global-catalog-final - Universal: Acoustic Silencers

Universal 

Full-Line Exhaust Catalog 

Absorptive Silencers 

Combination Silencers 

Reactive Silencers 

Spark Arrestors Only 

Spark Arrestor Silencers

Table 

of Contents 

3 4 5 6 7 

2 

Table of Contents 

Full-Line Exhaust Catalog 

General Information 1.1 

Absorptive Silencers 2.1 

ADS Series 

1 

Combination Silencers 3.1 

BSE Series 

DSA and DDA Series 

Reactive Silencers 4.1 

OPS Series 

Spark Arrestors Only 5.1 

SPA Series 

See back cover for ordering information | www.universalAET.com 

Spark Arrestor Silencers 6.1 

OPA Series 

BSA Series 

EES Series 

Other Information 7.1 

BS10 Type D Flange Dimensions 

BS10 Type A Flange Dimensions 

DIN Flange Dimensions 

Plain Welded Flanges 

JIS Flange Dimensions 

ANSI B16.5 150# Flange Dimensions 

Steel Pipe Dimensions 

Wire Gauge Conversion Chart 

Note 

All dimensions in mm and weights 

in Kg, unless otherwise indicated.

1.1 

General 

Information 

General 

Information 

Company Profile 

Innovation, design and manufacturing 

expertise provide the solid foundation of our 

reputation in the specialist field of exhaust, 

emission and filtration systems at Universal, 

formerly Universal Silencer and 

Nelson-Burgess. 

For more than 50 years our name has been 

synonymous with quality and innovation of 

design achieved through partnerships with 

our customers. 

Our product range of industrial and marine 

silencers, mufflers and filtration products 

have been internationally recognized for 

offering the highest standard of quality, 

reliability, and performance. Our insight and 

expertise justify our reputation as the leader 

in exhaust and filtration systems. 

We take pride in providing a total value 

package of the most technologically 

advanced products and innovative services 

in the industry. Working hand in hand with 

our customers, we tailor solutions to specific 

applications. 

In this rapidly changing world, our advanced 

design and development testing facilities will 

help our customers meet the environmental 

challenges of the 21st century and beyond. 

Silencer Sizing 

You must know the following information: 

A exhaust flow rate (m 3 /sec) 

B silencer inlet size (mm 2 ) 

C level of silencing required 

Calculate exhaust gas velocity by dividing 

the flow rate by the pipe area: 

Reference the pressure drop curve in the 

silencer spec sheets. Using the calculated 

exhaust gas velocity, find the corresponding 

estimated pressure drop on the curve. If you 

have selected a silencer that achieves your 

silencing level requirements at an acceptable 

pressure drop level, you have identified the 

silencer that is right for you! 

Selection Assistance 

If you need help with selecting and sizing 

your silencer, please contact your nearest 

Universal commercial office (see back cover of 

catalog). Please also visit our interactive sizing 

application software on our website: 

www.universalaet.com. The software also 

has some current engine manufacturer 

performance data from which to select. 

Dimensional drawings for most silencers are 

also available for download on the website. 

Notes 

exhaust flow rate (m 3 /sec) 

silencer inlet pipe area (m 2 ) 

Keep in mind that silencers are not designed 

to support their weight from the inlet or outlet 

tube, or support other components of the 

exhaust system, such as stacks. For the most 

efficient operation of all silencing units, proper 

mounting attachments are required. Domed 

heads or flat plates with gussets vary by model 

and size. 

1 2 3 4 5 6 7 

See back cover for ordering information | www.universalaet.com

2.1 

ADS Series 

Absorptive 

Silencers 

Universal’s ADS silencers are recommended 

for the silencing of internal combustion 

engine exhaust and air vacuum 

discharges. They are available in two 

attenuation ratings: 

ADS 25 = 25 dB(A), ADS 35 = 35 dB(A). 

They utilise the original “straight through” 

absorptive principle, with exhaust pulse 

noise being effectively dissipated by 

absorptive material. This design provides 

very low restriction to exhaust gases, thus 

back pressure is negligible. Silencers of this 

type may also be used as secondary units on 

systems using reactive primary silencers. 

Pressure Drop mmWg 

Attenuation dB 

450 

400 

300°C 

350°C 

350 

400°C 

450°C 

300 

500°C 

550°C 

250 

200 

150 

100 

50 

0 

20 25 30 35 40 45 50 55 60 65 70 

Velocity m/sec 

50 

45 

40 

35 

30 

25 

20 

15 

10 

5 

0 

31.5 63 125 250 500 1000 2000 4000 8000 

Octave Band Centre Frequency 

Actual performance data may vary. 

ADS 35 

ADS 25 

ADS25 

Attenuation Level 25 dB(A) 35 dB(A) 


ADS35 

Orientation Horizontal or vertical Horizontal or vertical 

Standard Flange 90 mm–500 mm bore = BS 10 90 mm–500 mm bore = BS 10 

Optional Flanges ANSI, JIS, DIN and others ANSI, JIS, DIN and others 

Pipe Threads 

25 mm–75 mm bore - BSP 

external threaded 

25 mm–75 mm bore - BSP 


Finish Heat resistant paint Heat resistant paint 

Optional Finishes 

Standard Material 

Optional Material 

Optional Assemblies 

Shot Blast Metal Spray to 

BS 2569 Part 2 Class D (1965) 

plus two coats of silicon seal 

BSEN 10025 S275 or equivalent 

to 3 mm and above 

• Cor-Ten 

• Boiler Plate P265GH 

• Aluminised Steel 

• Stainless Steel Grades 304L, 

316 and 409 

• Rain cap 

• Elbows 

• Tailpipes 

• Lagging and Cladding 

• Mating flange assemblies 

• Lifting lugs 

• Support feet (horizontal and 

vertical) 

• Inspection doors 

• Explosion relief doors 




BSEN 10025 S275 or equivalent 

to 3 mm and above 

• Cor-Ten 




316 and 409 

• Rain cap 

• Elbows 

• Tailpipes 





vertical) 



1 2 3 4 5 6 7 


“BS10” Mounting Flange: 

Bore sizes 3.5" (90) and above. 

“B” Male Pipe Threads: 

BSP end offered in sizes 3" (75) 

and smaller. 

All information correct at time of printing. Universal has a policy of continuous 

improvement. Therefore we reserve the right to change the specifications of these 

silencers without notice.

2.2 

Absorptive 


ADS 25 Series 

1 2 3 4 5 6 7 


End Entry, End Exit 

Side Entry, End Exit 

Part Number Configuration Bore Size A B C D K L Weight 

50-1A025-AA End Entry, End Exit 25 (1.0") 89 380 20 -- -- 1.6 


50-1A050-AA End Entry, End Exit 50 (2.0") 115 765 35 -- -- 3 



50-3A090-AA Side Entry, End Exit 90 (3.5") 259 740 50 690 180 16.4 


50-3A100-AA Side Entry, End Exit 100 (4.0") 259 800 50 745 180 23 
























All dimensions are in mm unless otherwise stated. All weights are in Kg and are approximate. 

Typical tolerances (mm): up to 300 ± 3; 300–900 ± 5; 900–3000 ± 9; over 3000 ± 12 




2.3 

ADS 35 Series 

Absorptive 



1 2 3 4 5 6 7 




50-3Q090-AA Side Entry, End Exit 90 (3.5") 259 920 50 870 180 19.5 

50-1Q090-AA End Entry, End Exit 90 (3.5") 259 920 50 -- -- 19.5 





50-3Q150-AA Side Entry, End Exit 150 (6.0") 356 1400 75 1350 255 52 

50-1Q150-AA End Entry, End Exit 150 (6.0") 356 1400 75 -- -- 52 

























3.1 

BSE Series 

Combination 


Universal recommends the BSE silencer for 

optimum silencing applications. The unit is 

designed with a reactive chamber and an 

absorptive chamber to treat low and high 

frequencies. The BSE range is available in 

three attenuation ratings: BSE 25 = 25 dB(A), 

BSE 35 = 35 dB(A) and BSE 45 = 

45 dB(A). 



