3 Pcs Forged 

Full 

Bore 

Reduced 

Bore 

150 lb 

(2.0 MPa) 

Break 

Torque 

Under 

Full 

Pressure 

(N.m) 

Stem 

Allowed 

Torque 

(N.m) 

300 lb 

(5.0 MPa) 

Break 

Torque 

Under 

Full 

Pressure 

(N.m) 

Pressure Rating (ANSI Class) 

Stem 

Allowed 

Torque 

(N.m) 

400 lb 

(6.4 MPa) 

Break 

Torque 

Under 

Full 

Pressure 

(N.m) 

Stem 

Allowed 

Torque 

(N.m) 

600 lb 

(10.0 MPa) 

Break 

Torque 

Under 

Full 

Pressure 

(N.m) 

Stem 

Allowed 

Torque 

(N.m) 

900 lb 

(16.0 MPa) 

Break 

Torque 

Under 

Full 

Pressure 

(N.m) 

Stem 

Allowed 

Torque 

(N.m) 

1" ---- 40 130 44 130 90 270 

1-1/2" 2" X 11/2" 30 180 60 180 50 225 75 225 120 360 

2" 3" X 2" 42 225 75 225 97 345 115 345 240 720 

2-1/2" ---- 100 450 150 450 160 660 220 660 380 1140 

3" 4" X 3" 140 630 210 630 200 840 280 840 480 1440 

4" 6" X 4" 220 1080 360 1080 360 1380 460 1380 800 2400 

6" 8" X 6" 320 2040 480 1440 640 2850 950 2850 1600 4800 

8" 10" X 8" 640 2550 850 2550 1200 4800 1600 4800 2800 8400 

10" 12" X 10" 1200 4350 1450 4350 2000 8100 2700 8100 4800 14400 

12" 14" X 12" 1800 6900 2300 6900 3200 12900 4300 12900 7200 21600 

14" 16" X 14" 2600 9900 3300 9900 4500 18600 6200 18600 11000 33000 

16" 18" X 16" 3800 14400 4800 14400 6400 26400 8800 26400 14400 43200 

18" 20" X 18" 4800 19200 6400 19200 8800 36000 12000 36000 19200 57600 

20" 24"X 20" 6400 24000 8000 24000 11000 42000 14000 42000 27200 81600 

22" 24" X 22" 8000 28200 9400 28200 14000 60000 20000 60000 32000 96000 

24" 28" X 24" 10000 36000 12000 36000 16000 66000 22000 66000 40000 120000 

28" ---- 14000 52500 17500 52500 23000 90000 30000 90000 48000 144000 

Note : 

# 

Break away torque is the maximum torque for valves which have not been operated for more than 48 hours and is an instantaneous value. As soon 

as the ball moves, the torque will drop by one third of this value. 

# For actuator sizing purpose a safety factor of 1.5 must be added. Example : If break away torque is 30 N.m , the output torque from actuator shall be 

30 X 1.5 = 45 N.m. 



BALL VALVES 

Top Side Dimensions (Top Work) 

Dimension 

TM 

ALFA 

ANSI CLASS 150 & ANSI CLASS 300 

Nominal Size 

Reduced 

Full 

Ф A 

(mm) 

Ф B 

(mm) 

H 

(mm) 

T 

(mm) 

T1 

(mm) 

L 

(mm) 

J 

(mm) 

3" X 2" 2" 20 55 38 16 2 22 ---- 12 ---- ---- 70 92 70 122 84 4-M8 

4" X 3" 3" 27 55 48 20 2 33 ---- 17 ---- ---- 70 92 70 173 125 4-M8 

6" X 4" 4" 34 70 48 23 2 33 ---- 22 ---- ---- 102 125 95 199 151 4-M10 

8" X 6" 6" 44 106 84 28 2 38 ---- 27 70 110 ---- 115 ---- 297 213 4-M16 

10" X 8" 8" 51 145 112 25 2 53 ---- 32 90 140 ---- 140 ---- 383 271 4-M20 

12" X 10" 10" 50 145 67 24 2 60 5.5 14 90 140 ---- ---- ---- 428 361 4-Ф23 

14" X 12" 12" 64 170 83 27 3 75 6.0 18 ---- ---- 220 260 200 484 401 6-Ф23 

16" X 14" 14" 64 170 83 27 3 75 6.0 18 ---- ---- 220 260 200 519 436 6-Ф23 

18" X 16" 16" 75 200 107 27 3 100 7.0 20 ---- ---- 260 320 250 574 467 6-Ф27 

20" X 18" 18" 75 200 112 27 3 100 7.0 20 ---- ---- 260 320 250 654 542 6-Ф27 

24"X 20" 20" 85 200 108 37 3 100 8.0 24 ---- ---- 260 320 250 706 598 6-Ф27 

28" X 24" 24" 100 240 138 44 3 130 9.0 28 ---- ---- 300 350 ---- 845 707 8-Ф27 

32" X 28" 28" 120 280 190 60 3 180 10.0 32 ---- ---- 350 400 ---- 945 755 12-Ф27 

K 

(mm) 

V 

(mm) 

W 

(mm) 

Ф E 

(mm) 

Ф F 

(mm) 

G (mm) 

H1 

(mm) 

H2 

(mm) 

N 



BALL VALVES 

Top Side Dimensions 

Dimension 

TM 

ALFA 


Nominal Size 

Reduced 

Full 

Ф A 

(mm) 

Ф B 

(mm) 

H 

(mm) 

T 

(mm) 

T1 

(mm) 

L 

(mm) 

J 

(mm) 

3" X 2" 2" 27 55 50 ---- 2 33 ---- 17 ---- ---- 70 104 104 182 134 4-M8 

4" X 3" 3" 34 70 48 ---- 2 34 ---- 22 ---- ---- 102 125 105 206 158 4-M10 

6" X 4" 4" 44 106 85.5 20 2 38 ---- 27 70 110 ---- ---- ---- 235 190 4-Ф19 

8" X 6" 6" 50 145 65 24 3 60 4.5 12 90 140 ---- ---- ---- 329 262 4-Ф23 

10" X 8" 8" 64 170 85 27 3 75 6.0 18 ---- ---- 220 260 200 390 315 6-Ф23 

12" X 10" 10" 64 170 85 27 3 75 6.0 18 ---- ---- 220 260 200 465 382 6-Ф23 

14" X 12" 12" 75 200 108 27 3 100 7.0 20 ---- ---- 260 320 250 540 432 6-Ф27 

16" X 14" 14" 75 200 108 27 3 100 7.0 20 ---- ---- 260 320 250 590 482 6-Ф27 

18" X 16" 16" 85 200 108 37 3 100 8.0 24 ---- ---- 260 320 250 640 532 6-Ф27 

20" X 18" 18" 100 240 138 44 3 130 9.0 28 ---- ---- 300 350 ---- 735 597 8-Ф27 

24"X 20" 20" 100 240 138 44 3 130 9.0 28 ---- ---- 300 350 ---- 795 657 8-Ф27 

28" X 24" 24" 120 280 190 60 3 180 10.0 32 ---- ---- 350 400 ---- 991 801 12-Ф27 

32" X 28" 28" 140 360 190 60 3 180 11.0 35 ---- ---- 450 500 ---- 1090 900 12-Ф30 

K 

(mm) 

V 

(mm) 

W 

(mm) 

Ф E 

(mm) 

Ф F 

(mm) 

G (mm) 

H1 

(mm) 

H2 

(mm) 

N 



SIZE 

FIG. No. 

08" 

A 

B 

06 F 2 T 


- GO - 

F 

Valve 

Body 

Connec - 

Pressure Bore 

Design 


Configu - 

tion 

Rating Type 

Type 

- 

cation 

ration 

Type 

Body 

Material 

- 

Trim 

Material 

Seat 

Material 

Design 

- Opera- 

- 

tor 

Modification 



VALVE SIZE 

BRAND 

VALVE 



0Q 1/4" 


0H 1/2" 


0T 3/4" 


01 1" 


1H 1 1/2" 


02 2" 



2H 2 1/2" 


03 3" 

04 4" J1 

JIS 10K 

- 

- J2 

JIS 20K 

36 36" 

J4 

JIS 40K 

J6 

JIS 63K 

F 

R 

S 

BORE TYPE 

FULL PORT 

REDUCED 

PORT 

SPECIAL 

PORT 

WCB 

C5 

WC6 

WC9 

C12 

LCB 

LCC 

LC3 

CF8 

CF8M 

CF3 

CF3M 

CF8C 

CN7M 

Mo 

CD3 

CD3MW 

INC 

TIN 


1 WELDED BODY 




















NICKEL ALLOY 

TITANIUM 

BODY MATERIAL 

L 

T 

DESIGN TYPE 

FLOATING TYPE 

TRUNNION TYPE 

TRIM MATERIAL 

F1 


F6 


CODE BALL 

F6N 


SF 

304 SS 

F9 


SS 

316 SS 

F11 


ST 

317 SS 

F22 



A10 

ASTM A105 


LF2 



304 





316 




AT 

Alloy 20 

317 


ML 

Monel 


IL 

Inconnel 

F321 


TT Titanium 

F347 




SE 

Stellited 

F57 


EN 

ENP 

SP 



P 

F 

R 

B 

S 

T 

C 

A 


FLAT FACE 

RAISED FACE 

RING JOINT 

BUTT WELD 

SOCKET WELD 

SCREWED 

COMBINATION 

SPECIAL 

STEM 

304 SS 

316 SS 

317 SS 

316 SS 

304 SS 

410 SS 

316 SS 

304 SS 

410 SS 

Alloy 20 

Monel 

Inconnel 

Titanium 

Hastelloy C 

Stellited 

ENP 


S E A T 



F 

PTF E 


N 

N 

N ylo n 


V 

Vito n 

B 

Buna -N 

E 

EPDM 

H 

UH M W PE 


P 

PEEK 

S 


H W 

Ha nd W he el 

SX 


L O 

G O 

H O 




N 

B 

S 






M O 


F 


CW 


14 


ALFATM 


PLUG VALVE 


CONTENTS 

Plug Valves 

TM 

ALFA 

ALFA PLUG VALVE TYPE 

SELF-LUBRICATED PLUG VALVE 

l 

l 

l 

l 

PART & MATERIALS LIST 

CLASS 150 

CLASS 300 

CLASS 600 

PLUG VALVE WITH BOTTOM-ENTRY 

l 

l 

l 

l 

l 

l 

PART & MATERIALS LIST 

CLASS 150 

CLASS 300 

CLASS 600 

CLASS 900 

CLASS 1500 

API 6A PLUG VALVE 

l 

CLASS 2000, 3000, 5000 

PLUG VALVE WITH SINGLE FLUSH 

l 

CLASS 150, 300 

PLUG VALVE WITH DOUBLE FLUSH 

l 

CLASS 150, 300 

HOW TO ORDER ALFA PLUG VALVES 


PLUG VALVE TYPES 

Types 

TM 

ALFA 

THREADED PLUG VALVE (N/A) 

PLUG VALVE WITH DOUBLE FLUSH (N/A) 

PLUG VALVE WITH SINGLE FLUSH (N/A) 

BUTT WELDED PLUG VALVE 

ELECTRIC PLUG VALVE 


PLUG VALVE TYPES 

Types 

TM 

ALFA 

FLOW INDICATION FOR 3-WAY VALVES 

ALFA three-way valve body runs are market with 

letter designations *A. **B, and *C*, A position 

indicator plate (marked with flow designations A-B, 

B-C, A-C, A-B-C, Or CLOSED) mounted on the topcap. 

The stop collar pointer indicates the plug is 

market with a groove to further indicate the port 

positions. Should the stop collar be removed, care 

should be taken to assure proper orientation upon 

reassembly. 

The valve wrench is designed to operate in any of 

four quadrants. 

Arrangement 

1 

Arrangement 

3&7 

Arrangement 

5&8 

Arrangement 

13 

3 - WAY VALVES 

Choose ALFA Multi port process valves for mixing, 

safety and relief, switching by, and flow services. 

Availably in fully or partially jacketed models. 

SLEEVE LINED CONTROL VALVES 

ALFA V-Port alloy control valves are available in 1" 

(25,4 mm) through 6" (152,4 mm) sizes with full 

open Cv valves of 3,8 through 400 in a wide range 

of materials to satisfy your flow control needs. 

Special trimmed control valves reduce noise, 

cavitations and flashing while improving flow and 

pressure performance. Unique, self-cleaning 

design prevents clogging. 

HEAVY-DUTY VALVES AVAILABLE 

For applications requiring a higher flow capacity 

valve. Alfa offers a larger valve in "8", "10" and "12" 

sizes. Contact the marketing department Valves 

for dimensional specifications. 


ALFA PLUG VALVE TYPES 

Types 

TM 

ALFA 



ALFA plug valves are available in three different patterns to provide the efficiency, economy, and flexibility to satisfy 

needs of most piping system. 

SHORT PATTERN REGULAR PATTERN VENTURY PATTERN 

P r o v i d e s f a c e t o f a c e 

dimension that match gate 

valves. 

Offers the largest port opening in a 

trapezoidal configuration-close to a 

full pipe size. 

Has a smaller port than the other 

two patterns, is lower in cost, flow 

contours maximize hydraulic 

efficiency. 

ALFA 

ALFA 

ALFA 

ALFA plug valves are available with threaded. Flanged , butt weld or flanged x butt weld ends. Flanges are provided 

with either raised face of ring joint facings. 

ALFA 

ALFA ALFA ALFA 

THREADED FLANGED WELDING ENDS COMBINATION 



Class 150, 300, Types 600 

TM 

ALFA 



Part & Materials List 

TM 

ALFA 

STEM 

STEM SLEEVE 

COVER 

STUD 

PLUG 

High precision surface finish Permits 

the bushing covered sealings wholly & 

reliable tightness. 

High precision surface finish Permit 

the bushing covered sealings wholly & 

reliable tightness. 

Name 

Body 

Material 

A216 Gr WCB A352 LCB, A351 CF8 (A182F304) A351 CF8M (A182 F304L) A351 CF3 (A182 F316) A351 CF3M (A182 F316L) 

Cover A216 Gr WCB, A352 LCB, A351 CF8 (A182F304) A351 CF8M (A182 F304L) A351 CF3 (A182 F316) A351 CF3M (A182 F316L) 

Stem A182 F6 A182 F304 A182 F304L A182 F316 A182 F316L 

Plug 

A216 Gr WCB PLATED, A352 LCB PLATED, A351 CF8, A351 CF8M, A351 CF3, A352 CF3M 

Diagram Gasket PTFE 

Bushing 

Bolt 

Nut 

PTFE 

A193 B7, B8M, B8, A307 B 

A194 2H, B8, 8, A307 B 

* 1. The valve can be tailor made as customer's material requirement. 

2. To meet with customer requirement corrosion resisting and sulphure-resisting, 

the compaby will use those Hardness < 22HRC as nain parts, which is refer to NACE-MR-0175. 



