Purge Valves FITOK EN

Purge Valves B-161
Purge Valves
RP Series
Bleed Valves
Purge Valves
Schalcher Engineering GmbH
Städeliweg 7 | 9220 Bischofszell
Tel.: +41 71 950 12 77 | E-Mail: info@schalcher-engineering.ch
www.schalcher-engineering.ch | www.fitok.ch

B-162 Purge Valves
Purge Valves
RP Series
Introduction
Purge valves are manual bleed, vent or drain valves. The knurled cap is permanently assembled to the valve body for safety.
One-quarter turn with a wrench from finger-tight obtains leaktight closure during initial installation. Tightening with a
wrench ensures closure to the rated pressure with subsequent installations.
Features
-65°F 600°F
Leak-tight performance testing with Nitrogen or compressed
air for every valve at the maximum working pressure to meet
the requirement of no visible leak.
Pressure vs. Temperature
Temperature ( °C)
Bleed Valves
Purge Valves
Pressure (psig)
-54 10 37 65 93 121 148 176 204 232 260 287 315
4500
310
4000
276
241
Steel Body
3000
207
172
2000
138
103
1000
69
34
0
0
-65 50 100 150 200 250 300 350 400 450 500 550 600
316 SS Body
Brass Body
Temperature ( ° F)
Pressure (bar)
Note: Ratings based on all metal seals. Ratings limited to:
■ -20°F (-28°C) min with steel.
■ 450°F (232°C) max with SAE end connections using
fluorocarbon FKM O-rings.
Standard Materials of Construction
Type L Type TL Type TA Type C
4
3
2
1
3
2
1
4
3
2
1
4
3
2
1
Component
1
2
Body
316 SS/A182
316 SS/A479
Material Grade/ASTM Specification
316 SS Brass Carbon Steel
Brass C36000/B16
Brass C37700/B283
Spring 302 SS/A313
12L4/A108
Chromium-plated
3
4
Poppeet (Ball)
Cap
316 SS/A479
316 SS/A479
Brass C36000/B16
12L4/A108
Chromium-plated
Note: Wetted components are listed in italics.
1. Lubricant: molybdenum disulfide-based and silicone-based.
2. Contact FITOK Group or our authorized distributors for other materials.

