flanges flange tables - xa.yimg.comxa.yimg.com/.../590542939/name/flange+tables.pdf · pipe to...

28 29

Threaded (Screwed) FlangeS made of steel, are confined to special

applications. Their chief merit is that they can be assembled without welding:

this explains their use in extremely high pressure services, particularly at or

near atmospheric temperature where alloy steel is essential for strength and

where the necessary post–weld heat treatment is impractical. Screwed flanges

are unsuitable for conditions involving temperature or bending stresses of any

magnitude, particularly under cyclic conditions where leakage through the

threads may occur in relatively few cycles of heating or stress: seal welding is

sometimes employed to overcome this, but cannot be considered as

entirely satisfactory.

Slip–On

welding neck FlangeS are distinguished from other types by their long

tapered hub and gentle transition of thickness in the region of the butt

weld joining them to the pipe. The long tapered hub provides an important

reinforcement of the flange proper from the standpoint of strength and

resistance to dishing. The smooth transition from flange thickness to pipe

wall thickness effected by the taper is extremely beneficial under conditions

of repeated bending, caused by line expansion or other variable forces,

and produces an endurance strength of welding neck flanged assemblies

equivalent to that of a butt welded pipe. Thus this type of flange is preferred

for every severe service condition, resulting from high pressure or sub–zero/

elevated temperatures, and whether loading conditions are substantially

constant or fluctuates between wide limits: welding neck flanges are

particularly recommended for handling high explosive, flammable or costly

liquids, where loss of tightness or local failure may be accompanied by

disastrous consequences.

Blind

Threaded

Slip on FlangeS continue to be preferred to welding neck flanges by many

users due to their initially lower cost, the reduced accuracy required in cutting

pipe to length and the somewhat greater ease of assembly alignment; however

their final installed cost is probably not much, if any, less than that of welding

neck flanges. Their calculated strength under internal pressure is of the order

of two–thirds that of welding neck flanges, while their life under fatigue is

about one–third. For these reasons slip on flanges are limited to sizes 1/2" to

2 1/2" in the 1500lb standard, are not shown in the 2500lb standard and the

aSMe Boiler construction code limits their use to the 4" size.

WeldingNeck

Blind FlangeS are used to blank off the ends of piping, valves and pressure

vessel openings. From the standpoint of internal pressure and bolt loadings,

blind flanges, particularly in the larger sizes, are the most highly stressed of

all american Standard flange types; however, since the maximum stresses in a

blind flange are bending stresses at the centre, they can safely be permitted to

be higher than other types of flanges. where temperature, or repeated severe

water hammer, is a service factor, consideration should be given to closures

made of welding neck flanges and caps.

nom.Bore

(rating)

FlangeTable

out.dia.

no. ofBolt holes

Bolt holedia. p.c.d. Thickness

d 95 4 14 67 5*e 95 4 14 67 6*F 95 4 14 67 10*h 114 4 18 83 13J 114 4 18 83 16

15mm 150 89 4 16 60 11**300 95 4 16 67 14**

1/2" 6 80 4 11 55 12**10 95 4 14 65 14**16 95 4 14 65 14**25 95 4 14 65 16**d 102 4 14 73 5*e 102 4 14 73 6*F 102 4 14 73 10*h 114 4 18 83 13J 114 4 18 83 16

20mm 150 98 4 16 70 13**300 117 4 19 83 16**

3/4" 6 90 4 11 65 14**10 105 4 14 75 16**16 105 4 14 75 16**25 105 4 14 75 18**d 114 4 14 83 5*e 114 4 14 83 7*F 121 4 18 87 10*h 121 4 18 87 14J 121 4 18 87 19

25mm 150 108 4 16 79 14**300 124 4 19 89 17**

1" 6 100 4 11 75 14**10 115 4 14 85 16**16 115 4 14 85 16**25 115 4 14 85 18**d 121 4 14 87 6*e 121 4 14 87 8*F 133 4 18 98 13h 133 4 18 98 17J 133 4 18 98 19

32mm 150 117 4 16 89 16**300 133 4 19 98 19**

1 1/4" 6 120 4 14 90 16**10 140 4 18 100 16**16 140 4 18 100 16**25 140 4 18 100 18**d 133 4 14 98 6*e 133 4 14 98 9*F 140 4 18 105 13h 140 4 18 105 17J 140 4 18 105 22

40mm 150 127 4 16 98 17**300 155 4 22 114 21**

1 1/2" 6 130 4 14 100 16**10 150 4 18 110 16**16 150 4 18 110 16**25 150 4 18 110 18**d 152 4 18 114 8*e 152 4 18 114 10*F 165 4 18 127 16h 165 4 18 127 19J 165 4 22 127 25

50mm 150 152 4 19 121 19**300 165 8 19 127 22**

2" 6 140 4 14 110 16**10 165 4 18 125 18**16 165 4 18 125 18**25 165 4 18 125 20**d 165 4 18 127 8*e 165 4 18 127 10*F 184 8 18 146 16h 184 8 18 146 19J 184 8 22 146 25

65mm 150 178 4 19 140 22**300 191 8 22 149 25**

2 1/2" 6 160 4 14 130 16**10 185 4 18 145 18**16 185 4 18 145 18**25 185 8 18 145 22**

flanges flange TaBles

d = BS.10 Table 'd'e = BS.10 Table 'e'F = BS.10 Table 'F'h = BS.10 Table 'h'

J = BS.10 Table 'J'150 = BS.1560 class 1506 = BS.4504 Table 6 (6bar)10 = BS.4504 Table 10 (10 bar)

16 = BS.4504 Table 16 (16 bar)25 = BS.4504 Table 25 (25 bar)

* 13mm thickness may be used** thickness includes raises face – see Flange standard

nom.Bore

(rating)

FlangeTable

out.dia.

no. ofBolt holes

Bolt holedia. p.c.d. Thickness

d 184 4 18 146 10*e 184 4 18 146 11*F 203 8 18 165 16h 203 8 18 165 22J 203 8 22 165 32

80mm 150 191 4 19 152 24**300 210 8 22 168 29**

3" 6 190 4 18 150 18**10 200 8 18 160 20**16 200 8 18 160 20**25 200 8 18 160 24**d 216 4 18 178 10e 216 8 18 178 13F 229 8 18 191 19h 229 8 18 191 25J 229 8 22 191 34

100mm 150 229 8 19 191 24**300 254 8 22 200 32**

4" 6 210 4 18 170 18**10 220 8 18 180 20**16 220 8 18 180 20**25 235 8 22 190 24**d 254 8 18 210 13e 254 8 18 210 14F 279 8 22 235 22h 279 8 22 235 29J 279 8 25 235 38

125mm 150 254 8 22 216 24**300 279 8 22 235 35**

5" 6 240 8 18 200 20**10 250 8 18 210 22**16 250 8 18 210 22**25 270 8 26 220 26**d 279 8 18 235 13e 279 8 22 235 17F 305 12 22 260 22h 305 12 22 260 29J 305 12 25 260 38

150mm 150 279 8 22 241 25**300 318 12 22 270 37**

6" 6 265 8 18 225 20**10 285 8 22 240 22**16 285 8 22 240 22**25 300 8 26 250 28**d 337 8 18 292 13e 337 8 22 292 19F 368 12 22 324 25h 368 12 22 324 32J 368 12 25 324 41

200mm 150 343 8 22 298 29**300 381 12 25 330 41**

8" 6 320 8 18 280 22**10 340 8 22 295 24**16 340 12 22 295 24**25 360 12 26 310 32**d 406 8 22 356 16e 406 12 22 356 22F 432 12 25 381 25h 432 12 25 381 35J 432 12 27 381 48

250mm 150 406 12 25 362 30**300 444 16 29 387 48**

10" 6 375 12 18 335 24**10 395 12 22 350 26**16 405 12 26 355 26**25 425 12 30 370 32**d 457 12 22 406 16e 457 12 25 406 25F 489 16 25 438 29h 489 16 25 438 38J 489 16 27 438 51

300mm 150 482 12 25 431 32**300 520 16 32 450 51**

12" 6 440 12 22 395 24**10 445 12 22 400 26**16 460 12 26 410 28**25 485 16 30 430 38**

30 31

Dimensional Tolerances

ANSI B 16.5

Dimensional Tolerances

ANSI B 16.5

WelDIng neCK flanges

d outside diameter 1) when od is 24" or lesswhen od is over 24"