Class 150 & Types 300 

TM 

ALFA 

D 

H 

H 

ALFA 

WCB 

D 

ALFA 

L 

L 

THREADED 

RF 

RTJ 

WELDED 

SOCKET WELDED 

AP01TN-LO 

AP01FN-LO 

AP01RN-LO 

AP01BN-LO 

AP01SN-LO 

CLASS 150Lb 

THREADED 

RTJ 

WELDED 

AP01TN-GO 

AP01RN-GO 

AP01BN-GO 

THREADED 

RF 

RTJ 

WELDED 

AP03TN-LO 

AP03FN-LO 

AP03RN-LO 

AP03BN-LO 

CLASS 300Lb 

THREADED 

RF 

RTJ 

WELDED 

AP03TN-GO 

AP03FN-GO 

AP03RN-GO 

AP03BN-GO 

CLASS 150Lb 

NO. 1/2 3/4 1 1 1/2 2 2 1/2 3 4 6 

THREADED AP01TN-LO L 115 115 119 150 165 195 254 292 - 

(RF) AP01FN-LO L 108 117 127 165 178 191 203 229 268 

(RTJ) AP01RN-LO L 108 117 140 178 191 204 216 242 281 

WELDED AP01BN-LO L 140 149 172 241 267 305 330 356 457 

SOCKET WELDED AP01SN-LO L 345 339 339 364 - - - - - 

CENTRE TO TOP H 89 89 114 112 228 251 276 276 318 

FLANGE OUTSIDE DIMENSION D 92 102 108 127 152 178 190 229 279 

CLASS 150Lb 

NO. 8 10 12 14 16 

(RF) AP01FN-GO L 292 330 356 381 406 

(RTJ) AP01RN-GO L 305 343 369 394 419 

WELDED AP01BN-GO L 521 559 635 762 838 

CENTRE TO TOP H 381 444 584 622 622 

FLANGE OUTSIDE DIMENSION D 343 406 483 533 597 

CLASS 300Lb 

NO. 1/2 3/4 1 1 1/2 2 2 1/2 3 4 6 


(RF) AP03FN-LO L 140 152 165 191 216 241 283 305 403 

(RTJ) AP03RN-LO L 151 165 178 204 232 257 299 321 419 


CENTRE TO TOP H 69 89 114 112 228 251 276 276 318 


CLASS 300Lb 

NO. 8 10 12 14 16 18 

(RF) AP03FN-GO L 419 457 502 762 838 914 

(RTJ) AP03RN-GO L 435 473 518 778 854 930 

WELDED AP03BN-GO L 521 559 635 762 838 914 

CENTRE TO TOP H 381 444 584 662 622 670 

FLANGE OUTSIDE DIMENSION D 381 445 521 584 648 711 



Class Types 600 

TM 

ALFA 

H 

D 

3 

600 

ALFA 

WCB 

H 

D 

L 

THREADED 

RF 

RTJ 

WELDED 

AP06TN-LO 

AP06FN-LO 

AP06RN-LO 

AP06BN-LO 

L 

CLASS 600Lb 

NO. 1/2 3/4 1 1 1/2 2 2 1/2 3 4 

THREADED AP06TN-LO L 116 116 149 175 190 210 284 326 

(RF) AP06FN-LO L 165 190 216 241 292 330 259 432 

(RTJ) AP06RN-LO L 163 190 216 241 395 333 359 435 

WELDED AP06BN-LO L 165 191 216 241 292 330 359 432 

CENTRE TO TOP H 159 159 174 194 228 251 276 276 

FLANGE OUTSIDE DIMENSION D 95 118 124 156 165 190 210 273 



Class 150,300, Types 

600,900,1500 

TM 

ALFA 

SEALANT FITTING 

WRENCH 

GLAND FLANGE 

BODY 

CHECK VALVE 

STEM 

PLUG 

COVER 

BOLT 

ADJUSTMENT 

SCREW COVER 

ADJUSTMENT SCREW 

NUT 



Class 150 & 300 

TM 

ALFA 

H 

D 

H 

3 

150 

ALFA 

D 

ALFA 

WCB 

L 

THREADED 

RF 

RTJ 

WELDED 

SOCKET WELDED 

THREADED 

RF 

RTJ 

WELDED 

AP01TL-LO 

AP01FL-LO 

AP01RL-LO 

AP01BL-LO 

AP01SL-LO 

AP03TN-LO 

AP03FN-LO 

AP03RN-LO 

AP03BN-LO 

CLASS 150Lb 

CLASS 300Lb 

L 

RF 

RTJ 

WELDED 

SOCKET WELDED 

RF 

RTJ 

WELDED 

AP01FL-GO 

AP01RL-GO 

AP01BL-GO 

AP01SL-GO 

AP03FN-GO 

AP03RN-GO 

AP03BN-GO 

CLASS 150Lb 

NO. 1/2 3/4 1 1 1/2 2 2 1/2 3 4 6 


(RF) AP01FN-LO L 108 117 140 165 178 191 203 229 394 

(RTJ) AP01RN-LO L - - 140 178 191 203 216 241 406 


SOCKET WELDED AP01SN-LO L 345 339 339 364 - - - - - 

CENTRE TO TOP H 120 121 123 144 171 196 224 262 342 


CLASS 150Lb 

NO. 8 10 12 14 16 18 20 24 

(RF) AP01FN-GO L 475 533 610 686 762 864 914 1067 

(RTJ) AP01RN-GO L 470 546 622 699 775 876 927 1080 

WELDED AP01BN-GO L 521 559 635 762 838 914 991 1143 

CENTRE TO TOP H 416 492 604 616 676 960 855 884 


CLASS 300Lb 

NO. 1/2 3/4 1 1 1/2 2 2 1/2 3 4 6 


(RF) AP03FN-LO L 130 150 159 191 216 241 283 305 403 

(RTJ) AP03RN-LO L 143 163 173 204 229 254 296 318 419 


CENTRE TO TOP H 120 121 123 144 171 196 224 262 342 


CLASS 300Lb 

NO. 8 10 12 14 16 18 20 24 

(RF) AP03FN-GO L 502 568 711 762 838 914 991 1143 

(RTJ) AP03RN-GO L 518 584 727 778 854 930 1010 1165 


CENTRE TO TOP H 416 492 604 616 676 960 855 979 




Parts & Materials List 

TM 

ALFA 

Name 

Body 

Material 

A216 Gr WCB A352 LCB, A351 CF8 (A182 F304) A351 CF8M (A182 F304L) A351 CF3 (A182 F316) A351 CF3M (A182 F316L) 

Cover A216 Gr WCB. A352 LCB. A351 CF8 (A182 F304). A351 CF8M (A182 F304L). A351 CF3 (A182 F316). A351 CF3M (A182 F316L) 

Stem A182 F6, A182 F304, A182 F304L, A182 F316, A182 F316L 

Plug 

Packing 

Bolt 

Nut 

A216 Gr WCB PLATED, A352 LCB PLATED, A351 CF8, A351 CF8M, A351 CF3, A352 CF3M 

PTFE, GRAPHITE 

A193 B7, B8M, B8, A307 B 

A194 2H, B8, 8, A307 B 

* 1. The valve can be tailor made as customer's material requirement. 

2. To meet with customer requirement corrosion resisting and sulphure-resisting, 

the compaby will use those Hardness < 22HRC as nain parts, which is refer to NACE-MR-0175. 



Class 600 & 900 

TM 

ALFA 

H 

D 

H 

ALFA 

D 

ALFA 

WCB 

L 

L 

THREADED 

RF 

RTJ 

WELDED 

AP06TN-LO 

AP06FN-LO 

AP06RN-LO 

AP06BN-LO 

CLASS 600Lb 

RF 

RTJ 

WELDED 

AP06FN-GO 

AP06RN-GO 

AP06BN-GO 

RF 

RTJ 

WELDED 

AP09FN-LO 

AP09RN-LO 

AP09BN-LO 

CLASS 900Lb 

RF 

RTJ 

WELDED 

AP09FN-GO 

AP09RN-GO 

AP09BN-GO 

CLASS 600Lb 

NO. 1/2 3/4 1 1 1/2 2 2 1/2 3 4 

THREADED AP06TN-LO L 116 116 146 175 190 210 284 326 

(RF) AP06FN-LO L 165 191 216 241 292 330 356 432 

(RTJ) AP06RN-LO L 165 191 216 241 295 333 359 435 

WELDED AP06BN-LO L 165 191 216 241 292 330 356 432 

CENTRE TO TOP H 120 121 124 145 172 198 225 265 


CLASS 600Lb 

NO. 6 8 10 12 14 16 18 20 

(RF) AP06FN-GO L 559 660 787 838 889 991 1092 1194 

(RTJ) AP06RN-GO L 562 664 791 841 892 994 1095 1200 


CENTRE TO TOP H 364 461 545 604 656 709 804 949 


CLASS 900Lb 

NO 

2 

2 1/2 

3 

4 

(RF) AP09FN-LO L 

368 

419 

381 

457 

(RTJ) AP09RN-LO L 

371 

422 

384 

460 

WELDED AP09BN-LO L 

368 

419 

381 

457 

CENTRE TO TOP 

H 

177 

229 

245 

275 

FLANGE OUTSIDE DIMENSION 

D 

216 

244 

241 

292 

CLASS 900Lb 

NO. 6 8 10 12 14 16 18 20 

(RF) AP09FN-GO L 610 737 838 965 1029 1130 1219 1321 

(RTJ) AP09RN-GO L 613 740 841 968 1038 1140 1232 1334 


CENTRE TO TOP H 302 350 435 504 510 584 597 683 



ALFA PLUG VALVE TYPES 

Class 1500 

TM 

ALFA 

H 

H 

D 

3 

1500 

ALFA 

WCB 

D 

ALFA 

L 

L 

RF 

RTJ 

WELDED 

AP15FN-LO 

AP15RN-LO 

AP15BN-LO 

RF 

RTJ 

WELDED 

AP15FN-GO 

AP15RN-GO 

AP15BN-GO 

NO 

(RF) 

(RTJ) 

WELDED 

CENTRE TO TOP 


AP15FN-LO 

AP15RN-LO 

AP15BN-LO 

CLASS 1500Lb 

L 

L 

2 

368 

371 

2 1/2 

419 

422 

3 

470 

473 

L 

H 

368 

145 

419 

229 

470 

202 

D 216 244 267 

CLASS 1500Lb 

NO. 4 6 8 10 12 14 16 

(RF) AP15FN-GO L 546 705 832 991 1130 1257 1384 

(RTJ) AP15RN-GO L 546 711 841 1000 1146 1276 1407 

WELDED AP15BN-GO L 546 705 832 991 1130 1257 1384 

CENTRE TO TOP H 225 311 395 477 521 527 571 

FLANGE OUTSIDE DIMENSION D 311 394 483 585 675 750 825 


API 6A PLUG VALVE 

Class 2000,3000,5000 Types 

TM 

ALFA 

1/8 

3 

2000 

ALFA 

H 

D 

WCB 

L 

RTJ 

RTJ 

RTJ 

AP20RN-LO 

AP30RN-LO 

AP50RN-LO 

NO 


CENTRE TO TOP 

H 


D 


CENTRE TO TOP 

H 


D 

CLASS 2000PSI 

2 1/16 2 9/16 3 1/8 4 1/16 

295 333 359 435 

152 163 174 187 

165 190.5 210 273 

CLASS 3000PSI 

371 422 384 460 

152 174 201 220 

216 244 241 292 

CLASS 5000PSI 


371 - 473 549 

CENTRE TO TOP 

H 

152 - 201 217 

FLANGE OUTSIDE DIMENSION D 216 - 267 311 


PLUG VALVE WITH SINGLE FLUSH 

Class 150,300 Types 

TM 

ALFA 

TYPE 

CLASS 150Lb 

CLASS 300 Lb 

INCH A B A B 

2" 216 278 54.8 216 278 54.8 

3" 305 278 82.8 305 278 82.8 

4" 356 293 108.2 356 293 108.2 

6" 432 308 161.5 432 308 161.5 

8" 508 320 211.6 508 320 208 

10" 572 333 264.7 572 333 260.4 

PLUG VALVE WITH DOUBLE FLUSH 

TYPE 

CLASS 150Lb 

CLASS 300 Lb 

INCH A B C A B C 

2" 432 115 278 54.8 432 115 278 54.8 

3" 585 140 293 82.8 585 140 293 82.8 

4" 686 150 308 108.2 686 150 308 108.2 

6" 842 200 320 161.5 842 200 320 161.5 

8" 970 270 270 211.6 970 270 270 211.6 

10" 1144 350 350 264.7 1144 350 350 264.7 


TM 

ALFA 

HOW TO ORDER ALFA PLUG VALVES 

SIZE 

FIG. No. 

08" 

A P 06 F N 411 - WCB - LO - 1 S 2 L 

Valve Size 

Brand 

Valve 

Identi - 

fication 

Pressure 

Rating 

Modification 

Connection 

Type 

Sealing 

Type 

Trim 

Body Design 

- - - 

Material Operator 

Design 

Type 

Pattern 

Type 

Port 

Arrage - 

ment 

DESCRIPTION : 8 In ALFA PLUG VALVE, ANSI CLASS 600, RAISED FACE, NON-LUBRICATED TYPE, PLUG MATERIAL A351 CF8M, STEM 

MATERIAL 13 % Cr SS, BUSHING MATERIAL PTFE, BODY MATERIAL A216 Gr.WCB, LEVER OPERATOR, TOP ENTRY, SHORT PATTERN, 2 WAY, 

LOCKING DEVICE 

0Q 

0H 

0T 

01 

1H 

02 

2H 

03 

04 

~ 

24 

VALVE SIZE 

1/4" 

1/2" 

3/4" 

1" 

1-1/2" 

2" 

2-1/2" 

3" 

4" 

~ 

24" 

BRAND 

ALFA 

VALVE 


P : PLUG 



03 

06 






20 

30 

50 

2000 psi 

3000 psi 

5000 psi 

P 

F 

R 

B 

S 

T 

C 

A 


FLAT FACE 

RAISED FACE 

RING JOINT 

BUTT WELD 

SOCKET WELD 

SCREWED 

COMBINATION 

SPECIAL 

SEALING TYPE 

PLUG 

TRIM 

STEM 

BUSHING 

BODY MATERIAL 

N 

L 

Non- 

Lubricated 

Lubricated 

1 

2 

3 

4 

5 

6 

A216 Gr. WCB 

PLATED 

A352 Gr. LCB 

PLATED 

A351 Gr. CF8 

A351 Gr. CF8M 

A351 Gr. CF3 

A351 Gr. CF3M 

1 

2 

3 

4 

5 

6 

A182 Gr. F6a or 

A276 Tp. 410 

A182 Gr.F304 or 

A276 Tp.304 

A182 Gr.F304L or 

A276 Tp.304L 

A182 Gr.F316 or 

A276 Tp.316 

A182 Gr.F316L or 

A276 Tp.316L 

17-4PH ; ASTM 

A564 Gr.630 

1 

2 

3 

4 

PTFE 

NYLON 

UHMWPE 

PEEK 

NA 

WCB 

C5 

WC6 

WC9 

C12 

LCB 

LCC 

LC3 

CF8 

CF8M 

CF3 

CF3M 

CF8C 

CN7M 

Mo 

CD3 

CD3MW 

INC 


















NICKEL ALLOY 

F1 

F6 

F6N 

F9 

F11 

F22 

A10 

LF2 

304 

304L 

316 

316L 

317 

317L 

F321 

F347 

F51 

F57 







ASTM A105 










ASTM A182 Gr. F51(Duplex) 


7 SPECIAL 

7 

SPECIAL 

DESIGN OPERATOR 

DESIGN TYPE 

PATTERN TYPE PLUG PORT TYPE MODIFICATION 

LO 

HW 

Lever / Wrench 

Hand Wheel 

1 

Top Entry 

S 

Short Pattern 

2 

2 WAY 

D 

L 

Drain 

Locking Device 

GO 

HO 

PO 

MO 

Gear Operated 




2 

Bottom Entry 

R 

V 

Regular Pattern 

Venturi Pattern 

2V 

3 

2 WAY V-PORT 

3 WAY 

P 

NC 

SL 

DF 

Position Indicator 

NACE Standard 

Single Flush 

Double Flush 


ALFATM 

BASKET & Y STRAINER 


CONTENT 

ALFA Y-Strainer Valves 

TM 

ALFA 


Y-STRAINER VALVE 

l 

ANSI CLASS 150, 300 

Punching Sreen 

l PERCENTAGE OPEN AREA , OUTSIDE SCREEN (protecting net) 

ENGINEERING DATA SCREEN OPENINGS FOR Y-STRAINER 

l 

l 

l 

l 

l 

l 

l 

l 

Y-STRAINER PRESSURE DROP - LIQUIDS 

SCREEN CORRECTION FACTOR CHART 

Y-STRAINER PRESSURE DROP - SATURATED STEAM (Sized 1/4 - 1 ½ ) 

Y-STRAINER PRESSURE DROP - SATURATED STEAM (Sized 2 to 16 ) 

CORRECTION FACTORS FOR SCREENS 

CORRECTION FACTORS FOR CLOGGED SCREENS 

Y-STRAINER SCREEN BURST PRESSURE 

Y-STRAINER EFFECTIVE SCREEN AREA 

INSTALLATION AND MAINTENENCE INSTRUCTIONS FOR ALFA VALVE Y- 

STRAINER 

2 




TM 

ALFA 

L 

d 

D 

1 

2 

H 

3 

4 

5 

6 

7 

Material & Parts 

No Parts Name 

1 

Body 

2 

Screen 

3 

Gasket 

4 

Bonnet 

5 

Plug 

6 

Stud Bolt 

7 

Nut 

Material 



Soft Iron 

ASTM A216 WCB 

ASTM A105 

ASTM A193 GR B7 

ASTM A194 GR 2H 

Specification 

Body Material 

: Carbon Steel (ASTM A216 Gr. WCB, ASTM A352 Gr. LCB ; LCC) 

Alloy Steel (ASTM A217 Gr. WC5 ; WC6 ; WC9 ; WC9) 

Stainless Steel (ASTM A351 Gr. CF3 ; CF8 ; CF3M ; CF8M ; CF8C) 

Face-to-Face Dimension : ASME B16.10 

End Flange Dimension : ASME B16.5 for NPS 2”-24”, ASME B16.47 Series A or MSS-SP44 

For NPS 26” and Larger 

Pressure Test 

: API Standard 598 (Shell Test) 

Design : ASME B.16.34 

3 


ALFA Y- Strainer Valves 

L 


TM 

ALFA 

d 

D 

H 

AY01F-WCB 



Face-to-Face Dimensions : 

ASME B16.10 

End Flange Dimensions : 

2 in - 12 in ASME B16.5 

Design : 

ASME B.16.34 


ALFA Y-STRAINER Class 150, Raised Face Flange End, A216 Gr.WCB Body 

Dimensions and Weights Class 150 

Nominal Size 

Face-to-Face Flanged OD 

Height Weight 

L D H 

Wt 

in mm in mm in mm in mm Kgs 

2 50 8,0 203 6,0 152,4 5,7 145 12 

2 1/2 65 8,5 216 7,0 177,8 7,2 183 18 

3 80 9,5 241 7,5 190,5 8,1 206 21 

4 100 11,5 292 9,0 228,6 9,0 228 32 

6 150 16,0 406 11,0 279,4 13,0 329 48 

8 200 19,5 495 13,5 342,9 17,3 440 105 

10 250 24,5 622 16,0 406,4 20,0 507 169 

12 300 27,5 698 19,0 482,6 23,4 594 215 


Face-to-Face Dimensions : 

ASME B16.10 

End Flange Dimensions : 

2 in - 12 in ASME B16.5 

Design : 

ASME B.16.34 

AY03F-WCB 



ALFA Y-STRAINER Class 300, Raised Face Flange End, A216 Gr.WCB Body 

Dimensions and Weights Class 300 

Nominal Size 

Face-to-Face Flanged OD 

Height Weight 

L 

D 

H 

Wt 

inc mm inc mm inc mm inc mm Kgs 

2 50 10,5 267 6,5 165,1 6,7 170 15 

2 1/2 65 11,5 292 7,5 190,5 7,2 184 18 

3 80 12,5 318 8,2 209,5 9,2 234 35 

4 100 14,0 356 10,0 254,0 11,4 290 51 

6 150 17,6 446 12,5 317,5 14,8 377 92 

8 200 22,0 559 15,0 381,0 17,6 447 182 

10 250 24,5 622 17,5 444,5 22,7 577 285 

12 300 28,0 711 20,5 520,7 26,3 667 307 

4 


Punching Sreen 


TM 

ALFA 

1. PERCENTAGE OPEN AREA 

Even the "MESH" is same, Open Area is not always same due to the diameter of wife. 