Purge Valves B-163
Dimensions
Type L
Type TL
A
Type TA
Type C
A
B
A
A
B
Caution:
B
1
B
B
5/8. - Hex
B
C - Hex
When installing a purge valve, position the
vent hole to direct system fluid away from
operating personnel. Always open purge
valves slowly. These valves contain no
packing, so some fluid weepage will occur
when thevalves are opened. Operating
personnel mustprotect themselves from
exposure to system fluids.
B
5/8. - Hex
B
C - Flat
1 2
2
1
5/8. - Hex
C - Flat
5/8. - Hex
C - Flat
1 2
3
Basic
Ordering
Number
RP□□-L
RP□□-TL
RP□□-TA
RP□□-C
-FL4
-FL6
-FL8
-ML6
-ML8
-ML10
-ML12
-FNS4
-FNS6
-FNS8
-NS4
-NS6
-NS8
-FL4
-FL6
-FL8
-ML6
-ML8
-ML10
-ML12
-FNS4
-FNS6
-FNS8
-NS4
-NS6
-NS8
Connection
Type and Size
1/4" FITOK
3/8" FITOK
1/2" FITOK
6 mm FITOK
8 mm FITOK
10 mm FITOK
12 mm FITOK
1/4 Female NPT
3/8 Female NPT
1/2 Female NPT
1/4 Male NPT
3/8 Male NPT
1/2 Male NPT
1/4" FITOK
3/8" FITOK
1/2" FITOK
6 mm FITOK
8 mm FITOK
10 mm FITOK
12 mm FITOK
1/4 Female NPT
3/8 Female NPT
1/2 Female NPT
1/4 Male NPT
3/8 Male NPT
1/2 Male NPT
Amax
1.96
(49.8)
2.05
(52.1)
2.20
(56.0)
1.96
(49.8)
2.02
(51.3)
2.10
(53.4)
2.20
(55.9)
1.76
(44.7)
1.83
(46.5)
2.02
(51.3)
1.84
(46.8)
1.89
(48.0)
2.11
(53.6)
1.41
(35.8)
1.49
(37.8)
1.61
(40.9)
1.41
(35.8)
1.48
(37.7)
1.52
(38.6)
1.60
(40.6)
1.66
(42.2)
1.75
(44.4)
1.75
(44.4)
1.54
(39.2)
1.68
(42.6)
1.75
(44.4)
Dimensions, in. (mm)
1. FITOK means FITOK double ferrule tube fittings.
2. Dimensions are shown with FITOK nuts finger - tightened. All dimensions are
for reference only and are subject to change.
3. Sizes and types listed are standard. Other sizes and types are available upon
request.
B
0.69
(17.5)
0.75
(19.1)
0.88
(22.4)
0.69
(17.5)
0.73
(18.6)
0.77
(19.6)
0.87
(22.0)
0.72
(18.3)
0.78
(19.8)
0.97
(24.6)
0.56
(14.2)
0.56
(14.2)
0.75
(19.1)
1.06
(26.9)
1.20
(30.5)
1.42
(36.1)
1.06
(27.0)
14.95
(29.9)
1.24
(31.6)
1.41
(36.0)
1.17
(29.7)
1.42
(36.1)
1.56
(39.6)
1.05
(26.7)
1.17
(29.7)
1.45
(36.8)
C
1/2
(12.7)
5/8
(15.9)
13/16
(20.6)
0.55
(14.0)
0.59
(15.0)
0.71
(18.0)
0.87
(22.0)
3/4
(19.1)
7/8
(22.2)
1 1/16
(26.9)
9/16
(14.3)
11/16
(17.5)
7/8
(22.2)
1/2
(12.7)
5/8
(15.9)
13/16
(20.6)
1/2
(12.7)
5/8
(15.9)
11/16
(17.5)
13/16
(20.6)
11/16
(17.5)
13/16
(20.6)
1
(25.4)
1/2
(12.7)
11/16
(17.5)
13/16
(20.6)
D
5/8
(15.9)
Bleed Valves
Purge Valves

B-164 Purge Valves
Bleed Valves
Purge Valves
Ordering Number Description
RPSS - C - FL8 - ML10 - FL8 - SF2
Series
Body
Material
Type
End Connection
1 Type
End Connection
1 Size
End
Connection
2 Type
End
Connection
2 Size
End
Connection
3 Type
End
Connection
3 Size
Special
Application
Cleaning and
Packaging
RP
SS
6L
S4
4L
S1
B
CS
316 SS
316L SS
304 SS
304L SS
321 SS
Brass
Carbon
Steel
904L 904L SS
L
TL
TA
C
Straight
In-line Tee
Angle Tee
Cross
FNS Female NPT
NS Male NPT
FRT Female BSPT
RT Male BSPT
Female Metric
FMS Thread
(for RP-M)
MS
FRP
BP
FL
ML
Male Metric
Thread
(for RG -M )
Female BSPP
(for RP)
Male BSPP
(for RG)
Fractional Tube
Fitting
Metric Tube
Fitting
2 1/8"
4 1/4"
6 3/8" or 6 mm
8 1/ 2" or 8 mm
10 10 mm
12 3/4" or 12 mm
14 mm or
14
M14 x 1.5
16
1" or 16 mm
Same as connection 1
Specified in the same way as
the end connection 1
Same as connection 1
Specified in the same way as
the end connection 1
Note: "Ordering Number Description" is a reference to understand the combination
rules of FITOK product part number. Not all combinations are available.
S
NO
NACE
MR0175
F2
FC-01
FC-02
1. Standard thread pitch for metric threads are as follows:
M10 and below: 1 mm
M12 to M24: 1.5 mm
M27 and above: 2 mm
Standard thread pitch should be omitted in the ordering number, others should be specified.
2. Cleaning and Packaging:
FC-01: Standard cleaning and packaging for general industrial procedures.
FC-02: Special cleaning and packaging for wetted system components to ensure compliance with
product cleanliness requirement of ASTM G93 Level C.