±0.06"±0.12"

J inside diameter 2)

10" and smaller12" to 18"20" and larger

+0.03"+0.06"+0.12" – 0.06"

g diameter of contact Face 0.06" raised Face0.25" raised FaceTongue and groove, Male and Female

±0.03"±0.02"±0.02"

a diameter of hub at point of welding 2) 5" and smaller6" and larger

+0.09" – 0.03"+0.16" – 0.03"

m diameter of hub at Base 1) when hub Base is 24" or lesswhen hub Base is over 24"

±0.06"±0.12"

i drilling and Facing Bolt circle diameter kcenter–to–center of adjacent bolt holesMax. eccentricity between bolt circledia. k, and machined facing diameters:sizes 2 1/2" and smallersizes 3" and larger

±0.06"±0.03"

0.03"0.06"

h overall length of hub 10" and smaller12" and larger

± 0.06"±0.12"

b Thickness 18" and smaller20" and larger

+0.12"+0.19"

not f

or

flang

es w

ith

ring

join

t1) This tolerance is not covered by anSi B 16.5

2) independent of the tolerances of the measures J and a, the wall thickness shall not be less than 87.5% of the nominal wall thickness.

lap JoInT, slIp–on, ThreaDeD anD BlInD flanges

1) This tolerance is not covered by anSi B 16.5

d outside diameter 1) when od is 24" or lesswhen od is over 24"

±0.06"±0.12"

J inside diameter Slip–on and lap Joint 10" and smaller12" and largerThreaded

+0.03"+0.06"within limits on boring gauge

diameter of counterbore Same as for inside diameter

g diameter of contact Face 0.06" raised Face0.25" raised FaceTongue and groove, Male and Female

±0.03"±0.02"±0.02"

m outside diameter of hub 1) 12" and smaller14" and larger

+0.09" – 0.06"±0.12"

i drilling and Facing Bolt circle diameter kcenter–to–center of adjacent bolt holesMax. eccentricity between bolt circledia. k, and machined facing diameters:sizes 21/2" and smallersizes 3" and larger

±0.06"±0.03"

0.03"0.06"

h overall length of hub 1) 18" and smaller20" and larger

+0.12" – 0.03"+0.19" – 0.03"

b Thickness 18" and smaller20" and larger

+0.12"+0.19"

not f

or

flang

es w

ith

ring

join

t

32 33

pipe Flange hub raisedFace

gin.

mm

drilling Template approx.weight≈

poundskilo

nom.Sizedn

odin.

mm

din.

mm

Jin.

mm

bin.

mm

hin.

mm

ain.

mm

min.

mmnumber

iin.

mm

kin.

mm

1/2" 0.84 3.50

to b

e sp

ecifi

ed b

y pu

rcha

ser

0.44 1.88 0.84 1.19 1.38 4 0.62 2.38 1.121.3 88.9 11.2 47.8 21.3 30.2 35.1 15.7 60.5 0.48

3/4" 1.05 3.88 0.50 2.06 1.05 1.50 1.69 4 0.62 2.75 1.626.7 98.6 12.7 52.3 26.7 38.1 42.9 15.7 69.9 0.71

1" 1.315 4.25 0.56 2.19 1.32 1.94 2.00 4 0.62 3.12 2.233.4 108.0 14.2 55.6 33.5 49.3 50.8 15.7 79.2 1.01

1 1/4" 1.66 4.62 0.62 2.25 1.66 2.31 2.50 4 0.62 3.50 2.942.2 117.3 15.7 57.2 42.2 58.7 63.5 15.7 88.9 1.33

1 1/2" 1.90 5.00 0.69 2.44 1.90 2.56 2.88 4 0.62 3.88 3.848.3 127.0 17.5 62.0 48.3 65.0 73.2 15.7 98.6 1.72

2" 2.375 6.00 0.75 2.50 2.38 3.06 3.62 4 0.75 4.75 5.760.3 152.4 19.1 63.5 60.5 77.7 91.9 19.1 120.7 2.58

2 1/2" 2.875 7.00 0.88 2.75 2.88 3.56 4.12 4 0.75 5.50 9.173.0 177.8 22.4 69.9 73.2 90.4 104.6 19.1 139.7 4.11

3" 3.50 7.50 0.94 2.75 3.50 4.25 5.00 4 0.75 6.00 10.888.9 190.5 23.9 69.9 88.9 108.0 127.0 19.1 152.4 4.92

3 1/2" 4.00 8.50 0.94 2.81 4.00 4.81 5.50 8 0.75 7.00 13.4101.6 215.9 23.9 71.4 101.6 122.2 139.7 19.1 177.8 6.08

4" 4.50 9.00 0.94 3.00 4.50 5.31 6.19 8 0.75 7.50 15.1114.3 228.6 23.9 76.2 114.3 134.9 157.2 19.1 190.5 6.84

5" 5.563 10.00 0.94 3.50 5.56 6.44 7.31 8 0.88 8.50 18.9141.3 254.0 23.9 88.9 141.2 163.6 185.7 22.4 215.9 8.56

6" 6.625 11.00 1.00 3.50 6.63 7.56 8.50 8 0.88 9.50 23.3168.3 279.4 25.4 88.9 168.4 192.0 215.9 22.4 241.3 10.6

8" 8.625 13.50 1.12 4.00 8.63 9.69 10.62 8 0.88 11.75 38.8219.1 342.9 28.4 101.6 219.2 246.1 269.7 22.4 298.5 17.6

10" 10.75 16.00 1.19 4.00 10.75 12.00 12.75 12 1.00 14.25 53.0273.0 406.4 30.2 101.6 273.1 304.8 323.9 25.4 362.0 24.0

12" 12.75 19.00 1.25 4.50 12.75 14.38 15.00 12 1.00 17.00 80.4323.8 482.6 31.8 114.3 323.9 365.3 381.0 25.4 431.8 36.5

14" 14.0 21.00 1.38 5.00 14.00 15.75 16.25 12 1.12 18.75 107355.6 533.4 35.1 127.0 355.6 400.1 412.8 28.4 476.3 48.4

16" 16.0 23.50 1.44 5.00 16.00 18.00 18.50 16 1.12 21.25 134406.4 596.9 36.6 127.0 406.4 457.2 469.9 28.4 539.8 60.6

18" 18.0 25.00 1.56 5.50 18.00 19.88 21.00 16 1.25 22.75 151457.2 635.0 39.6 139.7 457.2 505.0 533.4 31.8 577.9 68.3

20" 20.0 27.50 1.69 5.69 20.00 22.00 23.00 20 1.25 25.00 186508.0 698.5 42.9 144.5 508.0 558.8 584.2 31.8 635.0 84.5

24" 24.0 32.00 1.88 6.00 24.00 26.12 27.25 20 1.38 29.50 253609.6 812.8 47.8 152.4 609.6 663.4 692.2 35.1 749.3 115

pipe Flange hub raisedFace

gin.

mm


poundskilo

nom.Sizedn

odin.

mm

din.

mm

Jin.

mm

bin.

mm

hin.

mm

ain.

mm

min.

mmnumber

iin.

mm

kin.

mm

1/2" 0.84 3.75

to b

e sp

ecifi

ed b

y pu

rcha

ser

0.56 2.06 0.84 1.50 1.38 4 0.62 2.62 1.721.3 95.2 14.2 52.3 21.3 38.1 35.0 15.7 66.5 0.75

3/4" 1.05 4.62 0.62 2.25 1.05 1.88 1.69 4 0.75 3.25 2.826.7 117.3 15.7 57.1 26.7 47.7 42.9 19.0 82.5 1.26

1" 1.315 4.88 0.69 2.44 1.32 2.12 2.00 4 0.75 3.50 3.533.4 123.9 17.5 62.0 33.5 53.8 50.8 19.0 88.9 1.52

1 1/4" 1.66 5.25 0.75 2.56 1.66 2.50 2.50 4 0.75 3.88 4.542.2 133.3 19.0 65.0 42.2 63.5 63.5 19.0 98.5 2.03

1 1/2" 1.90 6.12 0.81 2.69 1.90 2.75 2.88 4 0.88 4.50 6.448.3 155.4 20.6 68.3 48.3 69.8 73.1 22.3 114.3 2.89