The formula of Open Area Percentage is as follows; 

Open Area Percentage + (a/axb)2 x 100(%) 

a: Width of Opening 

b: Diameter of Wire 

The details of wire as follows; 

A: Number of Wire 

B: Diameter of Wire 

C: Width of Opening 

D: Percentage of Open Area 

Mesh 

A B C 

SWG m/m m/m 

D 

5 20 0,914 4,166 67,3 

10 22 0,711 1,829 51,8 

20 28 0,356 0,914 51,8 

30 32 0,274 0,572 45,7 

40 36 0,193 0,442 48,4 

50 37 0,172 0,336 43,6 

60 38 0,152 0,271 41 

80 40 0,122 0,195 37,8 

100 42 0,102 0,152 35,8 

120 43 0,092 0,119 31,8 

150 45 1/2 0,66 0,103 37,1 

180 46 1/2 0,053 0,088 38,9 

200 47 0,051 0,076 35,8 

250 48 0,039 0,062 3737 

300 48 0,04 0,044 27,6 

2. OUTSIDE SCREEN (protecting net) 

For the outside Screen a stainless steel plate perforated in 60-degree staggered arrangement is used. 

For the Open Area you can use the formula bellow. 

Outside Screen Description Open Area Models of Strainers Remarks 

08 X P1.6 22,8 

15 ~ 50 

(Standard) 

P 

1 X P2 

22,8 

32 ~ 50 

(Request) 

0 

60 C 

P 

D 

1.2 X P2 

1.5 X P2,5 

32,8 

32,8 

65 ~100 

125 ~100 

3´ 

p 

R = 

6 

2 

91´ 

D 

= 

2 

P 

D 

´ ( 

P 

2 

2 

) ´ 100(%) 

2,5 X P4 

35,5 

200 ~ 250 

R : Open Area 

P : Pitch (mm) 

D : Diametter of Hole 

(mm) 

3 X P5 

32,8 

300 ~ 450 

5 



TM 

ALFA 

Series AY01F and AY03F 

Cast Steel Flanged Y-Strainers 

Design Features: 

• Strainers available with RF flanged (ANSI B16.5) or butt-weld (ANSI B16.25) end connections. 

• Strainer body meets ASME B16.5 and ASME B16.34. 

• One piece cast body. 

• Strainers equipped with bolted cover flange that utilize a flat gasket seal. 

• Bolted cover designed to meet the requirements of ASME Section VIII, Div.1,Appendix 2 

and/or ASME B16.5. 

• Upper and lower machined seats. 

• 304 SS perforated screens are standard. 

• Drain/Blow-off connection furnished with plug as standard. 

• Generous screen area and properly proportioned straining chamber to minimize initial 

pressure drop while maximizing time between cleanings. 

Parts List and Standard Materials 

Part Carbon Steel Stainless Steel 

Body A216-WCB A351-CF8M 

Cover A216-WCB A351-CF8M 

Screen 1 304SS 304SS 

Plug A105 A182-316 

Gasket 1,2 

Series AY01F 

Teflon 

Series AY03F 

304 SS Spiral 

Wound 

Stud A193-B7 A193-B8-1 

Nut 

Series AY01F 

Teflon 

Series AY03F 

304 SS Spiral 

Wound 

A194-2H A194-8 

Notes: 1. Recommended Spares. 

2. Non-asbestos fabric gasket may be substituted at manufacturers option. 

3. Also avalable in A352-LCC. 

Lower Temperature Limits 

Body Material L ower Limit ¡F (¡C) 

WCB -20 (-28.9) 

CF8M -20 (-28.9) 

pressure Temperature chart (in accordance with ASME B16.5, WCB) 

Temperature ( o F) 

900 

800 

700 

600 

500 

400 

300 

200 

(2) 

(3) 

(1) 

100 

0 

AY01F 

AY03F 

100 200 300 400 500 600 700 800 

Pressure (Psig) 

Notes: 1.Teflon and blueguard limited to 400°F maximum sustained operating temperature. 

When operating ALFA Series AY01F strainers at higher temperatures please consult factory. 

2. Grap hite filled 304 SS Spiral Wound gaskets limited to 900°F in an oxidizing atmosphere. 

When operating ALFA Series AY03F strainers at higher temperatures please consult factory. 

3. Upon pro longed exposure to temperatures above 800°F, the carbide phase of carbon steel may be converted to graphite. 

6 



TM 

ALFA 

Series AY01F and AY03F 

Cast Steel Flanged Y-Strainers 

Standard Screens 

Size range 

Opening 

B 

1 /2 ” - 1 1 / 2 ” 0.032 in. 

15mm - 40mm 

0.8mm 

A 

2” - 3” 0.045 in. 

50mm - 80mm 

1.2mm 

4” & larger 0.125 in. 

100mm & larger 

3.2mm 

C 

CLEARANCE 

FOR SCREEN 

REMOVAL 

D 

Note: Flanged end strainer shown. 

Butt-weld end strainer dimensionally the same. 

E N.P.T. 

Dimensional Data (Classes 150, 300) 

Size 1 

in 

(mm) 

A 

in 

(mm) 

B 

in 

(mm) 

C 

in 

(mm) 

D 

in 

(mm) 

E NPT 

in 

(mm) 

2 

Weight 

½” 

15 

3/4” 

20 

1” 

25 

1 ½” 

40 

2” 

50 

2 ½” 

65 

3” 

80 

4” 

100 

5” 

125” 

6” 

150 

8” 

200 

10” 

250 

12” 

300 

150 300 150 300 150 300 150 300 150 300 150 300 

0.5 

13 

0.79 

19 

1.00 

25 

1.50 

38 

2.0 

51 

2.5 

64 

3.00 

76 

4.00 

102 

5.00 

127 

6.00 

152 

8.00 

203 

10.00 

254 

12.00 

305 

0.5 

13 

0.79 

19 

1.00 

25 

1.50 

38 

2.0 

51 

2.5 

64 

3.00 

76 

4.00 

102 

5.00 

127 

6.00 

152 

8.00 

203 

10.00 

254 

12.00 

305 

6.00 

152 

7.00 

178 

750 

191 

9.00 

229 

8.63 

219 

10.25 

260 

11.63 

295 

14.38 

365 

17.63 

448 

18.63 

473 

24.38 

619 

26.00 

660 

30.38 

772 

6.50 

165 

7.75 

197 

788 

200 

10.50 

267 

9.00 

229 

10.88 

276 

12.63 

320 

14.63 

372 

18.50 

470 

19.75 

502 

25.00 

635 

27.75 

705 

33.00 

838 

General: 

1. For further optional features see page 19. 

2. Other perforations and screen materials available. 

Please see page 20. 

3.88 

99 

4.25 

108 

4.75 

121 

5.63 

143 

5.25 

133 

7.50 

191 

7.69 

195 

9.13 

232 

11.00 

279 

13.00 

330 

15.32 

389 

19.13 

486 

22.00 

559 

Notes: 1. Other sizes available Consult factory. 

2. Other sizes and connection types available. Consult factory. 

7 

4.25 

108 

5.00 

127 

5.50 

140 

7.00 

178 

5.69 

145 

7.19 

183 

8.13 

207 

9.63 

245 

15.38 

391 

15.00 

381 

16.50 

419 

21.19 

538 

24.31 

617 

4.75 

121 

5.75 

146 

6.38 

162 

9.00 

229 

7.50 

191 

10.50 

267 

10.88 

276 

13.00 

330 

17.00 

432 

18.38 

467 

21.63 

549 

27.00 

686 

31.00 

787 

5.75 

146 

6.75 

171 

8.12 

206 

10.25 

260 

8.00 

203 

10.25 

260 

11.50 

292 

13.63 

346 

21.50 

546 

21.50 

546 

22.00 

559 

30.00 

762 

34.38 

873 

1/4 

8 

3/8 

10 

½ 

15 

½ 

15 

½ 

15 

3/4 

20 

1 

25 

1 ½ 

40 

2 

50 

2 

50 

2 

50 

2 

50 

2 

50 

1/4 

8 

3/8 

10 

½ 

15 

½ 

15 

½ 

15 

1 

25 

1 

25 

1 ½ 

40 

2 

50 

2 

50 

2 

50 

2 

50 

2 

50 

5.5 

2.5 

6.5 

3 

9 

4 

12 

5.5 

20 

9 

32 

14.5 

36 

16 

61 

28 

110 

50 

160 

73 

210 

95 

440 

200 

585 

265 

3. For pressure loss information see page 21 and 23. 

4. For ordering information please see page 30. 

5. Dimensions shown are subject to change. 

Contact factory for certified prints when required. 

8 

3.6 

14 

6.4 

15 

6.8 

32 

15 

26 

12 

36 

79 

55 

25 

88 

40 

180 

82 

200 

91 

290 

132 

520 

236 

680 

308 



TM 

ALFA 

Engineering Data 

Screen Openings for Y-Strainer 

Factors To Consider 

Purpose 

If the basket strainer is being used for protection rather than direct filtration,ALFA VALVES standard screens will 

suffice in most applications. 

Service 

With services that require extremely sturdy screens, such as high pressure/ temperature applications or services 

with high viscosities, ALFA VALVES recommends that perforated screens without mesh liners be used.If mesh 

is required to obtain a without mesh liners be used.If mesh is required to obtain a perf./mesh/perf.combination. 

Filtration Leve l 

When choosing a perf. or a mesh/perf.combination attention should be given to ensure overstraining does not occur. 

As a general rule the specified level of filtration should be no smaller than half the size of the particle to be removed. 

If too fine a filtration is specified the pressure drop through the strainer will increase very rapidly,possibly causing 

damage to the basket 

Screen Types/Dimensions 

1 /4 ” Dia. - 40% O.A. 

3 /16 ” Dia. - 50% O.A. 

5 /32 ” Dia. - 58% O.A 

1 /8 ” Dia. - 40% O.A. 

3 /32 ” Dia. - 39% O.A 

1 /16 ” Dia. - 37% O.A. 

3 /64 ” Dia. - 36% O.A. 

1 /32 ” Dia. - 40% O.A. 

0.027” Dia. - 23% O.A. 

20 Mesh - 49% O.A. 

0.035” Openings 

30 Mesh - 45% O.A. 


40 Mesh - 41% O.A. 


60 Mesh - 38% O.A. 


80 Mesh - 36% O.A. 


100 Mesh - 30% O.A. 


Notes: 1. Screen openings other than those shown above are readily available. 

ALFA VALVES inventories various mesh sizes as fine as 5 micron and perforated plate as coarse ½ “ Dia. 

2. Screens are available in a wide range of materials. 

ALFA VALVES inventories various screen material in carbon steel, stainless steel (304,316),alloy 20, monel 400, 

hastalloy C and titanium grade 2 

3. Custom manufactured screens are available upon request. Please consult factory. 

8 



TM 

ALFA 


Y-Strainer Pressure Drop - Liquids 

Y-Strainer Pressure Drop — Liquids (Sizes 1 / 4 - 1 1 / ) 2 

10 

FIGURE 1 

PRESSURE DROP (PSID) 

1 

1/4 

3/8 

1/2 

3/4 

1 

1 1 / 4 

1 1 / 2 

0.1 

0.1 

1 0 1100 

FLOW RATE (GPM) 

Y-Strainer Pressure Drop — Liquids (Sizes 2 -16 ) 

10 

FIGURE 2 


1 

2 

2 1 / 2 

3 

4 

5 

6 

8 

10 

12 

14 

16 

0.1 

10 

100 100010000 

FLOW RATE (GPM) 

Notes: Pressure drop curves are based on water flow with standard screens. 

9 



TM 

ALFA 


Screen Correction Factor Chart 

For Non-Standard and Mesh Lined Screens 

*Multiply values obtained from figure 1 thru 4 by the appropriate values shown below 

Size 

Range 

1 /4 ” - 1 1 / 2 

60% 

0.45 

0.65 

SCREEN OPENINGS 

% Screen Material Open Area 

50% 50% 50% 

0.55 

0.8 

Notes: 1. See page 20 for % Open Area’s of ALFA inventoried perforated plate. 

2. Standard screen foe sizes 1/4” to ½”is approximately a 30% open area screen media 

3. Standard screens for sizes 2” and larger is approximately a 40% open area screen media. 

0.7 

I 

I 

1.4 

20% 

1.15 

2.15 

Chart # 1 

Mesh lined standard screens 

% Screen Material Open Area 50% 

Example: 

Strainer Size : 11/ 4” 

Filtration: 100 Mesh lined 1 / 32 ” Perf. 

Flow rate: 

30 GPM 

Service: 

Water 

A) Using figure 1 the pressure drop is determined to be 1.0 psid 

with ALFA standard screen. 

B) Looking at page 20 we find that the % Open area of 100 mesh is 30%. 

C) Using chart 1 we read the correction factor to be 1.2 for 100 mesh lined 1 / 32 ” perf. 

D) Total pressure drop equals 1.0 x 1.2 = 1.2 psid clean. 

1) 

2) 

3) 

4) 

5) 

6) 

7) 

8) 

Viscosity and Density Correction Factor Chart 

* For use see instructions below. 

Chart # 2 Chart # 3 

Size 

Component 

Viscosity Body Loss 

Screen Loss Factor 

Range actor F 

CP factor Perf alone Mesh 30, 40, Mesh 60 to 300 Mesh 

(CF) 

(BF) (PF) Lined (MF) Lined (MF) Lined (MF) 

1 /4 ” - 1 1 / 2 ” 0.25 

2” - 16” 0.35 

How to Use: 

Using figurtes 1 or 2 determine the 

pressure drop (PI) trought the stainer 

with water flow and standard 

screens. 

If non_standard screens 

(i.e.40 mesh,etc) are being used 

apply factors in chart #1 to determine 

corrected pressure drop (P2) 

10 

25 

100 

200 

500 

1000 

2000 

Multiply PI or P2 (is used) by the specific gravity of the fluid actually through the strainer to get P3 

Using chart #2 multiply P3 by the appropriate Component factor (CF) to get P4 

Lets P5 = P3 - P4. 

Multiply P4 by the appropriate body Loss Factor (BF) in Chart #3 to get P6 

multiply P5 by the appropriate Sceen Loss factor (PF or MF) in chart #3 to get P7. 

Total pressure drop P8 = P6 + P7 

1 

1.2 

1.6 

2.2 

4.4 

8 

15.2 

1.15 

1.25 

1.4 

1.5 

1.6 

1.7 

1.9 

1.3 

2 

3 

4.5 

10 

15 

30 

1.4 

2.2 

4 

7 

15 

30 

60 

1.5 

2.5 

6.5 

11.5 

2.5 

50 

100 

Example: 

Strainer Size: 11/ 4” 

Filtration: 100 Mesh lined 1 / 32 

” Perf. 

Flow rate: 

30 GPM 

Specific Gravity: 1 

Viscosity: 

25 cP 

A) As shown in the above example, the corrected pressure drop (P2) + 1.2 psid 

B) Since S.G. = I.P3 = P2 =1.2 psid 

C) Using Chart #2 P4 = 0.25 x P3 = 0.30 psid 

D) P5 = 1.2 - 0.3 = 0.90 psid 

E) Using Chart #3 P6 = 0.3 x 1.2 = 0.36 psid 

F) Again using chart #3 P7 = 0.9 x 2.5 = 2.25 psid 

G) Total pressure drop P8 = 0.36 + 2.25 = 2.61 psid 

10 



TM 

ALFA 


Y-Strainer Pressure Drop - Saturated Steam 

(Sized 1/4 - 1 ½ ) 

Y-Strainer Pressure Drop — Saturated Steam (Sizes 1 / 4 - 1 1 / ) 2 

FIGURE 3 

STEAM FLOW (Lbs/hr) 

10000 

1000 

100 

INLET PRESSURE (PSIG) 

600 

400 

200 

160 

120 

80 

40 

10 20 


10 

1 

1/4 

3/8 3/8 

1/2 

3/4 

1 

11/4 

11/2 

0.1 

Notes: 1. Pre ssure drop curve is based on saturated steam flow with standard screens. 