400 

300°C 

400 

350°C 

400°C 

350 

450°C 

500°C 

300 

550°C 

250 

200 

150 

100 

50 

0 

20 25 30 35 40 45 50 55 60 65 70 


50 

45 

40 

35 

30 

25 

20 

15 

10 

5 

0 

31.5 63 125 250 500 1000 2000 4000 8000 




Bore sizes 10" (250 mm) and above 

BSE 45 

BSE 35 

BSE 25 

Attenuation 

Level 


BSE 25 BSE 35 BSE 45 

25 dB(A) 35 dB(A) 45 dB(A) 

Orientation Horizontal or vertical Horizontal or vertical Horizontal or vertical 

Standard Flange 

Optional 

Flanges 

250 mm–750 mm 

bore = BS 10 

250 mm–750 mm 

bore = BS 10 

ANSI, JIS, DIN and others ANSI, JIS, DIN and others 

250 mm–750 mm 

bore = BS 10 

ANSI, JIS, DIN and others 

Pipe Threads Not applicable Not applicable Not applicable 

Finish Heat resistant paint Heat resistant paint Heat resistant paint 

Optional 

Finishes 

Standard 

Material 

Optional 

Material 

Optional 

Assemblies 


BS 2569 Part 2 Class D 

(1965) plus two coats of 

silicon seal 

BSEN 10025 S275 

or equivalent, 3 mm 

and above 

• Cor-Ten 



• Stainless Steel Grades 

304L, 316 and 409 

• Rain cap 

• Elbows 

• Tailpipes 

• Lagging and cladding 




silicon seal 

BSEN 10025 S275 


and above 

• Cor-Ten 




304L, 316 and 409 




silicon seal 

BSEN 10025 S275 


and above 

• Cor-Ten 




304L, 316 and 409 

• Mating flange assemblies • Mating flange assemblies • Mating flange assemblies 


• Support feet (horizontal 

and vertical) 



• Rain cap 

• Elbows 

• Tailpipes 




and vertical) 



• Rain cap 

• Elbows 

• Tailpipes 




and vertical) 



1 2 3 4 5 6 7 





3.2 

Combination 


BSE 25 Series 

1 2 3 4 5 6 7 




Part Number Configuration Bore Size A B C D K max K min L Weight 

50-3H250-AA Side Entry, End Exit 250 (10.0") 667 1500 75 1315 1315 410 159 

50-1H250-AA End Entry, End Exit 250 (10.0") 667 1500 75 -- -- -- 159 


























3.3 

BSE 35 Series 


Combination 


1 2 3 4 5 6 7 




50-3G250-AA Side Entry, End Exit 250 (10.0") 667 2000 75 1815 1815 410 189 

50-1G250-AA End Entry, End Exit 250 (10.0") 667 2000 75 -- -- -- 189 























Typical tolerances (mm): up to 300 ± 3; 300–900 ± 5; 900–3000 ± 9, over 3000 ± 12 




3.4 

Combination 


BSE 45 Series 

1 2 3 4 5 6 7 





50-3F250-AA Side Entry, End Exit 250 (10.0") 667 2650 75 2465 2465 410 242 

50-1F250-AA End Entry, End Exit 250 (10.0") 667 2650 75 -- -- -- 242 


























3.5 

DSA and DDA Series 

Combination 


Universal’s DSA and DDA silencers are 

recommended for small and medium sized 

diesel and petrol engines. They employ a 

twin or triple chamber design where an initial 

low restriction expansion and diffusion of 

the exhaust gases takes place in a primary 

reactive chamber. Attenuation of the higher 

frequencies is obtained in the secondary 

absorptive section. The DSA provides 

25 dB(A) attenuation and the DDA 

provides 30 dB(A) attenuation. 



450 

400 

300°C 

350°C 

350 

400°C 

450°C 

300 

500°C 

550°C 

250 

200 

150 

100 

50 

0 

20 25 30 35 40 45 50 55 60 65 70 


45 

40 

35 

30 

25 

20 

15 

10 

5 

0 

31.5 63 125 250 500 1000 2000 4000 8000 



DDA 

DSA 

DSA 



DDA 




Pipe Threads 

25 mm–75 mm bore = BSP 


25 mm–75 mm bore = BSP 










BSEN 10025 S275 or equivalent, 

3 mm and above 

• Cor-Ten 




316 and 409 

• Rain cap 

• Elbows 

• Tailpipes 





and vertical) 








• Cor-Ten 




316 and 409 

• Rain cap 

• Elbows 

• Tailpipes 





vertical) 



1 2 3 4 5 6 7 




“B” Male Pipe Threads: 

BSP end offered in sizes 3" (75) 

and smaller. 




3.6 

Combination 


DSA Series 

1 2 3 4 5 6 7 



Part Number Configuration Bore Size A B C D E F G Weight 

50-1C025-AA End Entry, End Exit 25 (1") 89 255 45 7 13 15 1 

50-1C038-AA End Entry, End Exit 38 (1.5") 115 380 50 12 21 24 3 













Typical tolerances (mm): up to 300 ± 3; 300–900 ± 5; 900–3000 ± 9 




3.7 

DDA Series 


Combination 


1 2 3 4 5 6 7 



Part Number Configuration Bore Size A B C D E F G K L Weight 

50-1B025-AA End Entry, End Exit 25 (1") 89 380 16 7 13 15 -- -- 2 

50-1B038-AA End Entry, End Exit 38 (1.5") 115 560 30 12 21 24 -- -- 4 




50-3B090-AA Side Entry, End Exit 90 (3.5") 259 1015 75 25 45 51 1015 205 27 


50-3B100-AA Side Entry, End Exit 100 (4") 285 1220 75 30 52 60 1155 215 37 




















4.1 

OPS Series 

Reactive 




Universal’s OPS reactive silencers are 

recommended for industrial and marine 

applications where low frequency noise 

dominates. The design consists of a series of 

expansion chambers having interconnecting 

tubes. The OPS range is available in two 

attenuation ratings: OPS 25 = 25 dB(A) and 

OPS 30 = 30 dB(A). 

Universal OPS range of silencers can be 

used in conjunction with other Universal 

silencers to produce the optimum 

acoustic system. 