2" 2.375 6.50 0.88 2.75 2.38 3.31 3.62 8 0.75 5.00 7.560.3 165.1 22.3 69.8 60.4 84.0 91.9 19.0 127.0 3.40

2 1/2" 2.875 7.50 1.00 3.00 2.88 3.94 4.12 8 0.88 5.88 11.473.0 190.5 25.4 76.2 73.1 100.0 104.6 22.3 149.3 5.17

3" 3.50 8.25 1.12 3.12 3.50 4.62 5.00 8 0.88 6.62 15.388.9 209.5 28.4 79.2 88.9 117.3 127.0 22.3 168.1 6.93

3 1/2" 4.00 9.00 1.19 3.19 4.00 5.25 5.50 8 0.88 7.25 19.1101.6 228.6 30.2 81.0 101.6 133.3 139.7 22.3 184.1 8.67

4" 4.50 10.00 1.25 3.38 4.50 5.75 6.19 8 0.88 7.88 24.7114.3 254.0 31.7 85.8 114.3 146.0 157.2 22.3 200.1 11.2

5" 5.563 11.00 1.38 3.88 5.56 7.00 7.31 8 0.88 9.25 33.3141.3 279.4 35.0 98.5 141.2 177.8 185.6 22.3 234.9 15.1

6" 6.625 12.50 1.44 3.88 6.63 8.12 8.50 12 0.88 10.62 42.4168.3 317.5 36.5 98.5 168.4 206.2 215.9 22.3 269.7 19.1

8" 8.625 15.00 1.62 4.38 8.63 10.25 10.62 12 1.00 13.00 65.9219.1 381.0 41.1 111.2 219.2 260.3 269.7 25.4 330.2 29.9

10" 10.75 17.50 1.88 4.62 10.75 12.62 12.75 16 1.12 15.25 94.1273.0 444.5 47.7 117.3 273.0 320.5 323.8 28.4 387.3 42.7

12" 12.75 20.50 2.00 5.12 12.75 14.75 15.00 16 1.25 17.75 136323.8 520.7 50.8 130.0 323.8 374.6 381.0 31.7 450.8 61.8

14" 14.00 23.00 2.12 5.62 14.00 16.75 16.25 20 1.25 20.25 189355.6 584.2 53.8 142.7 355.6 425.4 412.7 31.7 514.3 85.8

16" 16.00 25.50 2.25 5.75 16.00 19.00 18.50 20 1.38 22.50 234406.4 647.7 57.1 146.0 406.4 482.6 469.9 35.0 571.5 106

18" 18.00 28.00 2.38 6.25 18.00 21.00 21.00 24 1.38 24.75 289457.2 711.2 60.4 158.7 457.2 533.4 533.4 35.0 628.6 131

20" 20.00 30.50 2.50 6.38 20.00 23.12 23.00 24 1.38 27.00 348508.0 774.7 63.5 162.0 508.0 587.2 584.2 35.0 685.8 158

24" 24.00 36.00 2.75 6.62 24.00 27.62 27.25 24 1.62 32.00 507609.6 914.4 69.8 168.1 609.6 701.5 692.1 41.1 812.8 230

flanges – ansI 16.5 – Class 150 flanges – ansI 16.5 – Class 300

Product Shortname: “F150”

150 lb/in2

welding neck Flanges


300 lb/in2

welding neck Flanges

For other sizes and classes, please contact your nearest Fletcher easysteel branch. For other sizes and classes, please contact your nearest Fletcher easysteel branch.

34 35

pipe Flange hubmin.

mm

raisedFace

gin.

mm


poundskilo

nom.Sizedn

odin.

mm

din.

mm

Jin.

mm

bin.

mm

hin.

mmnumber

iin.

mm

kin.

mm

1/2" 0.84 3.75 0.88 0.56 0.88 1.50 1.38 4 0.62 2.62 1.421.3 95.2 22.3 14.2 22.3 38.1 35.0 15.7 66.5 0.64

3/4" 1.05 4.62 1.09 0.62 1.00 1.88 1.69 4 0.75 3.25 2.526.7 117.3 27.7 15.7 25.4 47.7 42.9 19.0 82.5 1.12

1" 1.315 4.88 1.36 0.69 1.06 2.12 2.00 4 0.75 3.50 3.033.4 123.9 34.5 17.5 26.9 53.8 50.8 19.0 88.9 1.36

1 1/4" 1.66 5.25 1.70 0.75 1.06 2.50 2.50 4 0.75 3.88 3.742.2 133.3 43.2 19.0 26.9 63.5 63.5 19.0 98.5 1.68

1 1/2" 1.90 6.12 1.95 0.81 1.19 2.75 2.88 4 0.88 4.50 5.548.3 155.4 49.5 20.6 30.2 69.8 73.1 22.3 114.3 2.49

2" 2.375 6.50 2.44 0.88 1.31 3.31 3.62 8 0.75 5.00 6.360.3 165.1 62.0 22.3 33.2 84.0 91.9 19.0 127.0 2.87

2 1/2" 2.875 7.50 2.94 1.00 1.50 3.94 4.12 8 0.88 5.88 9.573.0 190.5 74.7 25.4 38.1 100.0 104.6 22.3 149.3 4.32

3" 3.50 8.25 3.57 1.12 1.69 4.62 5.00 8 0.88 6.62 12.988.9 209.5 90.7 28.4 42.9 117.3 127.0 22.3 168.1 5.85

3 1/2" 4.00 9.00 4.07 1.19 1.75 5.25 5.50 8 0.88 7.25 16.2101.6 228.6 103.4 30.2 44.4 133.3 139.7 22.3 184.1 7.34

4" 4.50 10.00 4.57 1.25 1.88 5.75 6.19 8 0.88 7.88 21.2114.3 254.0 116.1 31.7 47.7 146.0 157.2 22.3 200.1 9.61

5" 5.563 11.00 5.66 1.38 2.00 7.00 7.31 8 0.88 9.25 27.1141.3 279.4 143.8 35.0 50.8 177.8 185.6 22.3 234.9 12.3

6" 6.625 12.50 6.72 1.44 2.06 8.12 8.50 12 0.88 10.62 34.4168.3 317.5 170.7 36.5 52.3 206.2 215.9 22.3 269.7 15.6

8" 8.625 15.00 8.72 1.62 2.44 10.25 10.62 12 1.00 13.00 53.3219.1 381.0 221.5 41.1 61.9 260.3 269.7 25.4 330.2 24.2

10" 10.75 17.50 10.88 1.88 2.62 12.62 12.75 16 1.12 15.25 75.1273.0 444.5 276.3 47.7 66.5 320.5 323.8 28.4 387.3 34.1

12" 12.75 20.50 12.88 2.00 2.88 14.75 15.00 16 1.25 17.75 110323.8 520.7 327.1 50.8 73.1 374.6 381.0 31.7 450.8 49.8

14" 14.0 23.00 14.14 2.12 3.00 16.75 16.25 20 1.25 20.25 154355.6 584.2 359.1 53.8 76.2 425.4 412.7 31.7 514.3 69.9

16" 16.0 25.50 16.16 2.25 3.25 19.00 18.50 20 1.38 22.50 194406.4 647.7 410.5 57.1 82.5 482.6 469.9 35.0 571.5 88.1

18" 18.0 28.00 18.18 2.38 3.50 21.00 21.00 24 1.38 24.75 240457.2 711.2 461.8 60.4 88.9 533.4 533.4 35.0 628.6 109

20" 20.0 30.50 20.20 2.50 3.75 23.12 23.00 24 1.38 27.00 295508.0 774.7 513.1 63.5 95.2 587.2 584.2 35.0 685.8 134

24" 24.0 36.00 24.25 2.75 4.19 27.62 27.25 24 1.62 32.00 443609.6 914.4 615.9 69.8 106.4 701.5 692.1 41.1 812.8 201

pipe Flange hubmin.

mm

raisedFace

gin.

mm


poundskilo

nom.Sizedn

odin.

mm

din.

mm

Jin.

mm

bin.

mm

hin.

mmnumber

iin.

mm

kin.

mm

1/2" 0.84 3.50 0.88 0.44 0.62 1.19 1.38 4 0.62 2.38 0.921.3 88.9 22.4 11.2 15.7 30.2 35.1 15.7 60.5 0.39

3/4" 1.05 3.88 1.09 0.50 0.62 1.50 1.69 4 0.62 2.75 1.226.7 98.6 27.7 12.7 15.7 38.1 42.9 15.7 69.9 0.56