See page 20 for correction factors to be used with other fluids and/or screen openings. 

2. Chart can be used for air and gas by using the following formula: 

Qs = 0.138Qg 

Example: 

(460+t) s.g. 

Service: Saturated Steam Flow 

Pressure : 400 psig 

Steam Flow: 1000 Lbs/hr 

Size: 11/ ” 

4 

{ } 

DP


TM 

ALFA 


Y-Strainer Pressure Drop - Saturated 

Steam ( Sized 2 to 16 ) 

Y-Strainer Pressure Drop - Saturated Steam (Sizes 2 - 16 ) 

FIGURE 4 

1000000 

INLET PRESSURE (PSIG) 

600 

400 

200 

160 

120 

80 

40 

20 

10 

STEAM FLOW (Lbs/hr) 

100000 

10000 

1000 


100 

10 

1 

0.1 

2 

2 1 / 2 

3 

4 

5 

6 

8 

10 

12 

14 

16 

Notes: 1. Pres sure drop curve is based on saturated steam flow with standard screens. 

See page 22 for correction factors to be used with other screen openings. 

2. Chart can be used for air and gas by using the following formula: 

Qs = 0.138Qg 

Example: 

Service: Saturated Steam Flow 

Pressure : 400 psig 

Steam Flow: 90,000 Lbs/hr 

Size: 8” 

DP


TM 

ALFA 


Correction Factors For Clogged Screens 

Correction Factors For Clogged Screens 

* Multiply values obtained from figures 1 thru 4 and Charts #1, #2 and #3 (if used) by the appropriate values shown below 

Chart # 4 

Ratio of Free Screen Area to Pipe Area 

% Clogged 10:1 8:1 6:1 4:1 3:1 2:1 1:1 

10% - - - - - - 3.15 

20% - - - - - 1.15 3.9 

30% - - - - - 1.4 5 

40% - - - - - 1.8 6.65 

50% - - - - 1.25 2.5 9.45 

60% - - - 1.15 1.8 3.7 14.5 

70% - - - 1.75 2.95 6.4 26 

80% - 1.1 1.75 3.6 6.25 14 58 

90% 2.3 3.45 6 13.5 24 55 - 

Notes: 1.See page 27 for the Ratio of Free Area to Pipe Area for Y-Strainers equipped with standard screens. 

2.For screens other than ALFA’s standard use the following formula to calculate the Ratio Free Area to Pipe Area. 

R = 

Ag x OA 

100Ap 

where; 

R R = Ratio Free Area to Pipe Area 

Ag = Gross screen area, sq. in. 

OA = Open area of screen media, 

Ap = Nominal area of pipe fitting, sq. in. 

Example # 1: 

Strainer Size: 4” 

ALFA Series: AY01F 

Filtration: 1/8” Perf. 

Flow rate: 300 GPM 

Service: Water 

% Clogged: 60% 

A) Using Figure #1 the pressure drop is determined to be 1.1 psid with 

ALFA VALVES standard screen. 

B) Looking at page 27 the Ratio of Free Area to Pipe Area for a 4” 

ALFA VALVES series AY01F strainer is equal to 2.72:1 (3:1 approx.). 

C) Using Chart #4 we read the correction factor to be 1.80 at 60% clogged. 

D) Total pressure drop equals 1.1 x 1.8 = 1.98 psid when 60% clogged. 

Example # 2: 


ALFA Series: AY03F 

Filtration: 3/16” Perf. 

Flow rate: 2000 GPM 

Service: Water 

% Clogged: 70% 

A) Using Figure #1 the pressure drop is determined to be 0.54 psid with 

ALFA VALVES standard screen. 

B) Looking at page 20 we find that the % Open area (OA) of 3/16” Perf. is 50%. 

C) Using Chart #1 we read the correction factor to be 0.8 for 3/16” Perf. 

D) Total clean pressure drop equals 0.54 x 0.8 = 0.43 psid. 

E) Since a non-standard screen is being used we must calculate the Ratio 

Free Area to Pipe Area using the above formula. 

F) Looking at page 27 we find AG = 753.12 in2,Ap = 113.10 in2. 

G) The Ratio Free Area to Pipe Area is calculated as 3.33:1. (3:1 approx.) 

H)Using Chart #4 we read the correction factor to be 2.95 at 70% clogged. 

I) Total pressure drop equals 0.43 x 2.95 = 1.27 psid when 70% clogged. 

13 


TM 

ALFA 


Y-Strainer Screen Burst Pressure 

Y-Strainer Screen Burst Pressure 

FIGURE 5 

60% 

50% 

40% 

30% 

20% 

10 GAUGE 

12 GAUGE 

16 GAUGE 

20 GAUGE 

24 GAUGE 

1 100 100 200 300 400 500 

SCREEN DIA. (In.) 

Note: 1. The above chart is for use with perforated plate and based on the formula: 

P = 

St 

R - 0.4t 

SOURCE: ASME Section VIII,Div. 1,Appendix 1. 

BURST PRESSURE (PSID) 

P = Burst pressure, psid 

S = Reduced allowable stress, psi 

t = Thickness of perforated plate, in. 

R = Outside radius of screen, in. 

2. The above chart is based on a screen material of stainless steel and is valid for operating temperatures up to 100°F The chart 

may be used for higher temperatures however it will result in a safety factor reduction. (At 100°F the charts safety factor is approximately 

two (2), at 1000°F the chart safety factor is reduced to approximately one (1). It is the responsibility of the user to determine an acceptable 

safety factor.) 

3. The chart may be used for carbon steel at an approximate 25% reduction in safety factor. 

4. See page 20 for % Open Area’s of ALFA’s inventoried perforated plate. 

Example: 


Screen Thickness: 

16 Gauge 

Screen Perforations: 0.125” (40% O.A.) 

• Locate screen diameter (assume a 10” diameter screen) 

• Follow vertical line to gauge thickness. 

• Follow horizontal line to required perforation open area. 

• Follow vertical line downwards to read burst pressure. 

• Burst pressure equals 80 psid approx. 

14 



Y-Strainer Effective Screen Area 

TM 

ALFA 

ALFA Series Y-Strainers - Effective Screen Areas 

ALFA 

Series 

Pipe 

Size (In) 

1/4 

3/8 

1/ 2 

3/4 

1 

1 1/4 

1 / 2 

2 

2 1/ 2 

3 

Std. 

Opening 

(In). 

0.32 

0.32 

0.32 

0.32 

0.32 

0.32 

0.32 

0.32 

0.45 

0.45 

Nominal 

Area of 

Pipe Fitting 

(Sq. In.) 

0.05 

0.11 

0.20 

0.44 

0.79 

1.23 

1.77 

3.14 

4.91 

7.07 

Gross 

Screen 

Area 

(Sq. In.) 

3.64 

3.64 

4.05 

6.63 

9.06 

12.14 

17.87 

30.07 

45.16 

60.30 

Free 

Area 

(Sq. In.) 

1.02 

1.02 

1.13 

1.86 

2.54 

3.40 

5.00 

8.42 

16.26 

21.71 

Ratio 

Free Area 

to Pipe 

Area 

20.79 

9.24 

5.78 

4.20 

3.23 

2.77 

2.83 

2.68 

3.31 

3.07 

Pipe 

Size (In) 

2 

2 1/ 2 

3 

4 

5 

6 

8 

10 

12 

14 

Std. 

Opening 

(In). 

0.045 

0.045 

0.045 

0.125 

0.125 

0.125 

0.125 

0.125 

0.125 

0.125 

Nominal 

Area of 

Pipe Fitting 

(Sq. In.) 

3.14 

4.91 

7.07 

12.57 

19.63 

28.27 

50.27 

78.54 

113.10 

137.89 

Gross 

Screen 

Area 

(Sq. In.) 

35.64 

44.33 

56.45 

98.91 

147.11 

197.92 

420.97 

645.99 

876.70 

1186.34 

Free 

Area 

(Sq. In.) 

12.83 

15.96 

20.32 

39.56 

58.85 

79.17 

168.39 

258.40 

350.68 

474.54 

Ratio 

Free Area 

to Pipe 

(Sq. In.) 

4.08 

3.25 

2.88 

3.15 

3.00 

2.80 

3.35 

3.29 

3.10 

3.44 

1/4 

3/8 

1/ 2 

3/4 

1 

1 1/4 

1 1/ 2 

2 

2 1/ 2 

3 

1/ 2 

3/4 

1 

1 1/4 

1 1/ 2 

2 

1/ 2 

3/4 

1 

1 1/4 

1 1/ 2 

2 

1/ 2 

3/4 

1 

1 1/4 

1 1/ 2 

2 

1/ 2 

3/4 

1 

1 1/4 

1 1/ 2 

2 

2 

2 1/ 2 

3 

4 

5 

6 

8 

10 

12 

14 

16 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.045 

0.045 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.045 

0.045 

0.045 

0.045 

0.045 

0.045 

0.045 

0.045 

0.045 

0.045 

0.045 

0.05 

0.11 

0.20 

0.44 

0.79 

1.23 

1.77 

3.14 

4.91 

7.07 

0.20 

0.44 

0.79 

1.23 

1.77 

3.14 

0.20 

0.44 

0.79 

1.23 

1.77 

3.14 

0.20 

0.44 

0.79 

1.23 

1.77 

3.14 

0.20 

0.44 

0.79 

1.23 

1.77 

3.14 

3.14 

4.91 

7.07 

12.57 

19.63 

28.27 

50.27 

78.54 

113.10 

137.89 

182.65 

4.71 

4.71 

4.71 

7.22 

9.33 

13.53 

19.25 

33.34 

35.52 

48.55 

2.80 

7.81 

8.76 

14.91 

20.98 

30.96 

3.11 

5.17 

7.85 

10.01 

14.28 

21.35 

2.82 

4.15 

8.14 

11.85 

16.59 

27.10 

5.08 

7.11 

11.90 

23.32 

23.28 

29.85 

30.07 

44.33 

56.45 

98.91 

147.11 

179.19 

334.38 

505.21 

665.77 

1186.34 

1446.85 

1.32 

1.32 

1.32 

2.02 

261 

3.79 

5.39 

9.34 

12.79 

17.48 

0.78 

2.19 

2.45 

4.18 

5.88 

8.67 

0.87 

1.45 

2.20 

2.80 

4.00 

5.98 

0.79 

1.16 

228 

3.32 

4.65 

9.75 

1.42 

1.99 

3.33 

6.53 

6.52 

10.75 

10.82 

15.96 

20.32 

39.56 

58.85 

71.68 

133.75 

202.08 

266.31 

474.54 

578.74 

26.38 

11.99 

6.59 

4.59 

3.31 

3.08 

3.05 

2.25 

2.60 

2.47 

3.99 

4.95 

3.12 

3.40 

3.32 

2.76 

4.44 

3.28 

2.80 

2.29 

2.26 

1.90 

4.03 

2.63 

2.90 

2.70 

2.63 

3.11 

7.25 

4.51 

4.24 

5.32 

3.69 

3.11 

3.45 

3.25 

2.88 

3.15 

3.00 

2.54 

2.66 

2.57 

2.35 

3.44 

3.17 

1/ 2 

3/4 

1 

1 1/ 2 

2 

2 1/ 2 

3 

4 

6 

8 

10 

12 

1/ 2 

3/4 

1 

1 1/ 2 

2 

2 1/ 2 

3 

4 

6 

8 

10 

12 

2 

2 1/ 2 

3 

4 

6 

8 

10 

12 

2 

3 

4 

6 

8 

2 

3 

4 

6 

0.032 

0.032 

0.032 

0.032 

0.045 

0.045 

0.125 

0.125 

0.125 

0.125 

0.125 

0.125 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.032 

0.045 

0.045 

0.045 

0.045 

0.045 

0.045 

0.045 

0.045 

0.045 

0.125 

0.125 

0.125 

0.125 

0.045 

0.125 

0.125 

0.125 

0.20 

0.44 

0.79 

1.77 

3.14 

4.91 

7.07 

12.57 

28.27 

50.27 

78.54 

113.10 

0.20 

0.44 

0.79 

1.77 

3.14 

4.91 

7.07 

12.57 

28.27 

50.27 

78.54 

113.10 

314 

4.91 

7.07 

12.57 

28.27 

48.77 

74.66 

108.43 

2.78 

6.51 

11.82 

25.97 

44.18 

2.78 

5.94 

10.29 

22.73 

5.91 

8.97 

12.71 

23.01 

28.27 

50.76 

62.59 

85.34 

210.88 

323.98 

513.21 

690.41 

6.75 

10.30 

14.99 

30.42 

29.85 

48.81 

68.22 

102.90 

230.83 

336.64 

559.50 

753.12 

39.17 

56.45 

74.96 

128.41 

255.94 

403.57 

602.08 

820.18 

49.06 

107.45 

152.93 

279.99 

454.60 

49.06 

107.45 

155.17 

307.12 

1.65 

2.51 

3.56 

6.44 

10.18 

18.27 

25.03 

34.14 

84.35 

129.59 

205.28 

276.17 

1.89 

2.88 

4.20 

8.52 

10.74 

17.57 

27.29 

41.16 

92.33 

134.66 

223.80 

301.25 

14.10 

20.32 

29.98 

51.37 

102.38 

161.43 

240.83 

328.07 

17.66 

42.98 

61.17 

112.00 

181.84 

17.66 

42.98 

62.07 

122.85 

8.43 

5.69 

4.53 

3.65 

3.24 

3.72 

3.54 

2.72 

2.98 

2.58 

2.61 

2.44 

9.45 

6.55 

5.32 

4.81 

3.42 

3.58 

3.86 

3.28 

3.27 

2.68 

2.85 

2.66 

4.49 

4.14 

4.24 

4.09 

3.62 

3.31 

3.23 

3.03 

6.36 

6.60 

5.17 

4.31 

4.12 

6.36 

7.24 

6.03 

5.40 

Notes:1.Values shown are for strainers with standard screens. 

2. Ratio Free Area to Pipe Area may be increased by changing perf. 

stagger or by using mesh. 

3. In many the specified screen burst pressure limits the maximum 

value for the Ratio Free Area to Pipe Area. 

15 


TM 

ALFA 

Installation and Maintenance Instructions 

for ALFA VALVES Y-Strainers 

A. 

B. 

C. 

D. 

E 

1.0 Strainer Installation Instructions 

Ensure all machined surfaces are free of defects and that the inside of the strainer is free of foreign objects. 

For horizontal pipelines, the strainer should be installed so that the drain connection is pointed downwards. 

For flanged end strainers, the flange bolting should be tightened gradually in a back and forth clockwise motion. Threaded 

end strainers should use an appropriate sealant. 

Once installed, increase line pressure gradually and check for leakage around joints. 

If the strainer is supplied with a start-up screen, monitor pressure drop carefully. 

IMPORTANT! Ultimate responsibility for strainer and material 

selection rests with the customer, as only the customer knows the 

particular use to which the strainer will be put and the exact 

operating parameters to which it will be subjected. 

2.0 Strainer Removal Instructions 

A. Drain piping. 

B. Vent line to relieve pressure. 

C. Loosen flange bolts (Flanged ends) 

D. Secure necessary lifting equipment to strainer assembly. 

E. Remove inlet/outlet flange bolts (flanged end), cut pipe (socket weld, buttweld and sweat end) or unthread 

(threaded ends) and carefully remove strainer. 

F. Tighten cover.The strainer is ready for line start-up. 

CAUTION SHOULD BE TAKEN DUE TO POSSIBLE 

EMISSION OF PROCESS MATERIAL FROM PIPING. 

ALWAYS ENSURE NO LINE PRESSURE EXISTS WHEN 

OPENING COVER. 

3.0 Maintenance Instructions 

For maximum efficiency, determine the length of time it takes for the pressure drop to double that in the clean condition. 

Once the pressure drop reaches an unacceptable value, shut down line and follow the “Strainer Removal Instructions” 

above. A pressure gauge installed before and after the strainer in-line will indicate pressure loss due to clogging and may 

be used to determine when cleaning is required. 

4.0 Trouble Shooting Guides and Diagnostic 

Techniques 

After pressurizing, inspect cover and other joints for leakage. Gasket replacement or cover tightening is necessary if leakage 

occurs. 

If the required filtration is not taking place, ensure the screen is installed in the correct position, that being flush to the upper and 

lower screen seating surfaces. 

5.0 Limited Warranty 

All products are warranted to be free of defects in material and workmanship for a period of one year from the date of shipment, 

subject to the limitations below: If the purchaser believes a product defective, the purchaser shall: 

A. Notify the manufacturer, state the alleged defect and request permission to return the product. 

B. If permission is given, return the product with transportation prepaid. If the product is accepted for return and found to be 

defective, the manufacturer will, at its discretion, either repair or replace the product, f.o.b. factory, within 60 days of receipt, or 

refund the purchase price. 