1000 

250°C 

900 

300°C 

800 

350°C 

400°C 

700 

450°C 

500°C 

600 

500 

400 

300 

200 

100 

0 

20 25 30 35 40 45 50 55 60 65 70 75 

35 

30 

25 

20 

15 

10 

5 

Reactive OPS 

0 

31.5 63 125 250 500 1000 2000 4000 8000 

OPS 30 

OPS 25 


OPS 25 OPS 30 





Pipe Threads Not applicable Not applicable 











• Cor-Ten 




316 and 409 

• Rain cap 

• Elbows 

• Tailpipes 





and vertical) 








• Cor-Ten 




316 and 409 

• Rain cap 

• Elbows 

• Tailpipes 





and vertical) 



1 2 3 4 5 6 7 









4.2 

Reactive 


OPS 25 Series 

1 2 3 4 5 6 7 





50-3T090-AA Side Entry, End Exit 90 (3.5") 303 815 50 770 476 205 31 

50-1T090-AA End Entry, End Exit 90 (3.5") 303 815 50 -- -- 205 31 



















Continued on next page 


Typical tolerances (mm): up to 300 ± 3; 300–900 ± 5; 900–3000 ± 9; 3000–9000 ± 12 




4.3 

OPS 25 Series (continued) 


Reactive 


1 2 3 4 5 6 7 


































4.4 

Reactive 


1 2 3 4 5 6 7 

OPS 30 Series 





50-3D090-AA Side Entry, End Exit 90 (3.5") 303 1065 50 1020 726 205 36 

50-1D090-AA End Entry, End Exit 90 (3.5") 303 1065 50 -- -- 205 36 



























4.5 

OPS 30 Series (continued) 


Reactive 


1 2 3 4 5 6 7 
































5.1 

SPA Series 


Universal’s SPA spark arrestors are 

recommended for use in hazardous areas 

where fire precautions prevail. The unique 

design allows dangerous sparks to be 

removed from the exhaust gas as well as 

providing up to 20 dB(A) attenuation. The 

hot carbon particles are trapped safely 

within the arrestor dustbox for removal later. 

Universal’s Spark Arrestors can be installed 

either horizontally or vertically. Efficiency 

in either position is expected to exceed 

95% at rated flow. The spark arrestor can 

be used in isolation or in conjuction with 

other Universal models to produce an ideal 

solution for many noise problems. 



450 

400 

300°C 

350°C 

350 

400°C 

450°C 

300 

500°C 

550°C 

250 

200 

150 

100 

50 

0 

20 25 30 35 40 45 50 55 60 65 70 


25 

20 

15 

10 

SPA 

Attenuation Level 

Orientation 

20 dB(A) 

Horizontal or vertical 

Standard Flange 90 mm–950 mm bore = BS 10 

Optional Flanges 

Pipe Threads 

Dust Box 

Finish 





ANSI, JIS, DIN and others 

Not applicable 

SPA 

90 mm to 250 mm bore sizes have an internal dust box 

Heat resistant paint 


Shot Blast Metal Spray to BS 2569 Part 2 Class D (1965) plus two 

coats of silicon seal 

BSEN 10025 S275 or equivalent, 3 mm and above 

• Cor-Ten 



• Stainless Steel Grades 304L, 316 and 409 

• Rain cap 

• Elbows 

• Tailpipes 




• Support feet (Horizontal and Vertical) 



1 2 3 4 5 6 7 


5 

31.5 63 125 250 500 1000 2000 4000 8000 


Actual performance data may differ according to engine 

specification, installation and bore size. 



Universal’s Spark Arrestors are approved 

for areas where emissions of exhaust gases 

are permitted on-board ships and mobile 

offshore units classed by: 

Type: Det Norske Veritas 

Cert Number: M-10407 




5.2 


SPA Series 

1 2 3 4 5 6 7 










Part Number Configuration Bore Size A B C D K max K min L G H J Weight 

50-3N090-AA Side Entry, End Exit 90 (3.5") 303 340 50 285 -- 205 -- -- -- 31 

50-1N090-AA End Entry, End Exit 90 (3.5") 303 340 50 -- -- -- -- -- -- 31 















50-3N300-AA Side Entry, End Exit 300 (12.0") 740 1050 100 910 -- 470 300 300 490 290 

50-1N300-AA End Entry, End Exit 300 (12.0") 740 1050 100 -- -- -- 300 300 490 290 

50-3N350-AA Side Entry, End Exit 350 (14.0") 840 1250 100 1070 1030 520 350 300 545 328 










5.3 

SPA Series (continued) 



1 2 3 4 5 6 7 









Part Number Configuration Bore Size A B C D K max K min L G H J Weight 





























6.1 

OPA Series 

Spark Arrestor 



Universal’s OPA range of spark arresting 

reactive silencers are recommended for 

industrial and marine applications where 

low frequency noise dominates. They are 

available in two attenuation ratings: OPA 25 

- 25dB(A) and OPA 30 - 30dB(A). The OPA 

range of spark arrestor silencers can be used 

in conjunction with other Universal silencers 

to produce the optimum acoustic solution. 

1000 

900 


300°C 

800 

350°C 

400°C 

700 

450°C 

500°C 

600 

500 

400 

300 

200 

100 

0 

20 25 30 35 40 45 50 55 60 65 70 75 


35 

30 

25 

20 

15 

10 

5 

0 

31.5 63 125 250 500 1000 2000 4000 8000 



250°C 

OPA 30 

OPA 25 

Spark Arrestor Silencers 

OPA 25 OPA 30 






Dust Box 

250 mm normal bore and under 

are fitted with internal dust boxes 

250 mm normal bore and under 

are fitted with internal dust boxes 











• Cor-Ten 




316 and 409 

• Rain cap 

• Elbows 

• Tailpipes 




• Support feet (Horizontal and 

Vertical) 








• Cor-Ten 




316 and 409 

• Rain cap 

• Elbows 

• Tailpipes 




• Support feet (Horizontal and 

Vertical) 



1 2 3 4 5 6 7 













6.2 



OPA 25 Series 

1 2 3 4 5 6 7 










Part Number Configuration Bore Size A B C D K L N G H J Weight 

50-1E090-AA End Entry, End Exit 90 (3.5") 303 710 50 -- -- -- -- -- -- 40 

50-3E090-AA Side Entry, End Exit 90 (3.5") 303 710 50 665 205 -- -- -- -- 40 















50-1E300-AA End Entry, End Exit 300 (12.0") 740 1905 100 -- -- 750 300 300 490 454 

50-3E300-AA Side Entry, End Exit 300 (12.0") 740 1905 100 1705 470 750 300 300 490 454 











6.3 

OPA 25 Series (continued) 




1 2 3 4 5 6 7 






































6.4 



OPA 30 Series 

1 2 3 4 5 6 7 











50-1V090-AA End Entry, End Exit 90 (3.5") 303 1065 50 -- -- -- -- -- -- 60 

50-3V090-AA Side Entry, End Exit 90 (3.5") 303 1120 50 1020 205 -- -- -- -- 60 















50-1V300-AA End Entry, End Exit 300 (12.0") 740 5975 100 -- -- 750 300 300 490 659 

50-3V300-AA Side Entry, End Exit 300 (12.0") 740 6500 100 2695 470 750 300 300 490 659 











6.5 

OPA 30 Series (continued) 




1 2 3 4 5 6 7 










50-1V450-AA End Entry, End Exit 450 (18.0") 990 100 -- -- 1150 450 300 625 1236 

50-3V450-AA Side Entry, End Exit 450 (18.0") 990 100 3630 595 1150 450 300 625 1236 



























6.6 



BSA Series 

1 2 3 4 5 6 7 


Universal’s BSA range of spark arresting 

combination reactive and absorptive 

silencers are recommended for industrial 

and marine applications where low frequency 

noise dominates. Universal recommends 

these silencers for optimum silencing 

applications. The BSA units are of a 

combination design with a primary reactive 

chamber and an absorptive secondary 

chamber. They are available in three 


BSA 25 = 25dB(A), BSA 35 = 35dB(A) and 

BSA 45 = 45 dB(A). 

BSA 25 BSA 35 BSA 45 

Attenuation Level 25 dB(A) 35 dB(A) 45 dB(A) 

Orientation Horizontal or vertical Horizontal or vertical Horizontal or vertical 


Optional Flanges 

250 mm–900 mm bore 

= BS 10 


= BS 10 


= BS 10 

ANSI, JIS, DIN and others ANSI, JIS, DIN and others ANSI, JIS, DIN and others 

Pipe Threads Not applicable Not applicable Not applicable 

The BSA range of spark arrestor silencers 

can be used in conjunction with other 

silencers to produce the optimum 

acoustic solution. 