1" 1.315 4.25 1.36 0.56 0.69 1.94 2.00 4 0.62 3.12 1.733.4 108.0 34.5 14.2 17.5 49.3 50.8 15.7 79.2 0.78

1 1/4" 1.66 4.62 1.70 0.62 0.81 2.31 2.50 4 0.62 3.50 2.342.2 117.3 43.2 15.7 20.6 58.7 63.5 15.7 88.9 1.03

1 1/2" 1.90 5.00 1.95 0.69 0.88 2.56 2.88 4 0.62 3.88 2.948.3 127.0 49.5 17.5 22.4 65.0 73.2 15.7 98.6 1.32

2" 2.375 6.00 2.44 0.75 1.00 3.06 3.62 4 0.75 4.75 4.560.3 152.4 62.0 19.1 25.4 77.7 91.9 19.1 120.7 2.06

2 1/2" 2.875 7.00 2.94 0.88 1.12 3.56 4.12 4 0.75 5.50 7.273.0 177.8 74.7 22.4 28.4 90.4 104.6 19.1 139.7 3.28

3" 3.50 7.50 3.57 0.94 1.19 4.25 5.00 4 0.75 6.00 8.588.9 190.5 90.7 23.9 30.2 108.0 127.0 19.1 152.4 3.85

3 1/2" 4.00 8.50 4.07 0.94 1.25 4.81 5.50 8 0.75 7.00 10.6101.6 215.9 103.4 23.9 31.8 122.2 139.7 19.1 177.8 4.81

4" 4.50 9.00 4.57 0.94 1.31 5.31 6.19 8 0.75 7.50 11.7114.3 228.6 116.1 23.9 33.3 134.9 157.2 19.1 190.5 5.30

5" 5.563 10.00 5.66 0.94 1.44 6.44 7.31 8 0.88 8.50 13.4141.3 254.0 143.8 23.9 36.6 163.6 185.7 22.4 215.9 6.07

6" 6.625 11.00 6.72 1.00 1.56 7.56 8.50 8 0.88 9.50 16.4168.3 279.4 170.7 25.4 39.6 192.0 215.9 22.4 241.3 7.45

8" 8.625 13.50 8.72 1.12 1.75 9.69 10.62 8 0.88 11.75 26.7219.1 342.9 221.5 28.4 44.5 246.1 269.7 22.4 298.5 12.1

10" 10.75 16.00 10.88 1.19 1.94 12.00 12.75 12 1.00 14.25 36.3273.0 406.4 276.4 30.2 49.3 304.8 323.9 25.4 362.0 16.5

12" 12.75 19.00 12.88 1.25 2.19 14.38 15.00 12 1.00 17.00 57.7323.8 482.6 327.2 31.8 55.6 365.3 381.0 25.4 431.8 26.2

14" 14.0 21.00 14.14 1.38 2.25 15.75 16.25 12 1.12 18.75 76.2355.6 533.4 359.2 35.1 57.2 400.1 412.8 28.4 476.3 34.6

16" 16.0 23.50 16.16 1.44 2.50 18.00 18.50 16 1.12 21.25 98.7406.4 596.9 410.5 36.6 63.5 457.2 469.9 28.4 539.8 44.8

18" 18.0 25.00 18.18 1.56 2.69 19.88 21.00 16 1.25 22.75 108457.2 635.0 461.8 39.6 68.3 505.0 533.4 31.8 577.9 48.9

20" 20.0 27.50 20.20 1.69 2.88 22.00 23.00 20 1.25 25.00 136508.0 698.5 513.1 42.9 73.2 558.8 584.2 31.8 635.0 61.9

24" 24.0 32.00 24.25 1.88 3.25 26.12 27.25 20 1.38 29.50 191609.6 812.8 616.0 47.8 82.6 663.4 692.2 35.1 749.3 86.9


150 lb/in2

Slip–on Flanges

flanges – ansI 16.5 – Classes 150 flanges – ansI 16.5 – Class 300


300 lb/in2

Slip–on Flanges


36 37

pipe Flange raisedFace

gin.

mm


poundskilo

nom.Sizedn

od in.

mm

din.

mm

bin.

mmnumber

iin.

mm

kin.

mm

1/2" 0.84 3.75 0.56 1.38 4 0.62 2.62 1.421.3 95.2 14.2 35.0 15.7 66.5 0.64

3/4" 1.05 4.62 0.62 1.69 4 0.75 3.25 2.426.7 117.3 15.7 42.9 19.0 82.5 1.11

1" 1.315 4.88 0.69 2.00 4 0.75 3.50 3.133.4 123.9 17.5 50.8 19.0 88.9 1.39

1 1/4" 1.66 5.25 0.75 2.50 4 0.75 3.88 3.942.2 133.3 19.0 63.5 19.0 98.5 1.79

1 1/2" 1.90 6.12 0.81 2.88 4 0.88 4.50 5.948.3 155.4 20.6 73.1 22.4 114.3 2.66

2" 2.375 6.50 0.88 3.62 8 0.75 5.00 7.060.3 165.1 22.4 91.9 19.0 127.0 3.18

2 1/2" 2.875 7.50 1.00 4.12 8 0.88 5.88 10.773.0 190.5 25.4 104.6 22.4 149.3 4.85

3" 3.50 8.25 1.12 5.00 8 0.88 6.62 15.088.9 209.5 28.4 127.0 22.4 168.1 6.81

3 1/2" 4.00 9.00 1.19 5.50 8 0.88 7.25 19.2101.6 228.6 30.2 139.7 22.4 184.1 8.71

4" 4.50 10.00 1.25 6.19 8 0.88 7.88 25.3114.3 254.0 31.7 157.2 22.4 200.1 11.5

5" 5.563 11.00 1.38 7.31 8 0.88 9.25 34.4141.3 279.4 35.0 185.6 22.4 234.9 15.6

6" 6.625 12.50 1.44 8.50 12 0.88 10.62 46.0168.3 317.5 36.5 215.9 22.4 269.7 20.9

8" 8.625 15.00 1.62 10.62 12 1.00 13.00 75.6219.1 381.0 41.1 269.7 25.4 330.2 34.3

10" 10.75 17.50 1.88 12.75 16 1.12 15.25 117273.0 444.5 47.7 323.8 28.4 387.3 53.3

12" 12.75 20.50 2.00 15.00 16 1.25 17.75 174323.8 520.7 50.8 381.0 31.7 450.8 78.8

14" 14.0 23.00 2.12 16.25 20 1.25 20.25 231355.6 584.2 53.8 412.7 31.7 514.3 105

16" 16.0 25.50 2.25 18.50 20 1.38 22.50 302406.4 647.7 57.1 469.9 35.0 571.5 137

18" 18.0 28.00 2.38 21.00 24 1.38 24.75 386457.2 711.2 60.4 533.4 35.0 628.6 175

20" 20.0 30.50 2.50 23.00 24 1.38 27.00 487508.0 774.7 63.5 584.2 35.0 685.8 221

24" 24.0 36.00 2.75 27.25 24 1.62 32.00 747609.6 914.4 69.8 692.1 41.1 812.8 339

pipe Flange raisedFace

gin.

mm


poundskilo

nom.Sizedn

od in.

mm

din.

mm

bin.

mmnumber

iin.

mm

kin.

mm

1/2" 0.84 3.50 0.44 1.38 4 0.62 2.38 0.921.3 88.9 11.2 35.1 15.7 60.5 0.42

3/4" 1.05 3.88 0.50 1.69 4 0.62 2.75 1.326.7 98.6 12.7 42.9 15.7 69.9 0.61

1" 1.315 4.25 0.56 2.00 4 0.62 3.12 1.9 33.4 108.0 14.2 50.8 15.7 79.2 0.86

1 1/4" 1.66 4.62 0.62 2.50 4 0.62 3.50 2.642.2 117.3 15.7 63.5 15.7 88.9 1.17

1 1/2" 1.90 5.00 0.69 2.88 4 0.62 3.88 3.448.3 127.0 17.5 73.2 15.7 98.6 1.53

2" 2.375 6.00 0.75 3.62 4 0.75 4.75 5.360.3 152.4 19.1 91.9 19.1 120.7 2.42

2 1/2" 2.875 7.00 0.88 4.12 4 0.75 5.50 8.773.0 177.8 22.4 104.6 19.1 139.7 3.94

3" 3.50 7.50 0.94 5.00 8 0.75 6.00 10.9 88.9 190.5 23.9 127.0 19.1 152.4 4.93

3 1/2" 4.00 8.50 0.94 5.50 8 0.75 7.00 13.6101.6 215.9 23.9 139.7 19.1 177.8 6.17