Other than to repair, replace or refund described above, the purchaser agrees that the manufacturer shall not be liable for any 

losses, costs, expenses or damages of any kind arising out of the product, its use, installation or replacement, labeling, 

instructions, information or technical data of any kind, description of product use, sample or model, warnings or lack of foregoing. 

No other warr nties, written or oral, expressed or implied, including the warranties of fitness for a particular purpose and 

merchantability, are made or authorized. No affirmation of fact, promise, description of product use or sample or model shall create 

any warranty from the manufacturer, unless signed by the president. These products are not manufactured, sold or intended for 

personal, family or household purposes. 

16 


HOW TO ORDER ALFA STRAINER VALVES 

SIZE 

FIG. No. 

08" 

A Y/S 01 F - WCB - 1 - RE - X 

Size 

Brand 

Identification 

Pressure 

Rating 

Connection 

Type 

Body 

Material 

Screen 

Material 

Screen 

Type 

Modificat 

ion/Fabri 

cation 

DESC : 8 in ALFA Y-STRAINER VALVE, ANSI CLASS 150, RAISED FACE, A216 Gr.WCB BODY MATERIAL, REGULAR SCREEN TYPE, 

304 SS SCREEN MATERIAL. 

Y-STRAINER SIZE 

BRAND 



CODE 

CONNECTION 

02 

2H 

03 

04 

06 

10 

12 

2" 

2-1/2" 

3" 

4" 

6" 

10" 

12" 

ALFA 

Y : Y-STRAINER 

S : BASKET 

STRAINER 

(SPECIAL) 

0Q 

01 

03 

06 






BODY MATERIAL 

CODE 

CONNECTION 

B61 


P 

FLAT FACE 

B62 

B14 


ASTM B148 Gr. C95600 

F 

RAISED FACE 

CI1 

DI3 


ASTM A395 

R 

RING JOINT 

DI5 

WCB 

ASTM A536 


B 

BUTT WELD 

C5 

WC6 



C 

COMBINATION 

WC9 

LCB 



A 

SPECIAL 

CF8 

CF8M 



SP 

SPECIAL ALLOY (FABRICATION) 

SCREEN MATERIAL 

SCREEN TYPE 

MODIFICATION 

CODE 

MATERIAL 

CODE 

MATERIAL 

1 410 SS 

4 

304 SS 

6 316 SS 

RE 

CO 

REGULAR 

CONICAL 

X 

Consult ALFA Factory for 

modification/fabrication 

Y 


RT 

RECTANGULAR 

17 


ALFATM 

TWIN PLATE & NON SLAM CHECK 


CONTENTS 

PRODUCT OVERVIEW 

WAFER TYPE 

ALFA TWIN PLATE CHECK VALVES 

TM 

ALFA 

l 

l 

l 

l 

l 

l 

l 

Retainer & Retainerless Wafer 

CLASS 150 

CLASS 300 

CLASS 600 

CLASS 900 

CLASS 1500 

CLASS 2500 

LUG TYPE ANSI 

l PART & MATERIALS LIST 

l CLASS 150 

l CLASS 300 

l CLASS 600 

l CLASS 900 

l CLASS 1500 

l CLASS 2500 

FLANGED TYPE ANSI 

l CLASS 150 

l CLASS 300 

l CLASS 600 

l CLASS 900 

SELECTION OF STUD BOLTS 

l CLASS 150 

l CLASS 300 

l CLASS 600 

l CLASS 900 

l CLASS 1500 

l CLASS 2500 

VALVE BODY OUTSIDE DIAMETER REFER to DIN 

HOW TO ORDER ALFA TWIN PLATE CHECK VALVES 

NON SLAM / NON SHOCK CHECK VALVES 

DIMENSIONAL DATA 

NON SHOCK / NON SLAM VALVES 

2 


Product Overview Types 

TM 

ALFA 


Referenced Standards 

API Std 594 

API Spec 6D 

API Std 598 

API Std 605 

- Wafer and Wafer-Lug Check Valves 

- Specification for Pipeline Valves (Gate, Plug, Ball, and Check Valves) 

- Valves Inspection and Testing 

- Large-Diameter Carbon Steel Flanges (Nominal Pipe Sizes 26 through 60, Classes 

75, 150, 300, 400, 600, and 900) 

ASME B1.1 - Unified Inch Screw Threads (UN and UNR Thread Form) 

ASME B1.20.1 - Pipe Threads, General Purpose (Inch) 

ASME B16.1 - Cast Iron Flanges and Flanged Fittings 

ASME B16.5 - Pipe Flanges and Flanged Fittings 

ASME B16.10 - Face-to-Face and End-to-End Dimensions of Valves 

ASME B16.20 - Ring-Joint Gaskets and Grooves for Steel Pipe Flanges 

ASME B16.34 - Valves-Flanged, Threaded and Welding End 

ASME B16.42 - Ductile Iron Pipe Flanges and Flanged Fittings, Classes 150 and 300 

MSS SP-6 

MSS SP-25 

MSS SP-44 

- Standard Finishes for Contact Faces of Pipe Flanges and Connecting-End Flanges 

of Valves and Fittings 

- Standard Marking System for Valves, Fittings, Flanges and Unions 

- Large Steel Pipe Line Flanges 

Wafer Dual Plate Metal 

High Pressure 

Dual Plate Check 

Full Lug Dual Plate Check 

Rubber Liner Wafer Dual Plate 

Double Flange 

Wafer Dual Plate 

3 

No Slam Check Valve 




TM 

ALFA 

Springs 

Action 

Flow Velocity 

Closed Partially Open Fully Opened Closed 

In response to a force caused by velocity of flow which acts at the center of the sealed surface area, the 

contact point of spring leg's force act beyond the center of the plate area , causing the heel to open first. This 

action prevents excessive wear of the area of seats. The Twin Plates has its own torsion spring, which 

provide independent closing action that reacts automatically when the velocity of flow decreases. The 

dynamic response of Spring action moves the toe of the plates to close first to the body seats with the short 

distance and time of travel. This prevents dragging of the heels of the plates and to reduce the water 

hammer effect therefore the seal integrity can stand for much longer periods. 

4 


RETAINER & RETAINERLESS WAFER 

Wafer Type 

TM 

ALFA 

LIFT HOLE 

B 

B 

D 

B 

SERRATED 

VIEW B : B. 

NO SERRATED 

RAISED FACE 

A 

A 

A 

C MIN. FLANGE BORE 

FLAT FACE 

RING JOINT 

RETAINER WAFER 

SECTION A : A. 

DIRECTION OF FLOW 

For Horizontal Flow the Pin must be Vertical 

LIFT HOLE 

D 

B 

SERRATED 

B 

B 

VIEW B : B. 

NO SERRATED 

RAISED FACE 

FLAT FACE 

A 

A 

A 


RING JOINT 

RETAINERLESS WAFER 




5 


ALFA DIMENSIONS AND WEIGHT 

Wafer Type ANSI Class Types 150 

TM 

ALFA 

LIFT HOLE 

D 

B 

B 

B 

SERRATED 

VIEW B : B. 

NO SERRATED 

RAISED FACE 

A 

A 

A 


FLAT FACE 

RING JOINT 


RETAINER WAFER 



" WP, WF " Wafer style especially used for applications where weight and space saving are important. Also 

flexibility in flange connections. The wafer valves are clamped between mating flanges by using stud bolts 

and nuts. 

ALFA Fig No. : AT01WP ; AT01WF 

SIZE (NPS) 

A 

( Wafer Type ANSI Class 150 ) 

B C D W 

(Outside Dia.) (Face to Face) (Min ID Flange) 

(Plate Travel) 

(Weight) 

in mm in mm in mm in mm in mm lbs kg 

2 50 4 1/8 104.8 2 3/8 60.3 - - - - 5 2.3 

2 1/2 65 4 7/8 123.8 2 5/8 66.7 - - - - 7.5 3.4 

3 80 5 3/8 136.5 2 7/8 73.0 2 1/8 54.0 1/4 6.4 9.5 4.3 

4 100 6 7/8 174.6 2 7/8 73.0 3 11/16 93.7 7/8 22.2 16.0 7.3 

5 125 7 3/4 196.9 3 3/8 85.7 4 7/16 112.7 1 25.4 21.0 9.5 

6 150 8 3/4 222.3 3 7/8 98.4 5 5/8 142.9 1 3/8 34.9 29.0 13.2 

8 200 11 279.4 5 127.0 7 1/4 184.2 1 3/4 44.5 52.0 23.6 

10 250 13 3/8 339.7 5 3/4 146.1 9 9/16 242.9 2 3/4 69.9 93.0 42.2 

12 300 16 1/8 409.6 7 1/8 181.0 11 1/4 285.8 3 76.2 147.0 66.7 

14 350 17 3/4 450.9 7 1/4 184.2 12 304.8 3 1/8 79.4 220.0 99.8 

16 400 20 1/4 514.4 7 1/2 190.5 14 7/16 366.7 4 3/8 111.1 240.0 108.8 

18 450 21 5/8 549.3 8 203.2 16 5/16 414.3 5 1/8 130.2 280.0 127.0 

20 500 23 7/8 606.4 8 5/8 219.1 18 1/4 463.6 6 152.4 400.0 181.4 

24 600 28 1/4 717.6 8 3/4 222.3 22 11/16 576.3 8 1/2 215.9 560.0 254.0 

30 750 34 3/4 882.7 12 304.8 28 23/32 729.5 11 279.4 1100.0 498.9 

36 900 41 1/4 1047.8 15 1/4 387.4 33 1/2 850.9 11 3/8 288.9 1415.0 641.7 

42 1050 48 1219.2 17 431.8 41 1041.4 15 1/4 387.4 2120.0 961.5 

48 1200 54 1/2 1384.3 20 5/8 523.9 47 1193.8 16 3/4 425.5 3660.0 1659.9 

54 1350 61 1549.4 21 1/4 539.8 49 1244.6 16 1/2 419.1 4600.0 2086.2 

6 



Wafer Type ANSI Types 

Class 300, 600 

TM 

ALFA 

" WP, WF " Wafer style especially used for applications where weight and space saving are important. Also 

flexibility in flange connections. The wafer valves are clamped between mating flanges by using stud bolts 

and nuts. 

ALFA Fig No. : AT03WP ; AT03WF 

( Wafer Type ANSI Class 300 ) 

SIZE (NPS) 

A 

B C D W 

(Outside Dia.) (Face to Face) (Min ID Flange) (Plate Travel) 

(Weight) 


2 50 4 3/8 111.1 2 3/8 60.3 - - - - 5.5 2.5 

2 1/2 65 5 1/8 130.2 2 5/8 66.7 - - - - 8.0 3.6 

3 80 5 7/8 149.2 2 7/8 73.0 2 1/8 54.0 1/4 6.4 11.5 5.2 

4 100 7 1/8 181.0 2 7/8 73.0 3 11/16 93.7 7/8 22.2 16.5 7.5 

5 125 8 1/2 215.9 3 3/8 85.7 4 7/16 112.7 1 25.4 28.0 12.7 

6 150 9 7/8 250.8 3 7/8 98.4 5 5/8 142.9 1 3/8 34.9 35.0 15.9 

8 200 12 1/8 308.0 5 127.0 7 1/4 184.2 1 3/4 44.5 73.0 33.1 

10 250 14 1/4 362.0 5 3/4 146.1 9 9/16 242.9 2 3/4 69.9 130.0 59.0 

12 300 16 5/8 422.3 7 1/8 181.0 11 1/4 285.8 3 76.2 171.0 77.6 

14 350 19 1/8 485.8 8 3/4 222.3 12 1/4 311.2 3 3/16 81.0 228.0 103.4 

16 400 21 1/4 539.8 9 1/8 231.8 12 11/32 313.5 3 3/32 78.6 315.0 142.9 

18 450 23 1/2 596.9 10 3/8 263.5 13 9/32 337.3 3 1/4 82.6 415.0 188.2 

20 500 25 3/4 654.1 11 1/2 292.1 14 31/32 380.2 3 5/8 92.1 570.0 258.5 

24 600 30 1/2 774.7 12 1/2 317.5 19 5/12 493.2 5 3/16 131.8 780.0 353.7 

30 750 37 1/2 952.5 14 1/2 368.3 26 1/2 673.1 8 21/32 219.9 1400.0 634.9 

36 900 44 1117.6 19 1/4 489.0 30 762.0 11 1/16 281.0 2600.0 1179.1 

42 1050 45 1/2 1155.7 22 3/8 568.3 41 1041.4 14 1/4 362.0 3500.0 1587.3 

48 1200 52 1320.8 20 5/8 523.9 45 1143.0 14 1/2 368.3 4600.0 2086.2 

ALFA Fig No. : AT06WP ; AT06WF ; AT06WR ( Wafer Type ANSI Class 600 ) 

SIZE (NPS) 

A 

B C D W 


(Weight) 


2 50 4 3/8 111.1 2 3/8 60.3 1 15/16 49.2 - - 8 3.6 

2 1/2 65 5 1/8 130.2 2 5/8 66.7 2 5/16 58.7 1/8 3.2 11.0 5.0 

3 80 5 7/8 149.2 2 7/8 73.0 2 29/32 73.8 15/32 11.9 15.0 6.8 

4 100 7 1/8 181.0 3 1/8 79.4 3 13/16 96.8 23/32 18.3 27.0 12.2 

5 125 9 1/2 241.3 4 1/8 104.8 4 13/16 122.2 1 25.4 50.0 22.7 

6 150 10 1/2 266.7 5 3/8 136.5 5 3/4 146.1 1 7/16 36.5 66.0 29.9 

8 200 12 5/8 320.7 6 1/2 165.1 7 5/8 193.7 2 50.8 115.0 52.2 

10 250 15 3/4 400.1 8 3/8 212.7 9 9/16 242.9 2 9/32 57.9 230.0 104.3 

12 300 18 457.2 9 228.6 11 3/8 288.9 3 15/32 88.1 328.0 148.8 

14 350 19 3/8 492.1 10 3/4 273.1 12 1/2 317.5 3 3/4 95.3 452.0 205.0 

16 400 22 1/4 565.2 12 304.8 14 5/16 363.5 4 5/16 109.5 637.0 288.9 

18 450 24 1/8 612.8 14 1/4 362.0 16 1/8 409.6 4 11/16 119.1 886.0 401.8 

20 500 26 7/8 682.6 14 1/2 368.3 17 15/16 455.6 5 5/16 134.9 1115.0 505.7 

24 600 31 1/8 790.6 17 1/4 438.2 21 9/16 547.7 6 9/16 166.7 2034.0 922.4 

30 750 38 1/4 971.6 19 7/8 504.8 28 3/4 730.3 9 9/16 242.9 3370.0 1528.3 

36 900 44 1/2 1130.3 25 635.0 33 3/4 857.3 11 15/16 303.2 6298.0 2856.2 

42 1050 51 1295.4 27 5/8 701.7 39 1/2 1003.3 14 1/4 362.0 8441.0 3828.1 

7 



Wafer Type ANSI Types 

Class 900, 1500, 2500 

TM 

ALFA 

ALFA Fig No. : AT09WF ; AT09WR ( Wafer Type ANSI Class 900 ) 

SIZE (NPS) 

A 

B C D 

W 


(Weight) 


2 50 5 5/8 142.9 2 3/4 69.9 1 15/16 49.2 - - 12 5.4 

2 1/2 65 6 1/2 165.1 3 1/4 82.6 2 5/16 58.7 1/16 1.6 16.0 7.3 

3 80 6 5/8 168.3 3 1/4 82.6 2 29/32 73.8 5/16 7.9 23.0 10.4 

4 100 8 1/8 206.4 4 101.6 3 13/16 96.8 9/16 14.3 42.0 19.0 

5 125 - - - - - - - - - - 

6 150 11 3/8 288.9 6 1/4 158.8 5 3/16 131.8 1 1/16 27.0 110.0 49.9 

8 200 14 1/8 358.8 8 1/8 206.4 6 13/16 173.0 1 13/32 35.7 210.0 95.2 

10 250 17 1/8 435.0 9 1/2 241.3 8 1/2 215.9 1 13/16 46.0 365.0 165.5 

12 300 19 5/8 498.5 11 1/2 292.1 10 1/8 257.2 2 5/16 58.7 640.0 290.2 

14 350 20 1/2 520.7 14 355.6 11 1/2 292.1 2 1/2 63.5 924.0 419.0 

16 400 22 5/8 574.7 15 1/8 384.2 12 13/16 325.4 2 5/8 66.7 1150.0 521.5 

18 450 25 1/8 638.2 17 3/4 450.9 14 7/16 366.7 2 3/4 69.9 1316.0 596.8 

20 500 27 1/2 698.5 17 3/4 450.9 17 15/16 455.6 5 5/16 134.9 1423.0 645.4 

24 600 33 838.2 19 1/2 495.3 21 1/2 546.1 5 5/8 142.9 2724.0 1235.4 


SIZE (NPS) 

A 

B C D W 


(Weight) 