Dust Box 

250 mm normal bore 

are fitted with internal 

dust boxes 



dust boxes 



dust boxes 

Finish Heat resistant paint Heat resistant paint Heat resistant paint 



400 

300°C 

400 

350°C 

400°C 

350 

450°C 

500°C 

300 

550°C 

250 

200 

150 

100 

50 

0 

20 25 30 35 40 45 50 55 60 65 70 


50 

45 

40 

35 

30 

25 

20 

15 

10 

5 

0 

31.5 63 125 250 500 1000 2000 4000 8000 




Bore sizes 10" (250) and above. 

BSA 45 

BSA 35 

BSA 25 




Optional 

Assemblies 




silicon seal 

BSEN 10025 S275 or 

equivalent, 3 mm 

and above 

• Cor-Ten 




304L, 316 and 409 

• Rain cap 

• Elbows 

• Tailpipes 


• Mating flange 

assemblies 



and vertical) 






silicon seal 

BSEN 10025 S275 or 


and above 

• Cor-Ten 




304L, 316 and 409 

• Rain cap 

• Elbows 

• Tailpipes 



assemblies 



and vertical) 






silicon seal 

BSEN 10025 S275 or 


and above 

• Cor-Ten 




304L, 316 and 409 

• Rain cap 

• Elbows 

• Tailpipes 



assemblies 



and vertical) 












6.7 

BSA 25 Series 












Part Number Configuration Bore Size A B C D K max K min L N G H J Weight 

50-3L250-AA Side Entry, End Exit 250 (10.0") 667 1500 75 1315 1315 410 - - - - 159 

50-1L250-AA End Entry, End Exit 250 (10.0") 667 1500 75 -- -- -- - - - - 159 

50-3L300-AA Side Entry, End Exit 300 (12.0") 740 1800 100 1660 1660 470 750 300 300 490 258 

50-1L300-AA End Entry, End Exit 300 (12.0") 740 1800 100 -- -- -- 750 300 300 490 258 

























1 2 3 4 5 6 7 







6.8 



BSA 35 Series 

1 2 3 4 5 6 7 











50-3K250-AA Side Entry, End Exit 250 (10.0") 667 2000 75 1815 1815 410 -- -- -- -- 189 

50-1K250-AA End Entry, End Exit 250 (10.0") 667 2000 75 -- -- -- -- -- -- -- 189 

50-3K300-AA Side Entry, End Exit 300 (12.0") 740 2400 100 2260 2260 470 750 300 300 490 312 

50-1K300-AA End Entry, End Exit 300 (12.0") 740 2400 100 -- -- -- 750 300 300 490 312 






























6.9 

BSA 45 Series 













50-3J250-AA Side Entry, End Exit 250 (10.0") 667 2650 75 2465 2465 410 -- -- -- -- 242 

50-1J250-AA End Entry, End Exit 250 (10.0") 667 2650 75 -- -- -- -- -- -- -- 242 

50-3J300-AA Side Entry, End Exit 300 (12.0") 740 3150 100 3010 3010 470 750 300 300 490 395 

50-1J300-AA End Entry, End Exit 300 (12.0") 740 3150 100 -- -- -- 750 300 300 490 395 

























1 2 3 4 5 6 7 







6.10 



EES Series 

1 2 3 4 5 6 7 


Universal’s EES spark arrestor silencers are 

developed for the high demand of marine 

applications. The unique design allows 

the dangerous sparks to be removed from 

the exhaust gas as well as providing noise 

attenuation. The hot carbon particles are 

trapped safely within the arrestor dustbox 

for removal later. Universal’s Spark Arrestors 

can be installed either horizontally or 

vertically. Efficiency in either position is 

expected to exceed 95% at rated flow. The 

spark arrestor can be used in isolation or 

in conjunction with other Universal models 

to produce an ideal solution to many noise 

problems. The EES series of spark 

arrestor silencers are available in two 


EES 25=25dB(A) and EES 35=35 dB(A). 


400 

300°C 

400 

350°C 

400°C 

350 

450°C 

500°C 

300 

550°C 

250 

200 

150 

100 

50 

0 

20 25 30 35 40 45 50 55 60 65 70 


EES 25 EES 35 





= BS 10 


= BS 10 



Dust Box 

250 mm normal bore and 

under models are fitted with 

internal dust boxes 

250 mm normal bore and 

under models are fitted with 

internal dust boxes 








silicon seal 

BSEN 10025 S275 or 

equivalent, 3 mm and above 

• Cor-Ten 




316 and 409 




silicon seal 

BSEN 10025 S275 or 

equivalent, 3 mm and above 

• Cor-Ten 




316 and 409 

40 


• Rain cap 

• Rain cap 


35 

30 

25 

20 

15 

10 

EES 35 

EES 25 

• Elbows 

• Tailpipes 



• Elbows 

• Tailpipes 



5 

0 

31.5 63 125 250 500 1000 2000 4000 8000 

Octave Band Centre Frequency, Hz 




vertical) 




vertical) 





Bore Sizes 4" (100) and above. 

Universal’s Spark Arrestors are approved for areas where 

emissions of exhaust gases are permitted on-board ships and 

mobile offshore units classed by: 

Type: Det Norske Veritas Cert Number: M-10407 




6.11 

EES 25 Series 




1 2 3 4 5 6 7 










50-3L100-MM Side Entry, End Exit 100 (4.0") 356 1400 50 1300 455 160 

50-1L100-MM End Entry, End Exit 100 (4.0") 356 1400 50 -- 455 160 











Typical tolerances (mm): up to and including 300 ± 3; 300–900 ± 5; 900–3,000 ± 9 




6.12 



EES 35 Series 

1 2 3 4 5 6 7 











50-3K100-MM Side Entry, End Exit 100 (4.0") 259 1400 50 1550 455 190 

50-1K100-MM End Entry, End Exit 100 (4.0") 259 1400 50 -- 455 190 










Typical tolerances (mm): up to and including 300 ± 3; 300–900 ± 5; 900–3000 ± 9 




7.1 

Other Information 


1. This specification applies to flanges with dimensions specified to be BS 10 Type D Flanges. 

2. BS10 Type D Flanges are standard on silencers with inlet sizes 3.5" (90) up to and 

including 22" (550). 