4" 4.50 9.00 0.94 6.19 8 0.75 7.50 15.4114.3 228.6 23.9 157.2 19.1 190.5 7.00

5" 5.563 10.00 0.94 7.31 8 0.88 8.50 19.0141.3 254.0 23.9 185.7 22.4 215.9 8.63

6" 6.625 11.00 1.00 8.50 8 0.88 9.50 24.9168.3 279.4 25.4 215.9 22.4 241.3 11.3

8" 8.625 13.50 1.12 10.62 8 0.88 11.75 43.2219.1 342.9 28.4 269.7 22.4 298.5 19.6

10" 10.75 16.00 1.19 12.75 12 1.00 14.25 63.4273.0 406.4 30.2 323.9 25.4 362.0 28.8

12" 12.75 19.00 1.25 15.00 12 1.00 17.00 95.2323.8 482.6 31.8 381.0 25.4 431.8 43.2

14" 14.0 21.00 1.38 16.25 12 1.12 18.75 128355.6 533.4 35.1 412.8 28.4 476.3 58.1

16" 16.0 23.50 1.44 18.50 16 1.12 21.25 167406.4 596.9 36.6 469.9 28.4 539.8 76.0

18" 18.0 25.00 1.56 21.00 16 1.25 22.75 206457.2 635.0 39.6 533.4 31.8 577.9 93.7

20" 20.0 27.50 1.69 23.00 20 1.25 25.00 269508.0 698.5 42.9 584.2 31.8 635.0 122

24" 24.0 32.00 1.88 27.25 20 1.38 29.50 408609.6 812.8 47.8 692.2 35.1 749.3 185

flanges – ansI 16.5 – Class 150 flanges – ansI 16.5 – Class 300


150 lb/in2

Blind Flanges


300 lb/in2

Blind Flanges


38 39

British Standard Specification Table 2

BS 10 : 1962

Temperature – pressure ratings for alloy Steel Flanges(See Flange MaTerialS)

British Standard Specification Table 1

BS 10 : 1962

Temperature – pressure ratings for carbon Steel Flanges(See Flange MaTerialS)

TABLE

TEmpErATurE

TABLE°F

°c

0 to 250–17.8

to 121.1

0 to 450–17.8

to 232.2

500

260

550

287.8

600

315.6

650

343.3

700

371.1

750

399

800

427

825

441

850

454

875

468

900

482

Max.

hydraulic

Test pressure

(lbf/in2)

prEssurE (lbf/in2)

A

D

E

501

252

100

200

95

185

85

170

80

155

70

140

65

130

55

115

50

100

75

150

300

A

D

E

F

H

J

300

500

700

280

465

650

255

430

600

235

395

550

215

355

500

195

320

450

170

285

400

150

250

350

215

300

180

255

150

210

115

160

450

750

1,050

F

H

J

TeMperaTUre – pressUre raTIngs TeMperaTUre – pressUre raTIngs

intermediate values above 232.2°c (450°F) may be obtained by linear interpolation

1. This rating applies to temperatures above 121.1°c (250°F) up to and including 232.2°c (450°F) and does not apply to flange sizes above 36".

2. it is customary in the gas industry to limit the use of Table a flanges to working gas pressures not exceeding 30 lbf/in2. it is recommended that this limitation

be also applied to compressed air.

FlANge MATerIAlS

BS 10 : 1962 flanges can be made of the following materials as appropriate:

a. (i) Steel complying with BS 1501–161 grade B or c*1

or (ii) Steel complying with BS 1633, grade B*2

or (iii) wrought carbon steel produced by the open hearth or electric process, acid or basic, or by any of the oxygen processes*3

Steel produced by the open hearth, electric or oxygen process are of the full killed or semi–killed type. For the oxygen process the steel shall contain not more that

0.008 per cent nitrogen.

The steel used shall comply with one of the following requirements:

STeel 23.analysis: carbon: 0.26% max.

Sulphur: 0.060% max.

phosphorus 0.060% max.

Tensile Strength: 23 – 30 tonf/in2

percentage elongation not less than 700 divided by tensile

on gauge length of 4√So strength (tonf/in2) of the test piece.

Steel 23 is used only for flanges to Tables a to J inclusive.

STeel 26.analysis: carbon: 0.26% max.

Sulphur: 0.050% max.

phosphorus 0.050% max.

Tensile Strength: 26 – 32tonf/in2

percentage elongation not less than 700 divided by tensile

on gauge length of 4√So *4 strength (tonf/in2) of the test piece.

b. Forged carbon–molybdenum steel to BS 1503 – 240 grade a3.

c. Forged chromium molybdenum steel to BS 1503–620 or BS 3604.3

notes:

1. BS 1501–6, "Steels for use in the chemical, petroleum and allied industries".

2. BS 1633, "Steels for land boilers, receivers and other pressure vessels".

3. This term includes both top and bottom blown oxygen processes.

4. See BS 18, "Methods for tensile testing of metals".

TABLE

TEmpErATurE

TABLE°F

°c

0 to 450

–17.8to 232.2

500

260.0

550

287.8

600

315.6

650

343.3

700

371.1

750

399

800

427

825

441

850

454

875

468

900

482

925

496

950

510

975

524

Max. hydraulic

Test pressure(lbf/in2)

prEssurE (lbf/in2)

H 500 470 445 415 390 360 335 305 290 280 265 250 195 140 80 750 H

J 700 660 620 585 545 505 465 430 410 390 370 350 270 190 110 1,050 J

}

}

40 41

dimensions of plain, Boss and welding neck Forged Flanges (for ratings see Table 1)

B.S.10: 1962

Flange sizedesignation (nom. bore

of pipe)

approx.outside dia.of steel pipe

h1,4

dia.of

Flanged

Boltcircledia.

p

no.of

Boltsn

dia.of

Boltso2

dimensions of Boss dimensions of Steel welding necks

FlangeThickness

Bosslength

a5

dia. at smallend of boss

B5

Max. dia. atroot of boss

e5

dia. at largeend of neck

J

dia. at smallend of neck

k3

Tot. lengthof neck

length ofTaper

23 24.00 31 28 1/2 16 1 – – – – – – – 1 1/8575 610.0 787.4 723.9 25.4 – – – – – – – 28.624 – 32 1/2 29 3/4 16 1 – – – – – – – 1 1/4

600 – 825.5 755.7 25.4 – – – – – – – 31.827 28.00 35 3/4 33 1/4 20 1 – – – – – – – 1 3/8

675 711.0 908.1 844.6 25.4 – – – – – – – 34.929 30.00 38 1/4 35 1/2 20 1 1/8 – – – – – – – 1 5/8

725 762.0 971.6 901.7 28.6 – – – – – – – 41.330 – 39 1/4 36 1/2 20 1 1/8 – – – – – – – 1 5/8

750 – 997.6 927.1 28.6 – – – – – – – 41.333 34.00 43 40 20 1 1/4 – – – – – – – 1 3/4

825 864.0 1092.2 1016.0 31.8 – – – – – – – 44.535 36.00 45 42 24 1 1/4 – – – – – – – 1 7/8

875 914.0 1143.0 1066.8 31.8 – – – – – – – 47.636 – 46 1/4 43 24 1 1/4 – – – – – – – 1 7/8

900 – 1174.7 1092.2 31.8 – – – – – – – 47.639 40.00 49 1/2 46 1/4 24 1 1/4 – – – – – – – 2

975 1016.0 1257.3 1174.7 31.8 – – – – – – – 50.842 43.00 52 1/2 49 1/4 28 1 1/4 – – – – – – – 2 1/8

1000 1092.0 1333.5 1250.9 31.8 – – – – – – – 54.045 – 55 3/4 52 1/2 28 1 1/4 – – – – – – – 2 1/4

1125 – 1416.0 1333.5 31.8 – – – – – – – 57.248 49.00 58 3/4 55 1/2 32 1 1/4 – – – – – – – 2 3/8