2 50 5 5/8 142.9 2 3/4 69.9 1 11/16 42.9 - - 13.0 5.9 

2 1/2 65 6 1/2 165.1 3 1/4 82.6 2 1/8 54.0 1/16 1.6 16.0 7.3 

3 80 6 5/8 168.3 3 1/4 82.6 2 5/8 66.7 5/16 7.9 23.0 10.4 

4 100 8 1/8 206.4 4 101.6 3 7/16 87.3 9/16 14.3 42.0 19.0 

5 125 - - - - - - - - - - 

6 150 11 1/8 282.6 6 1/4 158.8 5 3/16 131.8 1 1/16 27.0 110.0 49.9 

8 200 13 7/8 352.4 8 1/8 206.4 6 13/16 173.0 1 13/32 35.7 215.0 97.5 

10 250 17 1/8 435.0 9 3/4 247.7 8 1/2 215.9 1 11/16 42.9 375.0 170.1 

12 300 20 1/2 520.7 12 304.8 10 1/8 257.2 2 1/4 57.2 723.0 327.9 

14 350 22 3/4 577.9 14 355.6 11 1/2 292.1 2 1/2 63.5 938.0 425.4 

16 400 25 1/4 641.4 15 1/8 384.2 12 13/16 325.4 2 5/8 66.7 1379.0 625.4 

18 450 27 3/4 704.9 18 7/16 468.3 13 3/4 349.3 2 11/16 68.3 1850.0 839.0 

20 500 29 3/4 755.7 21 533.4 14 3/4 374.7 4 101.6 2743.0 1244.0 

24 600 35 1/2 901.7 22 558.8 15 1/8 384.2 4 1/8 104.8 5852.0 2654.0 


SIZE (NPS) 

A 

B C D 

W 


(Weight) 


2 50 5 3/4 146.1 2 3/4 69.9 1 11/16 42.9 - - 20.0 9.1 

2 1/2 65 6 5/8 168.3 3 1/4 82.6 2 1/8 54.0 1/16 1.6 28.0 12.7 

3 80 7 3/4 196.9 3 3/8 85.7 2 5/8 66.7 1/4 6.4 35.0 15.9 

4 100 9 1/4 235.0 4 1/8 104.8 3 7/16 87.3 7/16 11.1 59.0 26.8 

5 125 - - - - - - - - - - 

6 150 12 1/2 317.5 6 1/4 158.8 5 3/16 131.8 1 1/16 27.0 175.0 79.4 

8 200 15 1/4 387.4 8 1/8 206.4 6 13/16 173.0 1 11/16 42.9 280.0 127.0 

10 250 18 3/4 476.3 10 254.0 8 1/2 215.9 1 13/16 46.0 500.0 226.8 

12 300 21 5/8 549.3 12 304.8 10 1/8 257.2 2 3/16 55.6 958.0 434.5 

8 



Lug Type ANSI Types 

Class 150,300,600 

TM 

ALFA 

"LSP, LDF, LTF (Lug Solid) ; SBP, SDF, STF (Lug Scalloped) " 

Lug valves are furnished in full body design and scalloped design whenever possible to keep weight to a minimum. Also can be 

specified with threaded or thru-hole bolting. Lug style fitting/mounting between 2 flanges, also end-of-line valve. In several 

branches of industry, and chiefly in the chemical and petrochemical industries, notably as an end-of-line valve where lengths of 

pipes are to be dismounted frequently. These lug type valves are retainerless design. 

Lug Type ANSI Class 150 

ALFA Fig No. : AT01LSP ; AT01LDF ; AT01LTF (Lug Solid) 

AT01SBP ; AT01SDF ; AT01STF (Lug Scalloped) 

SIZE (NPS) 

A 

(Outside Dia.) 

in mm in mm in mm in mm lbs kg 

2 50 6 1/2 165.1 2 3/8 60.3 1 15/16 49.2 15.5 7.0 

2 1/2 65 7 1/2 190.5 2 5/8 66.7 2 11/32 59.5 16.0 7.3 

B 

(Face to Face) 

3 80 8 1/4 209.6 2 7/8 73.0 2 29/32 73.8 17.5 7.9 

4 100 9 228.6 2 7/8 73.0 3 53/64 97.2 26.5 12.0 

6 150 11 279.4 3 7/8 98.4 5 49/64 146.4 45.5 20.6 

C 

(Min ID Flange) 

W 

(Weight) 


ALFA Fig No. : AT03LSP ; AT03LDF ; AT03LTF (Lug Solid) 

AT03SBP ; AT03SDF ; AT03STF (Lug Scalloped) 

SIZE (NPS) 

A B C 

W 


(Face to Face) (Min ID Flange) 

(Weight) 


2 50 6 1/2 165.1 2 3/8 60.3 1 15/16 49.2 16.5 7.5 

2 1/2 65 7 1/2 190.5 2 5/8 66.7 2 11/32 59.5 20.5 9.3 

3 80 8 1/4 209.6 2 7/8 73.0 2 29/32 73.8 29.0 13.2 

4 100 10 254.0 2 7/8 73.0 3 53/64 97.2 34.5 15.6 

5 125 11 279.4 3 3/8 85.7 4 13/16 122.2 50.0 22.7 

6 150 12 1/2 317.5 3 7/8 98.4 5 49/64 146.4 82.5 37.4 

8 200 15 381.0 5 127.0 7 5/8 193.7 132.0 59.9 

10 250 17 1/2 444.5 5 3/4 146.1 9 9/16 242.9 264.0 119.7 


ALFA Fig No. : AT06LDF ; AT06LDR ; AT06LTF ; AT06LTR (Lug Solid) 

AT06SDF ; AT06SDR ; AT06STF ; AT06STR (Lug Scalloped) 

SIZE (NPS) 

A 


B 



(Weight) 


2 50 6 1/2 165.1 2 3/8 60.3 1 15/16 49.2 17.0 7.7 

2 1/2 65 7 1/2 190.5 2 5/8 66.7 2 11/32 59.5 21.0 9.5 

3 80 8 1/4 209.6 2 7/8 73.0 2 29/32 73.8 29.0 13.2 

4 100 10 3/4 273.1 3 1/8 79.4 3 53/64 97.2 48.0 21.8 

6 150 14 355.6 5 3/8 136.5 5 49/64 146.4 180.0 81.6 

8 200 16 1/2 419.1 6 1/2 165.1 7 5/8 193.7 291.0 132.0 

10 250 20 508.0 8 3/8 212.7 9 9/16 242.9 536.0 243.1 

C 

W 

9 



Lug Type ANSI Types 

Class 900,1500, 2500 

TM 

ALFA 

"LSP, LDF, LTF (Lug Solid) ; SBP, SDF, STF (Lug Scalloped) " 

Lug valves are furnished in full body design and scalloped design whenever possible to keep weight to a minimum. Also can be 

specified with threaded or thru-hole bolting. Lug style fitting/mounting between 2 flanges, also end-of-line valve. In several branches 

of industry, and chiefly in the chemical and petrochemical industries, notably as an end-of-line valve where lengths of pipes are to be 

dismounted frequently. These lug type valves are retainerless design. 




SIZE (NPS) 

A B C W 

(Outside Dia.) (Face to Face) (Min ID Flange) (Weight) 


2 50 8 1/2 215.9 2 3/4 69.9 1 11/16 42.9 35.0 15.9 

3 80 9 1/2 241.3 3 1/4 82.6 2 5/8 66.7 52.0 23.6 

4 100 11 1/2 292.1 4 101.6 3 7/16 87.3 94.0 42.6 

6 150 15 381.0 6 1/4 158.8 5 3/16 131.8 248.0 112.5 

8 200 18 1/2 469.9 8 1/8 206.4 6 13/16 173.0 437.0 198.2 

10 250 21 1/2 546.1 9 1/2 241.3 8 1/2 215.9 775.0 351.5 




SIZE (NPS) 

A 


B 



(Weight) 


2 50 8 1/2 215.9 2 3/4 69.9 1 11/16 42.9 35.5 16.1 

3 80 10 1/2 266.7 3 1/4 82.6 2 5/8 66.7 68.0 30.8 

4 100 12 1/4 311.2 4 101.6 3 7/16 87.3 110.0 49.9 

6 150 15 1/2 393.7 6 1/4 158.8 5 3/16 131.8 258.0 117.0 

8 200 19 482.6 8 1/8 206.4 6 13/16 173.0 486.0 220.4 

10 250 23 584.2 9 3/4 247.7 8 1/2 215.9 914.0 414.5 

12 300 26 1/2 673.1 12 304.8 10 1/8 257.2 1415.0 641.7 

C 

W 




SIZE (NPS) 

A B C W 

(Outside Dia.) (Face to Face) (Min ID Flange) (Weight) 


2 50 9 1/4 235.0 2 3/4 69.9 1 11/16 42.9 46.0 20.9 

3 80 12 304.8 3 3/8 85.7 2 5/8 66.7 89.0 40.4 

4 100 14 355.6 4 1/8 104.8 3 7/16 87.3 147.0 66.7 

6 150 19 482.6 6 1/4 158.8 5 3/16 131.8 374.0 169.6 

8 200 21 3/4 552.5 8 1/8 206.4 6 13/16 173.0 678.0 307.5 

10 250 26 1/2 673.1 10 254.0 8 1/2 215.9 1229.0 557.4 

12 300 30 762.0 12 304.8 10 1/8 257.2 1872.0 849.0 

10 



Types 

Flanged Type ANSI 

Class 150,300 

TM 

ALFA 

" P, F " Flanged style mounting between and independent bolting to 2 flanges where the lay length of the body 

permits installation of two heavy nuts between the flanges, also end-of-line valve to full pressure rating. In almost 

all branches of industry, especially if the valve is called upon to work under arduous conditions and double 

flanged version is required. These flanged type valves are retainerless design. 

Class 150 ALFA Fig No. : AT01P ; AT01F 

SIZE (NPS) 

A 

B C W 


(Weight) 


8 200 13 1/2 342.9 5 127.0 7 1/4 184.2 90.0 40.8 

10 250 16 406.4 5 3/4 146.1 9 9/16 242.9 185.0 83.9 

12 300 19 482.6 7 1/8 181.0 11 1/4 285.8 216.0 98.0 

14 350 21 533.4 7 1/4 184.2 12 304.8 270.0 122.4 

16 400 23 1/2 596.9 7 1/2 190.5 14 7/16 366.7 351.0 159.2 

18 450 25 635.0 8 203.2 16 5/16 414.3 402.0 182.3 

20 500 27 1/2 698.5 8 5/8 219.1 18 1/4 463.6 546.0 247.6 

24 600 32 812.8 8 3/4 222.3 22 11/16 576.3 853.0 386.8 

30 750 38 3/4 984.3 12 304.8 28 23/32 729.5 1510.0 684.8 

36 900 46 1168.4 14 1/2 368.3 35 889.0 2520.0 1142.9 

42 1050 53 1346.2 17 431.8 41 1041.4 4152.0 1883.0 

48 1200 59 1/2 1511.3 20 5/8 523.9 47 1193.8 5876.0 2664.9 

54 1350 66 1/4 1682.8 21 1/4 539.8 51 1/2 1308.1 - - 

Class 300 ALFA Fig No. : AT03P ; AT03F ; AT03R 

SIZE (NPS) 

A 

B C W 


(Weight) 


12 300 20 1/2 520.7 7 1/8 181.0 11 3/8 288.9 330.0 149.7 

14 350 23 584.2 7 1/4 184.2 12 1/2 317.5 425.0 192.7 

16 400 25 1/2 647.7 9 1/8 231.8 14 3/8 365.1 612.0 277.6 

18 450 28 711.2 10 3/8 263.5 16 1/8 409.6 842.0 381.9 

20 500 30 1/2 774.7 11 1/2 292.1 17 7/8 454.0 1069.0 484.8 

24 600 36 914.4 12 1/2 317.5 22 1/8 562.0 1506.0 683.0 

30 750 43 1092.2 14 1/2 368.3 28 3/4 730.3 3085.0 1399.1 

36 900 50 1270.0 19 482.6 35 889.0 4640.0 2104.3 

42 1050 50 3/4 1289.1 22 3/8 568.3 41 1041.4 8664.0 3929.3 

48 1200 57 3/4 1466.9 24 3/4 628.7 47 1193.8 9945.0 4510.2 

11 



Flanged Type ANSI 

Class 600,900 

TM 

ALFA 

" P, F, R " Flanged style mounting between and independent bolting to 2 flanges where the lay length of the body 

permits installation of two heavy nuts between the flanges, also end-of-line valve to full pressure rating. In almost 

all branches of industry, especially if the valve is called upon to work under arduous conditions and double 

flanged version is required. These flanged type valves are retainerless design. 

Class 600 ALFA Fig No. : AT06P ; AT06F ; AT06R 

SIZE (NPS) 

A 

B C W 


(Weight) 


12 300 22 558.8 9 228.6 11 3/8 288.9 608.0 275.7 

14 350 23 3/4 603.3 10 3/4 273.1 12 1/2 317.5 674.0 305.7 

16 400 27 685.8 12 304.8 14 3/8 365.1 942.0 427.2 

18 450 29 1/4 743.0 14 1/4 362.0 16 1/8 409.6 1218.0 552.4 

20 500 32 812.8 14 1/2 368.3 18 457.2 1600.0 725.6 

24 600 37 939.8 17 1/2 444.5 21 9/16 547.7 2448.0 1110.2 

30 750 44 1/2 1130.3 19 7/8 504.8 28 3/4 730.3 3823.0 1733.8 

36 900 51 3/4 1314.5 25 635.0 33 3/4 857.3 6047.0 2742.4 

42 1050 55 1/4 1403.4 27 5/8 701.7 39 1/2 1003.3 9975.0 4523.8 

Class 900 ALFA Fig No. : AT09F ; AT09R 

SIZE (NPS) 

A 

B 

C 

W 


(Weight) 


12 300 24 609.6 11 1/2 292.1 10 1/8 257.2 762.0 345.6 

14 350 25 1/4 641.4 14 355.6 11 1/2 292.1 1235.0 560.1 

16 400 27 3/4 704.9 15 1/8 384.2 12 7/8 327.0 1206.0 546.9 

18 450 31 787.4 17 3/4 450.9 14 1/2 368.3 1836.0 832.7 

20 500 33 3/4 857.3 17 3/4 450.9 18 457.2 3938.0 1785.9 

24 600 41 1041.4 19 1/2 495.3 21 1/2 546.1 4168.0 1890.2 

30 750 48 1/2 1231.9 25 635.0 26 660.4 6504.0 2949.7 

36 900 57 1/2 1460.5 28 711.2 31 787.4 - - 

Note : *for......................................................................................................................... 

12 



Raised Face Flanges 

C min 

ALFA 

C min 

Ring Joint Flanges 


VALVE SIZE 

(NPS) 

Number of 

Studs 

ANSI Pressure 

Class 150,300,600 

Diameter of Bolt 

(B) 

Raised Face 

(RF) 

TM 

ALFA 

Ring Joint 

(RJ) 

in mm in mm in mm in mm 

2 50 4 

5/8 15.9 5 3/4 146.1 6 1/4 158.8 

2 1/2 65 4 

5/8 15.9 6 1/4 158.8 7 177.8 

3 80 4 

5/8 15.9 6 3/4 171.5 7 1/4 184.2 

4 100 8 

5/8 15.9 6 3/4 171.5 7 1/4 184.2 

5 125 8 

3/4 19.1 7 1/2 190.5 8 203.2 

6 150 8 

3/4 19.1 8 203.2 8 1/2 215.9 

8 200 8 

3/4 19.1 9 1/2 241.3 10 254.0 

10 250 12 

7/8 22.2 10 1/2 266.7 11 279.4 

12 300 12 

7/8 22.2 12 304.8 12 1/2 317.5 

14 350 12 

1 25.4 12 3/4 323.9 13 1/4 336.6 

16 400 16 

1 25.4 13 1/4 336.6 13 3/4 349.3 

18 450 16 

1 1/8 28.6 14 1/4 362.0 14 3/4 374.7 

20 500 20 

1 1/8 28.6 15 381.0 15 1/2 393.7 

24 600 20 

1 1/4 31.8 15 3/4 400.1 16 1/4 412.8 

30 750 28 

1 1/4 31.8 21 1/4 539.8 22 3/4 577.9 

36 900 32 

1 1/2 38.1 26 1/4 666.8 39 990.6 

42 1050 36 

1 1/2 38.1 28 1/2 723.9 - - 

48 1200 44 

1 1/2 38.1 33 838.2 - - 

54 1350 44 

1 3/4 44.5 35 889.0 - - 



C min 

ALFA 

C min 


VALVE SIZE 

(NPS) 

Number of 

Studs 


(B) 

Raised Face 

(RF) 

Ring Joint 

(RJ) 