3. Shape and Dimensions: 

BS 10 Type D Flanges 

1 2 3 4 5 6 7 

Nominal Diameter of 

Flange 

Inside Diameter of 

Flange 

Outside Diameter of 

Flange 

Pitch Circle Diameter 

(PCD) 

Number of 

Bolt Holes 

Bolt Hole 

Hole 

Diameter 

Approximate 

Weight 

90 105 203 165.0 4 18 2.1 

100 117 216 178.0 4 18 2.3 

125 142 254 210.0 8 18 3.1 

150 171 279 235.0 8 18 3.4 

175 196 305 260.0 8 18 3.8 

200 222 337 292.0 8 18 4.6 

225 247 368 324.0 8 18 5.3 

250 275 406 356.0 8 22 6.3 

300 327 457 406.0 12 22 9.5 

350 359 527 470.0 12 26 13.9 

400 410 578 521.0 12 26 15.6 

450 460 641 584.0 12 26 18.9 

500 511 705 641.0 16 26 22.2 

550 563 762 699.0 16 26 31.2 






7.2 



1 2 3 4 5 6 7 

BS 10 Type A Flanges 

1. This specification applies to flanges with dimensions specified to be BS 10 Type A. 

2. BS10 Type A Flanges are standard on silencers with inlet sizes 24" (600) and above. 


Bolt Hole 


Flange 


Flange 


Flange 


(PCD) 

Number of 

Bolt Holes 

Hole 

Diameter 

Approximate 

Weight 

600 614 825 756.0 26 12 36.4 

650 664 844 781.0 26 16 32.1 

700 715 895 832.0 26 20 34.1 

750 766 946 883.0 26 20 36.3 

800 817 1003 940.0 26 20 40.1 

850 868 1054 991.0 26 20 42.4 

900 918 1105 1041.0 26 24 44.6 

950 968 1156 1092.0 26 24 47.2 

1000 1020 1206 1143.0 26 24 49.1 

1050 1070 1257 1194.0 26 28 51.3 

1100 1125 1314 1251.0 26 28 54.5 

1150 1175 1365 1302.0 26 28 57.2 

1200 1225 1416 1352.0 26 28 59.9 





7.3 



Flanges 

Connecting dimensions according to 

DIN EN 1092-1 and DIN 2501-1 

Flange connecting dimensions for 

PN 6, PN 10 and PN 16 

1 2 3 4 5 6 7 

Fig. 1 shows the schematic arrangement of 

the bolt holes, not their exact number. 

1) 

Flange connecting dimensions for PN 160, 

PN 250, and PN 320 correspond to the 

specifications in DIN 2501-1 

Connecting dimensions for PN 6, PN 10 and PN 16 

NOMINAl Size 

Outside 

Bolt 

Circle 

PN 6 PN 10 PN 16 

Bolt Holes Outside Bolt 

Circle 

Bolt Holes Outside Bolt 

Circle 

Ø Ø No. Ø Ø Ø No. Ø Ø Ø No. Ø 

D k n d 2 

D k n d 2 

D k n d 2 

Bolt Holes 


15 

20 

80 

90 

55 

65 

4 

4 

11 

11 

95 

105 

65 

75 

4 

4 

14 

14 

95 

105 

65 

75 

4 

4 

14 

14 

25 

32 

40 

100 

120 

130 

75 

90 

100 

4 

4 

4 

11 

14 

14 

115 

140 

150 

85 

100 

110 

4 

4 

4 

14 

18 

18 

115 

140 

150 

85 

100 

110 

4 

4 

4 

14 

18 

18 

50 

65 

80 

140 

160 

190 

110 

130 

150 

4 

4 

4 

14 

14 

18 

165 

185 

200 

125 

145 

160 

4 

8 

8 

18 

18 

18 

165 

185 

200 

125 

145 

160 

4 

8 1) 

8 

18 

18 

18 

100 

125 

150 

210 

240 

265 

170 

200 

225 

4 

8 

8 

18 

18 

18 

220 

250 

285 

180 

210 

240 

8 

8 

8 

18 

18 

22 

220 

250 

285 

180 

210 

240 

8 

8 

8 

18 

18 

22 

200 

250 

300 

320 

375 

440 

280 

335 

395 

8 

12 

12 

18 

18 

22 

340 

395 

445 

295 

350 

400 

8 

12 

12 

22 

22 

22 

340 

405 

460 

295 

355 

410 

12 

12 

12 

22 

26 

26 

350 

400 

490 

540 

445 

495 

12 

16 

22 

22 

505 

565 

460 

515 

16 

16 

22 

26 

520 

580 

470 

525 

16 

16 

26 

30 

1) 

According to EN 1092-2 (cast iron flanges) and EN 1092-3 (copper alloy flanges), flanges in this PN and DN may be delivered with 4 bolt 

holes. If steel flanges with 4 holes are required, they may be delivered after prior consultation between manufacturer and customer. 





7.4 



1 2 3 4 5 6 7 

Plain Welded Flanges 

Nominal Size Pipe Flange Screws Weight 

DN d 1 

d 5 

D b k Number Thread d 2 

(7.85 Kg/dm3) 

Kg/piece 

32–150 

see DIN 

86 009 

Use steel flanges with connection dimensions according to normal pressure PN 10 and PN 16. 

The shape of the flanges is discretionary. Possible examples are those according to DIN 2576 or DIN 86 030. 

Plain Welded Flange 

200 219.1 222 320 16 280 8 M16 18 5 

250 273 276 375 16 335 12 M16 18 6 

300 323.9 327 440 16 395 12 M20 22 8 

350 355.6 359 490 16 445 12 M20 22 10.4 

400 406.4 410 540 16 495 16 M20 22 11.4 

450 457 461 595 16 550 16 M20 22 13.2 

500 508 512 645 16 600 20 M20 22 14.2 

(550) 559 563 703 20 650 20 M20 22 20.7 

600 610 614 754 20 700 20 M20 22 22.4 

(650) 660 665 805 20 750 20 M20 22 24 

700 711 716 856 20 800 24 M20 22 25.7 

(750) 762 767 907 20 860 24 M20 22 27.5 

800 813 818 958 20 900 24 M20 22 29.2 

(850) 864 870 1010 20 950 28 M20 22 30.5 

900 914 920 1060 20 1010 28 M20 22 32.5 

(950) 964 970 1110 20 1060 28 M20 22 34.2 

Avoid numerical values in brackets if possible. The dimensional tolerances are in accordance with DIN 2519 (draft edition of January 1975). 





7.5 



1. This specification applies to flanges with dimensions specified in JIS B2211, 5 kg/cm 2 

in nominal pressure and used for connection with steel pipes delivering steam, air, gas, 

water, oil, etc. 

2. Relation between liquid condition and maximum pressure in use (Refer to JIS B2201). 

3. Material shall be SS41 specified in JIS G3101, SF40 specified in JIS G3201, or S20 

specified in JIS G4051, and shall be fit for welding. 

• Otherwise material shall have equal or superior quality to fill the product requirements 

and shall be fit for welding 

JIS 5 kg/cm 2 Slip-On Welding Steel Pipe Flanges 

1 2 3 4 5 6 7 



Flange 


Flange 


Flange 


(PCD) 

Number of 

Bolt Holes 

Bolt Hole 

Hole 

Diameter 

Approximate 

Weight 

25 34.6 95 75 4 12 0.45 

32 43.7 115 90 4 15 0.78 

40 49.1 120 95 4 15 0.83 

50 61.1 130 105 4 15 1.07 

65 77.1 155 130 4 15 1.49 

80 90 180 145 4 19 1.99 

(90) 102.6 190 155 4 19 2.09 

100 115.4 200 165 8 19 2.39 

125 141.2 235 200 8 19 3.23 

150 166.6 265 230 8 19 4.41 

(175) 192.1 300 260 8 23 5.51 

200 216 320 280 8 23 6.33 

(225) 243.7 345 305 12 23 6.54 

250 269.5 385 345 12 23 9.45 

300 321 430 390 12 23 10.3 

350 358.1 480 435 12 25 14 

400 409 540 495 16 25 16.9 

450 460 605 555 16 25 24.8 

500 511 655 605 20 25 26.9 

550 562 720 665 20 27 34.1 

600 613 770 715 20 27 37.5 

650 664 825 770 24 27 42.8 

700 715 875 820 24 27 45.4 

750 766 945 880 24 33 57.4 

800 817 995 930 24 33 60.8 

(850) 868 1045 980 24 33 63.5 

900 919 1095 1030 24 33 75.3 

1000 1021 1195 1130 28 33 88.5 






7.6 



1 2 3 4 5 6 7 

ANSI B16.5 150# Flanges 

1. This specification applies to flanges with dimensions specified to be ANSI B16.5 150# Flanges. 


Bolt Hole 


Flange 


Flange 


Flange 


(PCD) 