1200 1244.6 1492.2 1409.7 31.8 – – – – – – – 60.354 55.00 63 1/4 60 1/4 36 1 1/4 – – – – – – – 2 3/8

1350 1397.0 1600.5 1530.3 31.8 – – – – – – – 60.360 61.00 70 1/4 67 40 1 3/8 – – – – – – – 2 1/2

1500 1498.6 1784.3 1701.8 34.9 – – – – – – – 63.566 67.25 76 1/2 73 1/4 40 1 3/8 – – – – – – – 2 5/8

1650 1701.1 1943.1 1860.5 34.9 – – – – – – – 66.772 73.25 83 79 1/2 44 1 1/2 – – – – – – – 2 7/8

1800 1860.5 2108.2 2019.3 38.1 – – – – – – – 73.078 – 89 1/2 86 44 1 1/2 – – – – – – – 3

1950 – 2273.3 2184.4 38.1 – – – – – – – 76.284 – 96 3/4 92 3/4 44 1 3/4 – – – – – – – 3 1/4

2100 – 2457.4 2355.8 44.5 – – – – – – – 82.696 – 109 1/4 105 1/4 52 1 3/4 – – – – – – – 3 5/8

2700 – 2775.0 2673.4 44.5 – – – – – – – 92.1108 – 121 3/4 117 3/4 56 1 3/4 – – – – – – – 42400 – 3092.5 2965.5 44.5 – – – – – – – 101.6120 – 135 130 1/2 60 2 – – – – – – – 4 1/23000 – 3429.0 3314.7 50.8 – – – – – – – 114.3

notes:

1. (h) For availability of steel pipe sizes, refer to BS 3601, "Steel pipes and tubes for pressure purposes: carbon steel, ordinary duties" and BS 3602 "Steel

pipes and tubes for pressure purposes: carbon steel, high duties". See BS 78.

2. (o) For 1/2" (12.7mm) and 5/8" (15.9mm) bolts, the diameters of the holes shall be 1/16" (1.6mm) larger than the bolts and for 3/4" (19.0mm) bolts and

sizes above the diameters shall be not more than 1/8" (3.2mm) larger than the bolts.

3. (k) The diameters tabulated apply to pipes with outside diameters in accordance with h. For pipes designated by their bores, dimension k shall be such

that the difference between the corresponding diameters k and h is maintained.

4. (h) it is recommended that this size for steel pipes should be avoided wherever possible.

5. (a, B and e) Tapers are not specified but shall be such that the maximum diameters at root of boss are not exceeded.

6. (T) it is impractical to use thicknesses less than 1/2" (12.7mm) except for boss flanges or integral flanges.


B.S.10: 1962


of pipe)


(note 4)h1,4

dia.of

Flanged

Boltcircledia.

p

no.of

Boltsn

dia.of

Boltso2

dimensions of Boss dimensions of Steel welding necksFlange

ThicknessT

Bosslength

a5


B5


e5


J


k3

Tot. lengthof neck

l

length ofTaper

M

1/2 0.840 3 3/4 2 5/8 4 1/2 3/8 1 5/16 1 1/2 1 1/16 7/8 7/8 5/8 3/166

15 21.3 95.3 66.7 12.7 9.5 33.3 38.1 27.0 22.2 22.2 15.9 4.83/4 1.059 4 2 7/8 4 1/2 7/16 1 1/2 1 3/4 1 5/16 1 3/32 7/8 5/8 3/166

20 26.9 101.6 73.0 12.7 11.1 38.1 44.5 33.3 27.8 22.2 15.9 4.81 1.327 4 1/2 3 1/4 4 1/2 7/16 1 7/8 2 1/16 1 11/16 1 3/8 7/8 5/8 3/166

25 33.7 114.3 82.6 12.7 11.1 47.6 52.4 42.9 34.9 22.2 15.9 4.81 1/4 1.669 4 3/4 3 7/16 4 1/2 7/16 2 3/16 2 9/32 1 15/16 1 23/32 1 5/8 1/46

32 42.4 120.6 87.3 12.7 11.1 55.6 57.9 49.2 43.7 25.4 15.9 6.31 1/2 1.900 5 1/4 3 7/8 4 1/2 1/2 2 7/16 2 3/4 2 5/16 1 15/16 1 1/8 3/4 1/46

40 48.3 133.3 98.4 12.7 12.7 61.9 69.9 58.7 49.2 28.6 19.0 6.32 2.375 6 4 1/2 4 5/8 1/2 2 15/16 3 1/8 2 3/4 2 13/32 1 1/8 3/4 5/166

50 60.3 152.4 114.3 15.9 12.7 74.6 79.4 69.9 61.1 28.6 19.0 7.92 1/2 3.000 6 1/2 5 4 5/8 5/8 3 9/16 3 21/32 3 1/4 3 1/32 1 1/4 7/8 5/166

65 76.1 165.1 127.0 15.9 15.9 90.5 92.9 82.6 77.0 31.8 22.2 7.93 3.500 7 1/4 5 3/4 4 5/8 5/8 4 3/16 4 13/32 4 3 17/32 1 3/8 1 3/86

80 88.9 184.1 146.0 15.9 15.9 106.4 111.9 101.6 89.7 34.9 25.4 9.53 1/2 4.000 8 6 1/2 4 5/8 11/16 4 11/16 5 1/8 4 1/2 4 1/16 1 3/8 1 3/86

90 101.6 203.2 165.1 15.9 17.5 119.1 130.2 114.3 103.2 34.9 25.4 9.54 4.500 8 1/2 7 4 5/8 3/4 5 1/4 5 1/2 5 1/8 4 9/16 1 5/8 1 1/4 3/86

100 114.3 215.9 177.8 15.9 19.0 133.3 139.7 130.2 115.9 41.3 31.8 9.55 5.500 10 8 1/4 8 5/8 3/4 6 5/16 6 3/4 6 5 9/16 1 3/4 1 1/4 1/2

125 139.7 254.0 209.5 15.9 19.0 160.3 171.4 152.4 141.3 44.5 31.8 12.76 6.625 11 9 1/4 8 5/8 3/4 7 5/16 7 3/4 7 1/4 6 9/16 1 7/8 1 1/4 1/2

150 168.3 279.4 234.9 15.9 19.0 185.7 196.8 184.1 166.7 47.6 31.8 12.77 7.625 12 10 1/4 8 5/8 7/8 8 3/8 8 3/4 8 1/4 7 23/32 2 1 3/8 1/2

175 193.7 304.8 260.4 15.9 22.2 212.7 222.2 209.5 196.1 50.8 34.9 12.78 8.625 13 1/4 11 1/2 8 5/8 7/8 9 1/2 10 9 1/2 8 23/32 2 1 3/8 1/2

200 219.1 336.6 292.1 15.9 22.2 241.3 254.0 241.3 221.5 50.8 34.9 12.79 9.625 14 1/2 12 3/4 8 5/8 1 10 1/2 11 1/8 10 3/8 9 3/4 2 1/4 2 5/8

225 244.5 368.3 323.9 15.9 25.4 266.7 282.6 263.5 247.6 57.2 50.8 15.910 10.750 16 14 8 3/4 1 1/16 11 3/4 12 3/16 11 1/2 10 7/8 2 1/2 1 1/2 5/8250 273.0 406.4 355.6 19.0 27.0 298.5 309.6 292.1 276.2 63.5 38.1 15.912 12.750 18 16 12 3/4 1 1/8 13 3/4 14 3/16 13 1/2 12 29/32 2 3/4 1 3/4 3/4300 323.9 457.2 406.4 19.0 28.6 349.3 360.4 342.9 327.8 69.9 44.5 19.013 14.000 19 1/4 17 1/4 12 3/4 – – – 15 14 5/32 2 7/8 2 1/8 3/4325 355.6 489.0 438.2 19.0 – – – 381.0 359.6 73.0 54.0 19.014 15.000 20 3/4 18 1/2 12 7/8 – – – 16 15 5/32 2 7/8 2 1/8 7/8350 381.0 527.1 469.9 22.2 – – – 406.4 383.4 73.0 54.0 22.215 16.000 21 3/4 19 1/2 12 7/8 – – – 17 16 3/16 3 2 1/4 7/8375 406.4 552.5 495.3 22.2 – – – 431.8 411.2 76.2 57.2 22.216 – 22 3/4 20 1/2 12 7/8 – – – – – – – 7/8400 – 577.9 520.7 22.2 – – – – – – – 22.217 18.000 24 21 3/4 12 7/8 – – – – – – – 1425 457.0 609.6 552.5 22.2 – – – – – – – 25.418 – 25 1/4 23 12 7/8 – – – – – – – 1450 – 641.4 584.2 22.2 – – – – – – – 25.419 20.000 26 1/2 24 12 7/8 – – – – – – – 1475 508.0 673.1 609.6 22.2 – – – – – – – 25.420 – 27 3/4 25 1/4 16 7/8 – – – – – – – 1 1/8500 – 704.9 641.4 22.2 – – – – – – – 28.621 22.00 29 26 1/2 16 7/8 – – – – – – – 1 1/8525 559.0 736.6 673.1 22.2 – – – – – – – 28.622 – 30 27 1/2 16 1 – – – – – – – 1 1/8550 – 762.0 698.6 25.4 – – – – – – – 28.6

refer to notes on page 39.