2 50 8 

5/8 15.9 6 152.4 6 3/4 171.5 

2 1/2 65 8 

3/4 19.1 6 3/4 171.5 7 1/2 190.5 

3 80 8 

3/4 19.1 7 177.8 8 203.2 

4 100 8 

3/4 19.1 7 1/2 190.5 8 1/4 209.6 

5 125 8 

3/4 19.1 8 1/4 209.6 9 228.6 

6 150 12 

3/4 19.1 9 228.6 9 3/4 247.7 

8 200 12 

7/8 22.2 10 1/2 266.7 11 1/4 285.8 

10 250 16 

1 25.4 12 1/4 311.2 13 330.2 

12 300 16 

1 1/8 28.6 14 355.6 14 3/4 374.7 

14 350 20 

1 1/8 28.6 16 406.4 16 3/4 425.5 

16 400 20 

1 1/4 31.8 17 431.8 17 3/4 450.9 

18 450 24 

1 1/4 31.8 18 1/2 469.9 19 3/4 501.7 

20 500 24 

1 1/4 31.8 19 3/4 501.7 20 1/2 520.7 

24 600 24 

1 1/2 38.1 21 3/4 552.5 22 3/4 577.9 

30 750 28 

1 3/4 44.5 27 1/4 692.2 28 1/2 723.9 

36 900 32 

2 50.8 32 1/4 819.2 15 1/2 393.7 

42 1050 36 

2 50.8 36 1/2 927.1 37 3/4 958.9 

48 1200 40 

2 50.8 40 1016.0 - - 


C min 

ALFA 

C min 



VALVE SIZE 

(NPS) 

Number of 

Studs 


(B) 

Raised Face 

(RF) 

Ring Joint 

(RJ) 


2 50 8 

5/8 15.9 6 3/4 171.5 7 177.8 

2 1/2 65 8 

3/4 19.1 7 1/2 190.5 7 3/4 196.9 

3 80 8 

3/4 19.1 8 203.2 8 1/4 209.6 

4 100 8 

7/8 22.2 9 1/4 235.0 9 1/4 235.0 

5 125 8 

1 25.4 10 3/4 273.1 11 279.4 

6 150 12 

1 25.4 12 1/4 311.2 12 1/2 317.5 

8 200 12 

1 1/8 28.6 14 1/4 362.0 14 1/2 368.3 

10 250 16 

1 1/4 31.8 17 431.8 17 1/4 438.2 

12 300 20 

1 1/4 31.8 18 457.2 18 457.2 

14 350 20 

1 3/8 34.9 20 1/4 514.4 20 1/2 520.7 

16 400 20 

1 1/2 38.1 22 1/4 565.2 22 1/2 571.5 

18 450 20 

1 5/8 41.3 25 1/4 641.4 25 1/2 647.7 

20 500 24 

1 5/8 41.3 26 660.4 26 1/4 666.8 

24 600 24 

1 7/8 47.6 30 1/4 768.4 30 3/4 781.1 

30 750 28 

2 50.8 34 1/4 870.0 34 3/4 882.7 

36 900 28 

2 1/2 63.5 41 1041.4 20 1/2 520.7 

42 1050 28 

2 3/4 69.9 47 1193.8 47 1/2 1206.5 

13 



ANSI Pressure Class 

900,1500,2500 

TM 

ALFA 


C min 


VALVE SIZE 

(NPS) 

Number of 

Studs 


(B) 

Raised Face 

(RF) 

Ring Joint 

(RJ) 


2 50 8 

7/8 22.2 8 3/4 222.3 8 3/4 222.3 

2 1/2 65 8 

1 25.4 9 3/4 247.7 9 3/4 247.7 

ALFA 

3 80 8 

7/8 22.2 9 1/4 235.0 9 1/4 235.0 

4 100 8 

1 1/8 28.6 11 279.4 11 279.4 

6 150 12 

1 1/8 28.6 14 355.6 14 1/4 362.0 

8 200 12 

1 3/8 34.9 17 431.8 17 1/4 438.2 

10 250 16 

1 3/8 34.9 19 482.6 19 482.6 

12 300 20 

1 3/8 34.9 21 3/4 552.5 21 3/4 552.5 

14 350 20 

1 1/2 38.1 25 635.0 25 1/2 647.7 

C min 


16 400 20 

1 5/8 41.3 26 3/4 679.5 27 685.8 

18 450 20 

1 7/8 47.6 30 3/4 781.1 31 1/2 800.1 

20 500 20 

2 50.8 31 1/2 800.1 32 1/4 819.2 

24 600 20 

2 1/2 63.5 36 3/4 933.5 37 1/4 946.2 



C min 

VALVE SIZE 

(NPS) 

Number of 

Studs 


(B) 

Raised Face 

(RF) 

Ring Joint 

(RJ) 


2 50 8 

7/8 22.2 8 3/4 222.3 8 3/4 222.3 

2 1/2 65 8 

1 25.4 9 3/4 247.7 9 3/4 247.7 

3 80 8 

1 1/8 28.6 10 1/2 266.7 10 1/2 266.7 

4 100 8 

1 1/4 31.8 12 304.8 12 304.8 

6 150 12 

1 3/8 34.9 16 3/4 425.5 16 3/4 425.5 

8 200 12 

1 5/8 41.3 19 3/4 501.7 20 1/4 514.4 

10 250 12 

1 7/8 47.6 23 1/4 590.6 23 1/2 596.9 

12 300 16 

2 50.8 27 685.8 27 3/4 704.9 


C min 


VALVE SIZE 

(NPS) 

Number of 

Studs 


(B) 

Raised Face 

(RF) 

Ring Joint 

(RJ) 


2 50 8 

1 25.4 10 254.0 10 254.0 

2 1/2 65 8 

1 1/8 28.6 11 1/4 285.8 11 1/4 285.8 

3 80 8 

1 1/4 31.8 12 1/4 311.2 12 1/2 317.5 

4 100 8 

1 1/2 38.1 14 1/4 362.0 14 3/4 374.7 

6 150 8 

2 50.8 20 508.0 20 1/2 520.7 

8 200 12 

2 50.8 23 3/4 603.3 24 609.6 

10 250 12 

2 1/2 63.5 29 1/4 743.0 30 1/4 768.4 

12 300 12 

2 3/4 69.9 33 1/4 844.6 34 1/4 870.0 

14 


Valve Body Outside Diameter Refer to DIN 

TM 

ALFA 

Valve Body Outside Diameter "A" (DIN) 

SIZE 

PN 6, 10, 16 (ANSI 150) 

PN 25, 40 (ANSI 300) 

PN 64, 100 (ANSI 600) 

PN 160 

(ANSI 900) 

PN 250 PN 320 

(ANSI 1500) (ANSI 2500) 

PN 6 PN 10 PN 16 

PN 25 

PN 40 

PN 64 PN 100 

PN 160 

PN 250 PN 320 

in mm in mm in mm in mm in mm in mm in mm in mm in mm in mm in mm 

2 50 3 27/32 98 4 9/32 109 4 9/32 109 4 9/32 109 4 9/32 109 4 1/2 114 4 3/4 121 4 3/4 121 4 15/16 125 5 11/32 136 

2 1/2 65 4 5/8 117 5 1/16 129 5 1/16 129 5 1/16 129 5 1/16 129 5 1/2 140 5 3/4 146 5 3/4 146 6 1/8 156 6 25/32 172 

3 80 5 1/4 133 5 21/32 144 5 21/32 144 5 21/32 144 5 21/32 144 5 29/32 150 6 1/8 156 6 1/8 156 6 25/32 172 7 19/32 193 

4 100 6 1/16 154 6 7/16 164 6 7/16 164 6 11/16 170 6 11/16 170 6 29/32 175 7 3/16 183 7 3/16 183 8 1/16 205 9 1/8 232 

5 125 7 7/32 183 7 5/8 194 7 5/8 194 7 11/16 195 7 11/16 195 8 3/8 213 8 27/32 225 8 27/32 225 9 5/8 244 10 29/32 277 

6 150 8 7/32 209 8 21/32 220 8 21/32 220 8 7/8 225 8 7/8 225 9 13/16 249 10 7/32 260 10 7/32 260 11 9/32 287 12 11/32 314 

8 200 10 3/8 264 10 13/16 275 10 13/16 275 11 1/4 286 11 17/32 293 12 9/32 312 12 27/32 326 12 27/32 326 14 3/16 360 15 25/32 401 

10 250 12 17/32 318 13 330 13 1/32 331 13 1/2 343 13 31/32 355 14 7/16 367 15 1/2 394 15 3/8 391 17 1/2 445 19 11/32 491 

12 300 14 3/4 375 14 15/16 379 15 3/16 386 15 27/32 402 16 17/32 420 16 25/32 426 18 1/8 460 18 1/8 460 21 5/16 541 

14 350 16 23/32 425 17 5/16 440 17 17/32 445 18 3/32 460 18 3/4 476 19 1/4 489 20 1/4 514 

16 400 18 11/16 475 19 5/16 491 19 19/32 498 20 11/32 517 21 19/32 548 21 15/32 545 22 5/8 575 

18 450 - - 21 9/32 541 21 533 - - 22 19/32 574 - - - - 

20 500 22 13/16 579 23 7/16 595 24 13/16 630 24 11/16 627 24 13/16 630 25 31/32 660 27 27/32 707 

24 600 26 25/32 680 27 15/32 698 29 737 28 7/8 733 29 1/2 749 30 7/32 768 32 7/32 818 

28 700 30 15/16 786 32 813 31 3/4 806 

32 800 35 3/32 891 36 7/32 920 35 15/16 913 

36 900 39 3/32 993 40 5/32 1020 39 29/32 1014 

40 1000 43 1/32 1093 44 3/8 1127 44 1/2 1130 

48 1200 51 9/16 1310 52 15/16 1345 52 15/16 1345 

15 


NON SLAM/ NON SHOCK CHECK VALVES 

TM 

ALFA 

Design features & apllications 

1 2 

3 

5 

4 

1. 

2. 

3. 

4. 

5. 

FLOW OUTLET ZONE 

Designed for pressure recovery to minimize pressure loss and fluid turbulance results in smooth flow. 

DISC 

Standard disc is high strength with minimized weight to provide fast dynamic response. Design minimizes 

bearing loads, thus lengthens life of bearings and shaft. Offered in a variety of trim materials, with metal or 

resilient seating. 

SEAT 

Assures venturei flow by its configuration. Provides seating surface for disc and enables bubble-tightseal 

with resilient materials. 

FLOW INLET ZONE 

Venturi design maximizes flow impact on disc Provides streamlined flow when valve is fully open to minimized 

pressure loss. 

SPRING 

As the most strategic component, spring is designed meet specific service conditions-a cutomized approach 

APPLICATIONS 

Gas Transmission 

- Compressor Discharge 

Power Generation 

- Feed Water 

- Cooling water 

- Blowdown 

- Steam 

Petro-Chemical / Chemical Processing 

- Extreme Units 

- Propylene Units 

Hidrocarbon Processing 

- Catalic Cracking 

- Hydrotreating 

Water Transmition 

- Pipeline 

- Pump Compressor Station 

16 


Dimensional Data 

TM 

ALFA 

Flanged End Non-Slam Check Valve 

Class 150 RF 

Class 300 RF 

Style NCS 

Nominal 

Size 

2 

3 

4 

6 

8 

10 

12 

14 

16 

18 

20 

24 

30 

36 

42 

48 

54 

60 

Class 600 RF 

Nominal 

Size 

2 

3 

4 

6 

8 

10 

12 

14 

16 

18 

20 

24 

30 

36 

Standard 

Pattern 

A B A B 

- 

- 

- 

- 

- 

- 

22 

(10) 

40 

(18) 

80 

(36) 

- 100 

- (45) 

- 235 

- 

(106) 

465 

- 

(209) 

- 

725 

- (362) 

18.69 900 

(475) (405) 

26.56 1.470 

(675) 

24.00 

(610) 

33.44 

(848) 

21.88 

(662) 

1.740 

(783) 

1.990 

(896) 

3.860 

(810) (1.737) 

39.75 4.200 

(1010) 

(1.890) 

39.37 

8.650 

(3893) 

(10000) 

11.640 

55.69 

(5.238) 

(1.415) 19.000 

(1.614) (8.550) 

72.81 22.200 

1.849 (9.900) 

80.13 

(2.035) 

30.580 

(13.761) 

8.00 

(203) 

9.50 

(241) 

11.50 

292) 

14.00 

(356) 

19.50 

(495) 

24.50 

(622) 

27.50 

(699) 

31.00 

(787) 

34.00 

(837) 

38.50 

(978) 

38.50 

(978) 

42.00 

(1.067) 

60.00 

(1.524) 

77.00 

(1.956) 

78.75 

(2000) 

88.00 

(2.235) 

100.000 

(2.450) 

114.00 

(2896) 

Short 

Pattern 

Weight 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

575 

(259) 

970 

(437) 

935 

(420) 

1.450 

(663) 

2.600 

(1.170) 

2.975 

(1.449) 

6.050 

(2.723) 

9.510 

(4.280) 

14.190 

(386) 

18.700 

8.415 

25.650 

(11.543) 

Standard 

Pattern 

Short 

Pattern 

Weight 

A B A B 

11.50 

(292) 

14.13 

(359) 

17.00 

(432) 

22.00 

(559) 

26.00 

(660) 

31.00 

(787) 

33.00 

(838) 

35.00 

(889) 

39.00 

(991) 

43.00 

(1,092) 

47.00 

(1,194) 

55.00 

(1,397) 

65.00 

(1,651) 

82.00 

(2,083) 

10.44 

(265) 

13.00 

(330) 

9.56 

(243) 

15.38 

(391) 

12.25 

(311) 

14.38 

(365) 

17.25 

(438) 

18.69 

(475) 

21.44 

(545) 

31.88 

(810) 

31.88 

(810) 

31.88 

(810) 

39.75 

(1,010) 

47.81 

(1.214) 

37 

(17) 

68 

(31) 

155 

(70) 

290 

(131) 

500 

(225) 

870 

(392) 

1,265 

(569) 

1,610 

(725) 

2.050 

(923) 

2,550 

(1,148) 

2,800 

(1,260) 

4,500 

(2,025) 

7.800 

(3,510) 

18.040 

(8.118) 

32 

(14) 

58 

(26) 

120 

(54) 

240 

(108) 

360 

(162) 

600 

(270) 

685 

(308) 

1.010 

(455) 

1,250 

(563) 

2.200 

(990) 

2.230 

(1.004) 

3.330 

(1,499) 

5.700 

(2,565) 

11,400 

(5,130) 

Nominal 

Size 

2 

3 

4 

6 

8 

10 

12 

14 

16 

18 

20 

24 

30 

36 

42 

48 

54 

60 

Class 900 RF 

Nominal 

Size 

2 

3 

4 

6 

8 

10 

12 

14 

16 

18 

20 

24 

Standard 

Pattern 

Short 

Pattern 

Weight 

A B A B 

10.50 

(267) 

12.50 

(318) 

14.00 

(356) 

17.50 

(445) 

21.00 

(533) 

24.50 

(622) 

28.00 

(711) 

33.00 

(838) 

34.00 

(864) 

38.50 

(978) 

40.00 

(1.016) 

53.00 

(1,346) 

62.76 

(1.594) 

82.00 

(2.082) 

78.75 

(2,000) 

88.00 

(2,235) 

100.00 

(2,540) 

114.00 

(2,896) 

Standard 

Pattern 

Short 

Pattern 

Weight 

A B A B 

14.50 

(368) 

15.00 

(381) 

18.00 

(457) 

24.00 

(610) 

29.00 

(737) 

33.00 

(838) 

38.00 

(965) 

40.50 

(1,029) 

44.50 

(1,130) 

48.00 

(1,537) 

52.00 

(1,320) 

61.00 

(1,549) 

- 

- 

- 

- 

- 

- 

10.63 

(270) 

12.25 

(311) 

12.00 

(305) 

17.13 

(435) 

18.69 

(475) 

21.44 

(545) 

24.00 

(610) 

26.56 

(675) 

31.88 

(810) 

39.75 

(1,010) 

39.37 

(1,000) 

55.69 

(1,415) 

68.56 

(1,741) 

72.81 

(1,849) 

80.13 

(2.035) 

10.44 

(265) 

13.00 

(330) 

9.56 

(243) 

12.24 

(311) 

13.63 

(346) 

15.38 

(391) 

17.94 

(456) 

19.69 

(500) 

29.5 0 

(749) 

30.50 

(775) 

34.19 

(868) 

40.00 

(1,016) 

29 

(13) 

66 

(30) 

105 

(47) 

180 

(81) 

290 

(131) 

535 

(241) 

820 

(369) 

1,230 

(554) 

1,600 

(720) 

1,900 

(855) 

2,370 

(1,067) 

4,560 

(2,052) 

4,950 

(2,228) 

9,890 

(4,451) 

11,440 

(5,140) 

19,110 

(8,560) 

22,530 

(10,139) 

30,580 

(13,761) 

77 

(35) 

122 

(55) 

220 

(99) 

430 

(194) 

810 

(365) 

1.170 

(527) 

1,790 

(806) 

2,360 

(1,062) 

2,390 

(1,076) 

3,750 

(1,688) 

5,110 

(2,299) 

6.730 

(3029) 

- 

- 

- 

- 

- 

- 

125 

(56) 

205 

(92) 

355 

(160) 

535 

(241) 

700 

(315) 

905 

(407) 

1.175 

(529) 

1,800 

(810) 

2,930 

(1,319) 

3,590 

(1,612) 

5,400 

(2,430) 

9,310 

(4,190) 

14.080 

(6,336) 

19,000 

(8,550) 

2,6505 

(11,543) 

65 

(29) 

113 

(51) 