Number of 

Bolt Holes 

Hole 

Diameter 

Approximate 

Weight 

25 36 107.95 79.4 14 4 0.7 

40 51 127 98.4 14 4 0.9 

50 63 152.4 120.7 18 4 1.3 

65 79 177.8 139.7 18 4 1.8 

80 91 190.5 152.4 18 4 2.0 

90 105 215.9 177.8 18 8 2.4 

100 117 228.6 190.5 18 8 2.7 

125 142 254 215.9 22 8 3.0 

150 171 279.4 241.3 22 8 3.3 

200 222 342.9 298.5 22 8 4.8 

250 275 406.4 368.3 24 12 6.1 

300 327 482.6 431.8 24 12 11.7 

350 359 533.4 476.3 26 12 14.6 

400 410 596.9 539.8 26 16 17.5 

450 460 635 577.9 32 16 17.3 

500 511 698.5 635.0 32 20 20.4 

600 614 812.8 749.3 34 20 32.1 





7.7 



The chart is based on ASME/ANSI B 36.10 Welded and Seamless Wrought Steel Pipe and 

ASME/ANSI B36.19 Stainless Steel Pipe. 

Pipe Size 

(inches) 

Outside Diameter 

(inches) 

1/8 0.41 

1/4 0.54 

3/8 0.68 

1/2 0.84 

3/4 1.05 

1 1.32 

1 1/4 1.66 

1 1/2 1.9 

2 2.38 

Steel 

Identification 

Iron Pipe Size Schedule # 

Stainless Steel 

Schedule No. 

Dimensions of Steel Pipe 

Wall thickness 

-t- (inches) 

Inside diameter 

-d- (inches) 

. . 10S 0.05 0.31 

STD 40 40S 0.07 0.27 

XS 80 80S 0.1 0.22 

. . 10S 0.07 0.41 

STD 40 40S 0.09 0.36 

XS 80 80S 0.12 0.3 

. . 10S 0.07 0.55 

STD 40 40S 0.09 0.49 

XS 80 80S 0.13 0.42 

. . 5S 0.07 0.71 

. . 10S 0.08 0.67 

STD 40 40S 0.11 0.62 

XS 80 80S 0.15 0.55 

. 160 . 0.19 0.47 

XXS . . 0.29 0.25 

. . 5S 0.07 0.92 

. . 10S 0.08 0.88 

STD 40 40S 0.11 0.82 

XS 80 80S 0.15 0.74 

. 160 . 0.22 0.61 

XXS . . 0.31 0.43 

. . 5S 0.07 1.19 

. . 10S 0.11 1.1 

STD 40 40S 0.13 1.05 

XS 80 80S 0.18 0.96 

. 160 . 0.25 0.82 

XXS . . 0.36 0.6 

. . 5S 0.07 1.53 

. . 10S 0.11 1.44 

STD 40 40S 0.14 1.38 

XS 80 80S 0.19 1.28 

. 160 . 0.25 1.16 

XXS . . 0.38 0.9 

. . 5S 0.07 1.77 

. . 10S 0.11 1.68 

STD 40 40S 0.15 1.61 

XS 80 80S 0.2 1.5 

. 160 . 0.28 1.34 

XXS . . 0.4 1.1 

. . 5S 0.07 2.25 

. . 10S 0.11 2.16 

STD 40 40S 0.15 2.07 

XS 80 80S 0.22 1.94 

. 160 . 0.34 1.69 

XXS . . 0.44 1.5 

1 2 3 4 5 6 7 



Continued on next page

7.8 



1 2 3 4 5 6 7 


Pipe Size 

(inches) 


(inches) 

2 1/2 2.88 

3 3.5 

3 1/2 4 

4 4.5 

5 5.56 

6 6.63 

8 8.63 

Steel 




Schedule No. 


-t- (inches) 


-d- (inches) 

. . 5S 0.08 2.71 

. . 10S 0.12 2.64 

STD 40 40S 0.2 2.47 

XS 80 80S 0.28 2.32 

. 160 . 0.38 2.13 

XXS . . 0.55 1.77 

. . 5S 0.08 3.33 

. . 10S 0.12 3.26 

STD 40 40S 0.22 3.07 

XS 80 80S 0.3 2.9 

. 160 . 0.44 2.62 

XXS . . 0.6 2.3 

. . 5S 0.08 3.83 

. . 10S 0.12 3.76 

STD 40 40S 0.23 3.55 

XS 80 80S 0.32 3.36 

. . 5S 0.08 4.33 

. . 10S 0.12 4.26 

STD 40 40S 0.24 4.03 

XS 80 80S 0.34 3.83 

. 120 . 0.44 3.62 

. 160 . 0.53 3.44 

XXS . . 0.67 3.15 

. . 5S 0.11 5.35 

. . 10S 0.13 5.3 

STD 40 40S 0.26 5.05 

XS 80 80S 0.38 4.81 

. 120 . 0.5 4.56 

. 160 . 0.63 4.31 

XXS . . 0.75 4.06 

. . 5S 0.11 6.41 

. . 10S 0.13 6.36 

STD 40 40S 0.28 6.07 

XS 80 80S 0.43 5.76 

. 120 . 0.56 5.5 

. 160 . 0.72 5.19 

XXS . . 0.86 4.9 

. . 5S 0.11 8.41 

. . 10S 0.15 8.33 

. 20 . 0.25 8.13 

. 30 . 0.28 8.07 

STD 40 40S 0.32 7.98 

. 60 . 0.41 7.81 

XS 80 80S 0.5 7.63 

. 100 . 0.59 7.44 

. 120 . 0.72 7.19 

. 140 . 0.81 7 

XXS . . 0.88 6.88 

. 160 . 0.91 6.81 



7.9 



Pipe Size 

(inches) 


(inches) 

10 10.75 

12 12.75 

14 14 

16 16 

Steel 




Schedule No. 



-t- (inches) 


-d- (inches) 

. . 5S 0.13 10.48 

. . 10S 0.17 10.42 

. 20 . 0.25 10.25 

. 30 . 0.31 10.14 

STD 40 40S 0.37 10.02 

XS 60 80S 0.5 9.75 

. 80 . 0.59 9.56 

. 100 . 0.72 9.31 

. 120 . 0.84 9.06 

. 140 . 1 8.75 

. 160 . 1.13 8.5 

. . 5S 0.16 12.44 

. . 10S 0.18 12.39 

. 20 . 0.25 12.25 

. 30 . 0.33 12.09 

STD . 40S 0.38 12 

. 40 . 0.41 11.94 

XS . 80S 0.5 11.75 

. 60 . 0.56 11.63 

. 80 . 0.69 11.37 

. 100 . 0.84 11.06 

. 120 . 1 10.75 

. 140 . 1.13 10.5 

. 160 . 1.31 10.13 

. . 5S 156 13.69 

. . 10S 0.19 13.62 

. 10 . 0.25 13.5 

. 20 . 0.31 13.38 

STD 30 . 0.38 13.25 

. 40 . 0.44 13.12 

XS . . 0.5 13 

. 60 . 0.59 12.81 

. 80 . 0.75 12.5 

. 100 . 0.94 12.12 

. 120 . 1.09 11.81 

. 140 . 1.25 11.5 

. 160 . 1.41 11.19 

. . 5S 0.17 15.67 

. . 10S 0.19 15.62 

. 10 . 0.25 15.5 

. 20 . 0.31 15.38 

STD 30 . 0.38 15.25 

XS 40 . 0.5 15 

. 60 . 0.66 14.69 

. 80 . 0.84 14.31 

. 100 . 1.03 13.94 

. 120 . 1.22 13.56 

. 140 . 1.44 13.12 

. 160 . 1.59 12.81 

1 2 3 4 5 6 7 




7.10 



1 2 3 4 5 6 7 


Pipe Size 

(inches) 


(inches) 

18 18 

20 20 

22 22 

24 24 

Steel 




Schedule No. 