flanges – Bs 10 TaBle Dflanges – Bs 10 TaBle D

Product Shortname: “FTD” Product Shortname: “FTD”

42 43


B.S.10: 1962


of pipe)

approx.outside dia.

of steel pipeh1,4

dia.of

Flange

d

Boltcircledia.

p

no.of

Bolts

n

dia.of

Bolts

o2


FlangeThickness

T

Bosslength

a5


B5


e5


J


k3

Tot. lengthof neck

l

length ofTaper

M

14 15.000 20 3/4 18 1/2 12 7/8 – – – 16 15 5/32 2 7/8 2 1/8 1 1/8350 381.0 527.1 469.9 22.2 – – – 406.4 383.4 73.0 54.0 28.615 16.000 21 3/4 19 1/2 12 7/8 – – – 17 16 3/16 3 2 1/4 1 1/4

400 406.4 552.5 495.3 22.2 – – – 431.8 411.2 76.2 57.2 31.816 22 3/4 20 1/2 12 7/8 – – – – – – – 1 1/4

400 577.9 520.7 22.2 – – – – – – – 31.817 18.000 24 21 3/4 12 7/8 – – – – – – – 1 3/8

425 3877.2 609.6 552.5 22.2 – – – – – – – 34.918 25 1/4 23 16 7/8 – – – – – – – 1 3/8

450 641.4 584.2 22.2 – – – – – – – 34.919 20.000 26 1/2 24 16 7/8 – – – – – – – 1 1/2

475 508.0 673.1 609.6 22.2 – – – – – – – 38.120 27 3/4 25 1/4 16 7/8 – – – – – – – 1 1/2

500 704.9 641.4 22.2 – – – – – – – 38.121 22.000 29 26 1/2 16 1 – – – – – – – 1 5/8

525 558.8 736.6 673.1 25.4 – – – – – – – 41.322 30 27 1/2 16 1 – – – – – – – 1 3/4

550 762.0 698.5 25.4 – – – – – – – 44.523 24.000 31 28 1/2 16 1 – – – – – – – 1 3/4

575 609.6 787.4 723.9 25.4 – – – – – – – 44.524 32 1/2 29 3/4 16 1 1/8 – – – – – – – 1 7/8

600 825.5 755.7 28.6 – – – – – – – 47.627 28.000 35 3/4 33 1/4 20 1 1/8 – – – – – – – 2

675 711.2 908.1 844.6 28.6 – – – – – – – 50.829 30.000 38 1/4 35 1/2 20 1 1/4 – – – – – – – 2 1/8

725 762.0 971.6 901.7 31.8 – – – – – – – 54.030 39 1/4 36 1/2 20 1 1/4 – – – – – – – 2 1/8

750 997.6 927.1 31.8 – – – – – – – 54.033 34.000 43 40 20 1 1/4 – – – – – – – 2 1/4

825 863.6 1092.2 1016.0 31.8 – – – – – – – 57.235 36.000 45 42 24 1 1/4 – – – – – – – 2 1/2

875 914.4 1143.0 1066.8 31.8 – – – – – – – 63.536 46 1/4 43 24 1 1/4 – – – – – – – 2 1/2

900 1174.7 1092.2 31.8 – – – – – – – 63.539 40.000 49 1/2 46 1/4 24 1 3/8 – – – – – – – 2 5/8

975 1016.0 1257.3 1174.7 34.9 – – – – – – – 66.742 43.000 52 1/2 49 1/4 28 1 3/8 – – – – – – – 2 3/4

1050 1092.2 1333.5 1250.9 34.9 – – – – – – – 69.945 55 3/4 52 1/2 28 1 3/8 – – – – – – – 3

1125 1416.0 1333.5 34.9 – – – – – – – 76.248 49.000 58 3/4 55 1/2 32 1 3/8 – – – – – – – 3 1/8

1200 1244.6 1492.2 1409.7 34.9 – – – – – – – 79.4

notes:



2. (o) For 1/2" (12.7mm) and 5/8" (15.9mm) bolts, the diameters of the holes shall be 1/16" (1.6mm) larger than the bolts and for 3/4" (19.0mm) bolts and sizes

above the diameters shall be not more than 1/8" (3.2mm) larger than the bolts.

3. (k) The diameters tabulated apply to pipes with outside diameters in accordance with h. For pipes designated by their bores, dimension k shall be such that

the difference between the corresponding diameters k and h is maintained.





B.S.10: 1962


of pipe)


h1,4

dia.of

Flange

d

Boltcircledia.

p

no.of

Bolts

n

dia.of

Bolts

o2


FlangeThickness

T

Bosslength

a5


B5


e5


J


k3

Tot. lengthof neck

l

length ofTaper

M

1/2 0.840 3 3/4 2 5/8 4 1/2 3/8 1 5/16 1 1/2 1 1/16 7/8 7/8 5/8 1/46

15 21.8 95.3 66.7 12.7 9.5 33.3 38.1 27.0 22.2 22.2 15.9 6.3 3/4 1.059 4 2 7/8 4 1/2 7/16 1 1/2 1 3/4 1 5/16 1 3/32 7/8 5/8 1/46

20 26.9 101.6 73.0 12.7 11.1 38.1 44.5 33.3 27.8 22.2 15.9 6.31 1.327 4 1/2 3 1/4 4 1/2 7/16 1 7/8 2 1/16 1 11/16 1 3/8 7/8 5/8 9/326

25 33.7 114.3 82.6 12.7 11.1 47.6 52.4 42.9 34.9 22.2 15.9 7.11 1/4 1.669 4 3/4 3 7/16 4 1/2 7/16 2 3/16 2 9/32 1 15/16 1 23/32 1 5/8 5/166

32 42.4 120.7 87.3 12.7 11.1 55.6 57.0 49.2 43.7 25.4 15.9 7.91 1/2 1.900 5 1/4 3 7/8 4 1/2 1/2 2 7/16 2 3/4 2 5/16 1 15/16 1 1/8 3/4 11/326

40 48.3 133.3 98.4 12.7 12.7 61.9 69.9 58.7 49.2 28.6 19.0 8.72 2.375 6 4 1/2 4 5/8 1/2 2 15/16 3 1/8 2 3/4 2 13/32 1 1/8 3/4 3/86

50 60.3 152.4 114.3 15.9 12.7 74.6 79.4 69.9 61.1 28.6 19.0 9.52 1/2 3.000 6 1/2 5 4 5/8 5/8 3 9/16 3 21/32 3 1/4 3 1/32 1 1/4 7/8 13/326

65 76.1 165.1 127.0 15.9 15.9 90.5 92.9 82.6 77.0 31.8 22.2 10.33 3.500 7 1/4 5 3/4 4 5/8 5/8 4 3/16 4 13/32 4 3 17/32 1 3/8 1 7/166

80 88.9 184.1 146.0 15.9 15.9 106.4 111.9 101.6 89.7 34.9 25.4 11.13 1/2 4.000 8 6 1/2 8 5/8 11/16 4 11/16 5 1/8 4 1/2 4 1/16 1 3/8 1 15/326

90 101.6 203.2 165.1 15.9 17.5 119.1 130.2 114.3 101.2 34.9 25.4 11.94 4.500 8 1/2 7 8 5/8 3/4 5 1/4 5 1/2 5 1/8 4 9/16 1 5/8 1 1/4 1/2