167 

(75) 

325 

(146) 

625 

(281) 

825 

(371) 

1,200 

(540) 

1,550 

(698) 

2,150 

(968) 

2,680 

(1,206) 

3.880 

(1,746) 

4.660 

(2,079) 

Class 1500 RF 

Nominal 

Size 

2 

3 

4 

6 

8 

10 

12 

14 

16 

18 

20 

24 

Class 2500 RF 

Nominal 

Size 

2 

3 

4 

6 

8 

10 

12 

Standard 

Pattern 

Short 

Pattern 

Weight 

A B A B 

14.50 

(368) 

18.50 

(470) 

21.50 

(546) 

27.75 

(705) 

32.75 

(832) 

39.00 

(991) 

44.50 

(1,130) 

49.50 

(1,257) 

54.50 

(1,384) 

60.50 

(1,537) 

65.50 

(1,664) 

76.50 

(1,943) 

Standard 

Pattern 

Style NC 

10.44 

(265) 

13.00 

(330) 

9.56 

(243) 

12.25 

(311) 

13.63 

(346) 

15.50 

(394) 

17.94 

(456) 

19.69 

(500) 

29.50 

(749) 

25.19 

(640) 

34.19 

(868) 

34.19 

(868) 

Short 

Pattern 

77 

(35) 

172 

(77) 

265 

(119) 

610 

(276) 

1.210 

(546) 

2,010 

(905) 

3,300 

(1,485) 

4,310 

(1,940) 

4,750 

(2,138) 

6,350 

(2,858) 

7,320 

(3,294) 

12.500 

(5,625) 

Weight 

65 

(29) 

149 

(67) 

200 

(90) 

455 

(205) 

810 

(365) 

1,080 

(468) 

2,020 

(909) 

2,780 

(1,251) 

3,230 

(1,454) 

4,340 

(1,953) 

5,520 

(2,484) 

8.800 

(3,960) 

A B A B 

17.75 

(451) 

22.75 

(578) 

26.50 

(673) 

36.00 

(914) 

40.25 

(1,022) 

50.00 

(1,270) 

56.00 

(1,422) 

13.00 

(330) 

13.00 

(330) 

12.19 

(310) 

15.86 

(403) 

17.69 

(449) 

22.13 

(562) 

36.00 

(914) 

112 

(50) 

245 

(110) 

370 

(167) 

1,080 

(486) 

1,432 

(644) 

3,285 

(1,487) 

3.898 

(1,754) 

95 

(43) 

210 

(95) 

290 

(131) 

800 

(360) 

1.100 

(495) 

2.130 

(959) 

3.200 

(1.440) 

Standard pattern dimensions comply with ASME B16.10. Short Pattern is offered when weight and space requirements are critical. 

Dimensions and weights are shown in inches and pounds with millimeters and kilograms in parenthesis. 

Consult factory for larger sizes and pressure classes not shown. 

17 


NON SLAM/ NON SHOCK CHECK VALVES 

TM 

ALFA 

Presure -Temperature Ratings 

Temperature 

C 

F 

MaximumNon-Shock service pressure 

Series 150 Series 300 Series 400 Series 600 

Steel 316SS Steel 316SS Steel 316SS Steel 316SS 

bar psi bar psi bar psi bar psi bar psi bar psi bar psi bar psi 

-29 to 38 

-20 to 100 

20.0 

285 

19.3 

275 

52.0 

740 

50.6 

720 

69.6 

990 

67.5 

960 

104.0 

1480 

101.2 

1440 

66 

150 

19.0 

270 

17.9 

255 

49.6 

705 

47.1 

670 

66.4 

945 

62.5 

890 

99.1 

1410 

94.2 

1340 

93 

200 

18.3 

260 

16.9 

240 

47.5 

675 

43.6 

620 

63.3 

900 

58.0 

825 

94.9 

1350 

87.2 

1240 

121 

250 

17.2 

245 

15.8 

225 

46.7 

665 

41.5 

590 

63.2 

885 

56.2 

800 

93.5 

1330 

83.0 

1180 

149 

300 

16.2 

230 

15.1 

215 

46.0 

655 

39.4 

560 

61.5 

875 

51.0 

725 

92.4 

1315 

78.7 

1120 

177 

350 

15.1 

215 

14.4 

205 

45.3 

645 

37.6 

535 

60.5 

860 

49.6 

705 

90.7 

1290 

75.6 

1075 

204 

400 

14.1 

200 

13.7 

195 

44.6 

635 

36.2 

515 

59.4 

845 

48.2 

685 

89.3 

1270 

72.4 

1030 

232 

450 

13.0 

185 

12.7 

180 

43.2 

615 

34.8 

495 

57.6 

820 

46.4 

660 

86.8 

1235 

69.6 

990 

260 

500 

12.0 

170 

12.0 

170 

42.2 

600 

33.7 

480 

56.2 

800 

44.6 

635 

84.4 

1200 

67.1 

955 

288 

550 

10.9 

155 

10.9 

155 

40.4 

575 

32.7 

465 

53.8 

765 

43.2 

615 

80.5 

1145 

65.4 

930 

316 

600 

9.8 

140 

9.8 

140 

38.7 

550 

31.6 

450 

51.3 

730 

42.2 

600 

77.0 

1095 

63.6 

905 

343 

650 

8.8 

125 

8.8 

125 

37.6 

535 

31.3 

445 

50.3 

715 

41.5 

590 

75.6 

1075 

62.6 

890 

371 

700 

7.7 

110 

7.7 

110 

37.6 

535 

30.2 

430 

49.9 

710 

40.4 

575 

74.9 

1065 

60.8 

865 

399 

750 

6.7 

95 

6.7 

95 

35.5 

505 

29.9 

425 

47.1 

670 

39.7 

565 

71.0 

1010 

59.4 

845 

427 

800 

5.6 

80 

5.6 

80 

28.8 

410 

29.2 

415 

38.7 

550 

39.0 

555 

58.0 

825 

58.3 

830 

454 

850 

4.4 

65 

4.6 

65 

19.0 

270 

28.5 

405 

25.0 

355 

38.0 

540 

37.6 

535 

56.9 

810 

468 

875 

3.9 

55 

3.9 

55 

15.5 

220 

28.1 

400 

20.4 

290 

37.3 

530 

30.9 

440 

56.2 

800 

482 

900 

3.5 

50 

3.5 

50 

12.0 

170 

27.8 

395 

16.2 

230 

36.9 

525 

24.3 

345 

55.5 

790 

496 

925 

2.8 

40 

2.8 

40 

9.5 

135 

27.4 

390 

13.0 

185 

36.6 

520 

19.3 

275 

54.8 

780 

510 

950 

2.5 

35 

2.5 

35 

7.4 

105 

27.1 

385 

9.8 

140 

36.2 

515 

14.4 

205 

54.5 

775 

524 

975 

1.8 

25 

1.8 

25 

5.3 

75 

26.4 

375 

7.4 

105 

35.2 

500 

10.9 

155 

52.7 

750 

538 

1000 

1.4 

20 

1.4 

20 

3.5 

50 

25.7 

365 

4.9 

70 

34.1 

485 

7.4 

105 

51.0 

725 

Hydrostatic Shell Test 

31.6 

450 

29.9 

425 

79.1 

1125 

77.3 

1100 

105.5 

1500 

101.9 

1450 

156.4 

2225 

152.9 

2175 

Series 900 Series 1500 Series 2500 

C 

F 

Steel 316SS Steel 316SS Steel 316SS 

Bar psi Bar psi Bar psi Bar psi Bar psi Bar psi 

-29 TO 38 

-20 TO 100 

156.1 2220 

151.8 2160 

260.5 3705 

253.1 3600 

433.8 6170 

421.8 6000 

66 

150 

148.0 2120 

141.3 2010 

248.9 3540 

235.2 3345 

414.4 5895 

392.3 5580 

93 

200 

142.4 2025 

130.8 1860 

237.3 3375 

217.6 3095 

395.4 5625 

362.7 5160 

121 

250 

140.2 1995 

124.4 1770 

233.7 3325 

207.0 2945 

389.8 5545 

345.2 4910 

149 

300 

138.5 1970 

118.1 1680 

230.6 3280 

196.5 2795 

384.5 5470 

327.6 4660 

177 

350 

136.0 1935 

113.2 1610 

226.7 3225 

188.4 2680 

377.9 5375 

314.2 4470 

204 

400 

133.6 1900 

108.3 1540 

222.9 3170 

180.7 2570 

371.2 5280 

300.9 4280 

232 

450 

129.7 182.5 

104.4 1485 

216.5 3080 

174.3 2480 

361.0 5135 

290.3 4130 

260 

500 

126.2 1795 

100.9 1435 

210.5 2995 

168.0 2390 

350.8 4990 

279.8 3980 

288 

550 

120.6 1715 

98.1 1395 

201.4 2865 

163.1 2320 

346.2 4925 

272.1 3870 

316 

600 

115.3 1640 

95.3 1355 

192.3 2735 

158.5 2255 

320.6 4560 

264.3 3760 

343 

650 

113.2 1610 

93.5 1330 

188.8 2685 

156.1 2220 

314.6 4475 

260.1 3700 

371 

700 

112.5 1600 

91.0 1295 

187.3 2665 

151.8 2160 

312.1 4440 

253.1 3600 

399 

750 

106.2 1510 

89.3 1270 

177.2 2520 

148.3 2110 

295.3 4200 

247.5 3520 

427\4545 

800 

86.8 1235 

87.5 1245 

144.8 2060 

145.9 2075 

241.1 3430 

243.2 3460 

468 

850 

56.6 805 

85.4 1215 

94.2 1340 

142.7 2030 

156.8 2230 

233.4 3320 

482 

875 

46.4 660 

84.0 1195 

77.3 1100 

140.6 2000 

128.6 1830 

232.0 3300 

496 

800 

36.2 515 

83.0 1180 

60.5 860 

138.5 1970 

100.5 1430 

230.6 3280 

510 

900 

28.8 410 

82.3 1170 

48.2 685 

137.1 1950 

80.5 1145 

228.5 3250 

524 

bilang 925 

21.8 310 

81.5 1160 

36.2 515 

135.7 1930 

60.5 860 

226.4 3220 

538 

459 

16.2 230 

79.1 1125 

27.1 285 

131.8 1875 

45.3 645 

219.7 3125 

10000 

10.9 155 

76.6 1090 

18.3 260 

127.9 1820 

30.2 430 

213.0 9030 

Hidrostatic Sheel Test 

235.5 3350 

228.5 3250 

391.9 5575 

379.6 5400 

652.0 9275 

632.7 9000 

18 


TM 

ALFA 

HOW TO ORDER ALFA TWIN PLATE CHECK VALVES 

SIZE 

FIG. No. 

08" A T 06 WF - WCB - R - A1 - T0 1 - XX 

Valve 

Style & 

Plate/ 

Pressure 

Body 

Valve Size Brand Identi - 

Connection - - Flapper - 

Rating 

Material 

fication 

Type 

Material 

Seating 

Surface 

Material 

- Spring Pin - 

Special 

Features 

DESCRIPTION : 8 In ALFA TWIN PLATE CHECK VALVE, ANSI CLASS 600, WAFER RAISED FACE DESIGN, BODY MATERIAL A216 Gr.WCB , PLATE 

MATERIAL 316 SS, BODY SEAT SEALING FACE MATERIAL BUNA-N, SPRING INCONEL X-750, PIN 316 SS 

VALVE SIZE 

BRAND 

VALVE 



02 

2H 

03 

04 

06 

10 

12 

14 

48 

~ 

54 

2" 

2-1/2" 

3" 

4" 

6" 

10" 

12" 

14" 

48" 

~ 

54" 

ALFA 

T : 

TWIN PLATE 

CHECK 

CODE 

0Q 

01 

03 

06 

09 

15 

25 

ANSI 

CONNECTION 

CLASS 125 

CLASS 150 

CLASS 300 

CLASS 600 

CLASS 900 

CLASS 1500 

CLASS 2500 

CODE 

P06 

P10 

P16 

P25 

P40 

P64 

P1H 

P1S 

P2F 

P3T 

DIN 

CONNECTION 

PN 6 

PN 10 

PN 16 

PN 25 

PN 40 

PN 64 

PN 100 

PN 160 

PN 250 

PN 320 

JIS 

CODE CON. 

J1 JIS 10K 

J2 JIS 20K 

J4 JIS 40K 

STYLE & CONNECTION TYPE 

BODY AND PLATE MATERIALS 

CODE 

WP 

WF 

WR 

LSP 

LDF 

LDR 

LTF 

LTR 

SBP 

SDF 

SDR 

STF 

B62 A BRONZE 

ASTM B62 Gr. C83600 CF8 P 

B14 B ALUMINIUM BRONZE ASTM B148 Gr. C95200 CF3 Q 

CI1 C CAST IRON ASTM A126 Gr. B CF8M R 

DI3 D DUCTILE IRON ASTM A395 

CF3M S 

DI4 E DUCTILE IRON ASTM A439 

CG8M T 

DI5 F DUCTILE IRON ASTM A536 

CF8C U 

WCB G CARBON STEEL ASTM A216 Gr. WCB CN7M V 

WCC H CARBON STEEL ASTM A216 Gr. WCC CD3MN W 

LCB I LOW TEMP. STEEL ASTM A352 Gr. LCB CD3MW X 

STR Lug Scalloped Body Threaded RTJ LCC J LOW TEMP. STEEL ASTM A352 Gr. LCC MO Y 

P 

F 

R 

W 

"N" 

STANDARD DESIGN 

Wafer Flat Face 

Wafer Raised Face 

Lug Solid Body Flat Face 

Lug Scalloped Body Drilled RTJ 

Lug Scalloped Body Threaded RF 

Flange Flat Face 

Flange Raised Face 

Flange RTJ 

CONNECTION 

Wafer Ring Tap Joint 

Lug Solid Body Drilled RF 

Lug Solid Body Drilled RTJ 

Lug Solid Body Threaded RF 

Lug Solid Body Threaded RTJ 

Lug Scalloped Body Flat Face 

Lug Scalloped Body Drilled RF 

Butt Weld (specify pipe schedule) 

RETAINERLESS DESIGN 

Add suffix "N" in Standard Design Code 

for RETAINERLESS Wafer Style 

BODY 

CODE 

PLATE 

MATERIAL 

SPECIFICATION 

BODY 

CODE 

PLATE 

WC6 K ALLOY STEEL ASTM A217 Gr. WC6 NI Z 

WC9 L ALLOY STEEL ASTM A217 Gr. WC9 INC AA 

C5 M ALLOY STEEL ASTM A217 Gr. C5 HAC BB 

C12 N ALLOY STEEL ASTM A217 Gr. C12 TIN CC 

CA15 O 410 STAINLESS ST. ASTM A217 Gr. CA15 SP SP 

MATERIAL 

304 STAINLESS ST. 

304 LOW CARBON SS 


316 LOW CARBON SS 



ALLOY 20 SS 

DUPLEX STAINLESS ST. 

SUPER DUPLEX SS 

MONEL 

NICKEL 

NICKEL ALLOY (INCONEL) 

HASTELLOY C276 

TITANIUM 

SPECIAL PER P.O. 

SPECIFICATION 





ASTM A351 Gr. CG8M 



ASTM A890 Gr. CD3MN 

ASTM A890 Gr.CD3MWCuN 

ASTM A494 Gr.M-35 

ASTM A494 Gr.CZ-100 

ASTM A494 Gr.CW-6MC 

ASTM A494 Gr.CW12MW 

ASTM B367 Gr.2 

On Request 

VALVE SEATING SURFACES 

SPRINGS & PINS 

BODY SEAT SEALING FACE 

PLATE SEAT ONLY 

BODY AND PLATE SEAT 

CODE 

MATERIAL CODE MATERIAL CODE MATERIAL 

AA Same as Body DA Same as Body 

A0 EPDM D0 EPDM 

A1 Buna-N D1 Buna-N 

LA Bronze 

A2 

Neoprene 

D2 Neoprene L1 410 SS 

A3 

Viton D3 Viton 

L2 316 SS 

A4 TFE D4 

TFE 

L3 317 SS 

A5 Silicone D5 

Silicone 

L4 Stellite 

A6 410 SS D6 410 SS 

L5 

Monel 

A7 316 SS D7 316 SS 

L6 Hastelloy C 

A8 317 SS D8 317 SS LX Special per P.O 

A9 Stellite D9 Stellite 

AM Monel DM Monel 

AX Special per P.O DX Special per P.O 

CODE 

SPINGS PINS 

T0 0 

T1 1 

T2 2 

T3 3 

T4 4 

T5 5 

T6 6 

T7 7 

T8 8 

T9 9 

TX 9 

MATERIAL 

MAXIMUM TEMP. 

ÿ F ÿ C 

INCONEL X-750 1000 537 

316 SS 

250 121 

410 SS 

250 121 

317 SS 250 121 

ALLOY 20 250 121 

17-4 PH 250 121 

MONEL 400 204 

HASTELLOY 800 426 

INCONEL 600 600 315 

INCONNEL 625 1000 537 

SPECIAL PER P.O - - 

19 


TM 

ALFA 

20

Valves Catalogue

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