-t- (inches) 


-d- (inches) 

. . 5S 0.17 17.67 

. . 10S 0.19 17.62 

. 10 . 0.25 17.5 

. 20 . 0.31 17.38 

STD . . 0.38 17.25 

. 30 . 0.44 17.12 

XS . . 0.5 17 

. 40 . 0.56 16.88 

. 60 . 0.75 16.5 

. 80 . 0.94 16.12 

. 100 . 1.16 15.69 

. 120 . 1.38 15.25 

. 140 . 1.56 14.88 

. 160 . 1.78 14.44 

. . 5S 0.19 19.62 

. . 10S 0.22 19.56 

. 10 . 0.25 19.5 

STD 20 . 0.38 19.25 

XS 30 . 0.5 19 

. 40 . 0.59 18.81 

. 60 . 0.81 18.38 

. 80 . 1.03 17.94 

. 100 . 1.28 17.44 

. 120 . 1.5 17 

. 140 . 1.75 16.5 

. 160 . 1.97 16.06 

. . 5S 0.19 21.62 

. . 10S 0.22 21.56 

. 10 . 0.25 21.5 

STD 20 . 0.38 21.25 

XS 30 . 0.5 21 

. 60 . 0.88 20.25 

. 80 . 1.13 19.75 

. 100 . 1.38 19.25 

. 120 . 1.63 18.75 

. 140 . 1.88 18.25 

. 160 . 2.13 17.75 

. . 5S 0.22 23.56 

. 10 10S 0.25 23.5 

STD 20 . 0.38 23.25 

XS . . 0.5 23 

. 30 . 0.56 22.88 

. 40 . 0.69 22.62 

. 60 . 0.97 22.06 

. 80 . 1.22 21.56 

. 100 . 1.53 20.94 

. 120 . 1.81 20.38 

. 140 . 2.06 19.88 

. 160 . 2.34 19.31 

All dimensions are in mm unless otherwise stated. All weights are in Kg and are approximate.

7.11 



Diameter (mm) 

Diameter (in) 

Cross Sectional 

Area (mm^2) 

SWG BWG or Stubs W & M AWG or B&S 


No. or 

Letter Drill 

Inch 

Fraction Drill 

14.73 0.58 170.46 6/0 

13.12 0.52 135.18 5/0 

12.7 0.5 126.68 0000000 5/0 39815 

12.45 0.49 121.66 7/0 

12.3 0.48 118.9 31/64 

11.9 0.47 111.36 15/32 

11.79 0.46 109.09 000000 

11.72 0.46 107.92 6/0 

11.68 0.46 107.22 4/0 

11.53 0.45 104.45 4/0 

11.51 0.45 104.03 29/64 

11.11 0.44 96.99 7/16 

10.97 0.43 94.56 00000 

10.93 0.43 93.91 5/0 

10.8 0.43 91.52 3/0 

10.72 0.42 90.19 27/64 

10.5 0.41 86.59 Z 

10.4 0.41 85.01 3/0 

10.32 0.41 83.6 13/32 

10.3 0.41 83.32 Y 

10.16 0.4 81.07 0000 

10.1 0.4 80.12 X 

10 0.39 78.54 4/0 

9.92 0.39 77.3 25/64 

9.65 0.38 73.17 2/0 

9.53 0.38 71.26 V 3/8 

9.45 0.37 70.12 000 

9.3 0.37 67.93 U 

9.27 0.36 67.43 2/0 

9.21 0.36 66.58 3/0 

9.13 0.36 65.45 23/64 

9.1 0.36 65.04 T 

8.84 0.35 61.36 00 

8.8 0.35 60.82 S 

8.73 0.34 59.89 11/32 

8.64 0.34 58.58 1/0 

8.6 0.34 58.09 R 

8.41 0.33 55.52 2/0 

8.4 0.33 55.42 Q 

8.25 0.32 53.49 1/0 

8.23 0.32 53.19 0 

8.2 0.32 52.81 P 21/64 

8 0.32 50.27 O 

7.94 0.31 49.48 5/16 

7.79 0.31 47.6 1/0 

7.7 0.3 46.57 N 

7.62 0.3 45.6 1 1 

7.54 0.3 44.67 19/64 

1 2 3 4 5 6 7 




7.12 



1 2 3 4 5 6 7 


Diameter (mm) 

Diameter (in) 


Area (mm^2) 


No. or 

Letter Drill 

Inch 


7.5 0.3 44.18 M 

7.4 0.29 43 L 

7.35 0.29 42.41 1 

7.21 0.28 40.87 2 

7.19 0.28 40.58 1 

7.14 0.28 40.07 K 9/32 

7.01 0.28 38.59 2 

7 0.28 38.48 J 

6.9 0.27 37.39 I 

6.75 0.27 35.74 H 17/64 

6.67 0.26 34.92 2 

6.6 0.26 34.21 G 

6.58 0.26 33.99 3 

6.54 0.26 33.62 2 

6.5 0.26 33.18 F 

6.4 0.25 32.17 3 

6.35 0.25 31.67 E 1/4 

6.2 0.24 30.19 D 

6.19 0.24 30.09 3 

6.1 0.24 29.22 C 

6.05 0.24 28.7 4 

6 0.24 28.27 B 

5.94 0.23 27.84 A 15/64 

5.89 0.23 27.25 4 

5.83 0.23 26.66 3 

5.8 0.23 26.42 1 

5.72 0.23 25.72 4 

5.59 0.22 24.52 5 2 

5.56 0.22 24.25 7/32 

5.38 0.21 22.73 5 3 

5.3 0.21 22.06 4 

5.26 0.21 21.71 5 

5.2 0.2 21.24 5 or 6 

5.19 0.2 21.15 4 

5.16 0.2 20.88 6 13/64 

5.1 0.2 20.43 7 or 8 

5 0.2 19.64 9 

4.9 0.19 18.86 10 or 11 

4.88 0.19 18.7 6 6 

4.8 0.19 18.1 11 

4.76 0.19 17.81 3/16 

4.7 0.19 17.35 13 

4.62 0.18 16.76 5 14 

4.57 0.18 16.42 7 15 

4.5 0.18 15.88 7 16 

4.47 0.18 15.69 7 

4.4 0.17 15.2 17 

4.37 0.17 14.97 11/64 

4.3 0.17 14.52 18 

4.19 0.17 13.8 8 19 



7.13 



Diameter (mm) 

Diameter (in) 


Area (mm^2) 



No. or 

Letter Drill 

Inch 


4.12 0.16 13.3 8 6 

4.1 0.16 13.2 20 

4.06 0.16 12.95 8 

4 0.16 12.57 21 or 22 

3.97 0.16 12.37 5/32 

3.9 0.15 11.95 23 or 24 

3.8 0.15 11.34 25 

3.76 0.15 11.1 9 9 

3.73 0.15 10.95 26 

3.66 0.14 10.52 9 7 27 

3.57 0.14 10.02 28 9/64 

3.5 0.14 9.62 29 

3.43 0.14 9.23 10 

3.4 0.13 9.1 10 

3.3 0.13 8.55 30 

3.25 0.13 8.3 10 8 

3.18 0.13 7.92 1/8 

3.05 0.12 7.3 11 11 

3 0.12 7.07 31 

2.95 0.12 6.84 11 32 

2.9 0.11 6.63 9 

2.85 0.11 6.38 33 

2.8 0.11 6.15 34 or 35 

2.77 0.11 6.02 12 7/64 

2.7 0.11 5.73 36 

2.68 0.11 5.64 12 

2.64 0.1 5.47 12 37 

2.6 0.1 5.31 38 

2.59 0.1 5.25 10 

2.55 0.1 5.1 39 

2.5 0.1 4.9 40 

2.45 0.1 4.71 41 

2.41 0.1 4.57 13 

2.38 0.09 4.46 42 3/32 

2.34 0.09 4.3 13 

2.32 0.09 4.24 13 

2.3 0.09 4.17 11 

2.26 0.09 4 43 

2.2 0.09 3.8 44 

2.11 0.08 3.49 14 

2.1 0.08 3.46 45 

2.05 0.08 3.3 46 

2.03 0.08 3.24 14 14 12 

2 0.08 3.14 47 

1.98 0.08 3.09 5/64 

1.95 0.08 2.99 48 

1.85 0.07 2.69 49 

1.83 0.07 2.63 15 15 15 13 

1.78 0.07 2.5 50 

1.7 0.07 2.27 51 

1 2 3 4 5 6 7 




7.14 



1 2 3 4 5 6 7 


Diameter (mm) 

Diameter (in) 


Area (mm^2) 


No. or 

Letter Drill 

Inch 


1.65 0.07 2.14 16 

1.63 0.06 2.09 16 14 

1.6 0.06 2.01 52 

1.59 0.06 1.98 16 1/16 

1.5 0.06 1.77 53 

1.47 0.06 1.7 17 

1.45 0.06 1.65 15 

1.42 0.06 1.58 17 

1.4 0.06 1.54 54 

1.38 0.05 1.5 17 

1.3 0.05 1.33 55 

1.29 0.05 1.3 16 

1.24 0.05 1.22 18 

1.22 0.05 1.17 18 

1.21 0.05 1.14 18 

1.18 0.05 1.1 56 3/64 

1.15 0.05 1.04 17 

1.13 0.04 1 

1.1 0.04 0.95 57 

1.07 0.04 0.89 19 58 

1.04 0.04 0.85 19 59 

1.02 0.04 0.82 19 18 60 

1 0.04 0.79 61 

0.98 0.04 0.75 62 

0.95 0.04 0.71 63 

0.91 0.04 0.66 20 19 64 

0.89 0.04 0.62 20 65 

0.88 0.03 0.61 20 

0.85 0.03 0.57 66 

0.81 0.03 0.52 21 21 67 

0.81 0.03 0.52 21 20 

0.79 0.03 0.49 68 1/32 

0.75 0.03 0.44 69 

0.71 0.03 0.4 22 22 22 21 70 

0.66 0.03 0.34 23 71 

0.64 0.03 0.32 23 22 72 

0.61 0.02 0.29 23 73 

0.58 0.02 0.26 24 74 

0.57 0.02 0.26 23 

0.56 0.02 0.25 24 24 

0.52 0.02 0.21 75 

0.51 0.02 0.2 25 25 25 24 76 

0.46 0.02 0.16 26 26 26 

0.45 0.02 0.16 25 

0.45 0.02 0.16 77 

0.44 0.02 0.15 25.25 

0.44 0.02 0.15 27 

0.43 0.02 0.14 25.5 

0.42 0.02 0.14 27 28 25.75 

0.41 0.02 0.13 27 

0.4 0.02 0.13 26 

0.4 0.02 0.12 78 



7.15 



Diameter (mm) 

Diameter (in) 


Area (mm^2) 



No. or 

Letter Drill 

Inch 


0.4 0.02 0.12 1/64 

0.39 0.02 0.12 26.25 

0.38 0.02 0.11 26.5 

0.38 0.01 0.11 29 79 

0.38 0.01 0.11 28 

0.37 0.01 0.11 26.75 

0.36 0.01 0.1 27 

0.36 0.01 0.1 28 30 

0.35 0.01 0.1 27.25 

0.35 0.01 0.09 29 80 

0.34 0.01 0.09 27.5 

0.33 0.01 0.09 29 31 27.75 

0.33 0.01 0.08 32 

0.32 0.01 0.08 28 

0.32 0.01 0.08 30 

0.31 0.01 0.08 28.25 

0.3 0.01 0.07 30 

0.3 0.01 0.07 28.5 

0.3 0.01 0.07 33 

0.3 0.01 0.07 31 28.75 

0.29 0.01 0.06 29 

0.28 0.01 0.06 29.25 

0.27 0.01 0.06 32 

0.27 0.01 0.06 29.5 

0.26 0.01 0.05 34 

0.26 0.01 0.05 29.75 

0.25 0.01 0.05 33 31 30 

0.25 0.01 0.05 30.25 

0.24 0.01 0.05 35 

0.24 0.01 0.45 30.5 

0.23 0.01 0.04 34 30.75 

0.23 0.01 0.04 32 36 31 

0.22 0.01 0.04 31.25 

0.21 0.01 0.04 35 37 31.5 

0.21 0.01 0.03 31.75 

0.2 0.01 0.03 32 

0.2 0.01 0.03 33 38 

0.2 0.01 0.03 32.25 

0.19 0.01 0.03 36 39 

0.19 0.01 0.03 32.5 

0.19 0.01 0.03 32.75 

0.18 0.01 0.03 33 

0.18 0.01 0.02 34 40 

0.17 0.01 0.02 33.25 

0.17 0.01 0.02 37 

0.17 0.01 0.02 33.5 

0.17 0.01 0.02 41 

0.16 0.01 0.02 33.75 

0.16 0.01 0.02 42 34 

0.16 0.01 0.02 34.25 

0.15 0.01 0.02 38 43 

0.15 0.01 0.02 34.5 

1 2 3 4 5 6 7 




7.16 



1 2 3 4 5 6 7 


Diameter (mm) 

Diameter (in) 


Area (mm^2) 


0.15 0.01 0.02 44 34.75 

0.14 0.01 0.02 45 35 

0.14 0.01 0.02 35.25 

0.13 0.01 0.01 35.5 

0.13 0.01 0.01 39 46 

0.13 0.01 0.01 35.75 

0.13 0.01 0.01 35 47 36 

0.12 0 0.01 40 48 

0.12 0 0.01 36.5 

0.12 0 0.01 49 

0.11 0 0.01 37 

0.11 0 0.01 41 50 

0.11 0 0.01 37.5 

0.1 0 0.01 42 36 38 

0.1 0 0.01 38.5 

0.09 0 0.01 43 

0.09 0 0.01 39 

0.08 0 0.01 39.5 

0.08 0 0.01 44 

0.08 0 0 40 

0.07 0 0 45 41 

0.06 0 0 42 

0.06 0 0 46 

0.06 0 0 43 

0.05 0 0 47 44 

0.04 0 0 45 

0.04 0 0 48 

0.04 0 0 46 

0.04 0 0 47 

0.03 0 0 48 

0.03 0 0 49 

0.28 0 0 49 

0.03 0 0 50 50 

0.02 0 0 51 

0.02 0 0 52 

0.02 0 0 53 

0.02 0 0 54 

0.01 0 0 55 

0.01 0 0 56 

No. or 

Letter Drill 

Inch

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