100 114.3 215.9 177.8 15.9 19.0 133.3 139.7 130.2 115.9 41.3 31.8 13.75 5.500 10 8 1/4 8 5/8 3/4 6 5/16 6 3/4 6 5 9/16 1 3/4 1 1/4 9/16

125 139.7 254 209.6 15.9 19.0 160.3 171.4 152.4 141.3 44.5 31.8 14.36 6.625 11 9 1/4 8 3/4 3/4 7 5/16 7 1/2 7 1/4 6 23/32 1 7/8 1 1/4 11/16

150 168.3 279.4 235.0 19.0 19.0 185.7 190.5 184.1 170.7 47.6 31.8 17.57 7.625 12 10 1/4 8 3/4 7/8 8 3/8 8 1/2 8 1/4 7 23/32 2 1 3/8 3/4

175 198.7 304.8 260.3 19.0 22.2 212.7 215.9 209.6 196.1 50.8 34.9 19.08 8.625 13 1/4 11 1/2 8 3/4 7/8 9 1/2 9 13/16 9 1/2 8 23/32 2 1 3/8 3/4

200 219.1 336.6 292.1 19.0 22.2 241.3 233.4 241.3 221.5 50.8 34.9 19.09 9.625 14 1/2 12 3/4 12 3/4 1 10 1/2 10 15/16 10 5/8 9 3/4 2 1/4 1 1/2 15/16

225 244.5 368.2 323.9 19.0 25.4 266.7 271.8 269.9 247.7 57.2 38.1 20.610 10.750 16 14 12 3/4 1 1/16 11 3/4 12 3/16 11 1/2 10 7/8 2 1/2 1 3/4 7/8250 273.0 406.4 355.6 19.0 27.0 298.5 309.6 292.1 276.2 63.5 44.5 22.212 12.750 18 16 12 7/8 1 1/8 13 3/4 13 15/16 13 1/2 12 29/32 2 3/4 2 1300 323.9 457.2 406.4 22.2 28.6 349.3 354.0 342.9 327.8 69.9 50.8 25.413 14.000 19 1/4 17 1/4 12 7/8 – – – 15 14 5/32 2 7/8 2 1/8 1325 355.6 489.0 438.2 22.2 – – – 381.0 359.6 73.0 54.0 25.4

notes:










flanges – Bs 10 TaBle eflanges – Bs 10 TaBle e

Product Shortname: “FTe” Product Shortname: “FTe”

44 45


B.S.10: 1962


of pipe)


h1,4

dia.of

Flanged

Boltcircledia.

p

no.of

Boltsn

dia.of

Boltso2


FlangeThickness

T

Bosslength

a5


B5


e5


J


k3

Tot. lengthof neck

l

length ofTaper

M

14 15.000 21 3/4 19 1/2 16 1 – – – 16 1/4 15 5/32 3 3/8 2 1/2 1 3/8350 381.0 552.5 495.3 25.4 – – – 412.8 383.4 85.7 63.5 34.915 16.000 22 3/4 20 1/2 16 1 – – – 17 1/4 16 3/16 3 3/8 2 1/2 1 1/2

375 406.4 577.9 520.7 25.4 – – – 438.2 411.2 85.7 63.5 38.116 – 24 21 3/4 20 1 – – – – – – – 1 5/8

400 – 609.6 552.5 25.4 – – – – – – – 41.417 18.000 25 1/4 23 20 1 – – – – – – – 1 3/4

425 457.0 641.4 584.2 25.4 – – – – – – – 44.518 – 26 1/2 24 20 1 1/8 – – – – – – – 1 3/4

450 – 673.1 609.6 28.6 – – – – – – – 44.519 20.000 27 3/4 25 1/4 20 1 1/8 – – – – – – – 1 3/4

475 508.0 704.9 641.4 28.6 – – – – – – – 44.520 – 29 26 1/2 24 1 1/8 – – – – – – – 2

500 – 736.6 673.1 28.6 – – – – – – – 50.821 22.000 30 27 1/2 24 1 1/8 – – – – – – – 2

525 559.0 763.0 698.5 28.6 – – – – – – – 50.822 – 31 28 1/2 24 1 1/8 – – – – – – – 2 1/8

550 – 787.4 723.9 28.6 – – – – – – – 54.023 24.000 32 1/2 29 3/4 24 1 1/4 – – – – – – – 2 1/4

575 610.0 825.5 755.7 31.8 – – – – – – – 57.224 – 33 1/2 30 3/4 24 1 1/4 – – – – – – – 2 1/4

600 – 850.9 781.1 31.8 – – – – – – – 57.2

notes:











B.S.10: 1962


of pipe)


h1,4

dia.of

Flanged

Boltcircledia.

p

no.of

Boltsn

dia.of

Boltso2


FlangeThickness

T

Bosslength

a5

dia. at smallend of bxoss

B5


e5


J


k3

Tot. lengthof neck

l

length ofTaper

M

1/2 0.840 3 3/4 2 5/8 4 1/2 3/8 1 5/16 1 1/2 1 1/16 7/8 7/8 5/8 3/86

15 21.3 95.3 66.7 12.7 9.5 33.3 38.1 27.0 22.2 22.2 15.9 9.53/4 1.059 4 2 7/8 4 1/2 7/16 1 1/2 1 3/4 1 5/16 1 3/32 7/8 5/8 3/86

20 26.9 101.6 73.0 12.7 11.1 38.1 44.5 33.3 27.8 22.2 15.9 9.51 1.327 4 3/4 3 7/16 4 5/8 7/16 1 7/8 2 1/16 1 11/16 1 3/8 1 1/8 5/8 3/86

25 33.7 120.6 87.3 15.9 11.1 47.6 52.4 42.9 34.9 28.6 15.9 9.51 1/4 1.669 5 1/4 3 7/8 4 5/8 7/16 2 3/16 2 1/2 2 1/16 1 23/32 1 3/8 3/4 1/2

32 42.4 133.3 98.4 15.9 11.1 71.4 63.5 52.4 43.7 34.9 19.0 12.71 1/2 1.900 5 1/2 4 1/8 4 5/8 1/2 2 7/16 2 3/4 2 5/16 1 15/16 1 3/8 3/4 1/2

40 48.3 139.7 104.8 15.9 12.7 61.9 69.9 58.7 49.2 34.9 19.0 12.72 2.375 6 1/2 5 4 5/8 1/2 2 15/16 3 21/32 2 3/4 2 13/32 1 3/8 3/4 5/8

50 60.3 165.1 127.0 15.9 12.7 74.6 92.9 69.9 61.1 34.9 19.0 15.92 1/2 3.000 7 1/4 5 3/4 8 5/8 5/8 3 9/16 4 13/32 3 3/8 3 1/32 1 1/2 3/4 5/8

65 76.1 184.1 146.0 15.9 15.9 90.5 111.9 85.7 77.0 38.1 19.0 15.93 3.500 8 6 1/2 8 5/8 5/8 4 3/16 5 1/8 4 3 17/32 1 3/4 1 5/8

80 88.9 203.2 165.1 15.9 15.9 106.4 130.2 101.6 89.7 44.5 25.4 15.93 1/2 4.000 8 1/2 7 8 5/8 11/16 4 11/16 5 21/32 4 1/2 4 1/16 1 3/4 1 3/4

90 101.6 215.9 177.8 15.9 17.5 119.1 143.7 114.3 103.2 44.5 25.4 19.04 4.500 9 7 1/2 8 5/8 3/4 5 1/4 6 5 1/8 4 9/16 2 1 1/4 3/4

100 114.3 228.6 190.5 15.9 19.0 133.3 152.4 130.2 115.9 50.8 31.8 19.05 5.500 11 9 1/4 8 3/4 3/4 6 5/16 7 1/2 6 1/4 5 9/16 2 1/4 1 1/2 7/8

125 139.7 279.4 234.9 19.0 19.0 160.3 190.5 158.7 141.3 57.2 38.1 22.26 6.625 12 10 1/4 12 3/4 3/4 7 5/16 8 1/2 7 1/4 6 23/32 2 1/4 1 1/2 7/8

150 168.3 304.8 260.4 19.0 19.0 185.7 215.9 184.1 170.7 57.2 38.1 22.27 7.625 13 1/4 11 1/2 12 3/4 7/8 8 3/8 9 13/16 8 3/8 7 23/32 2 1/4 1 1/2 7/8

175 193.7 336.6 292.1 19.0 22.2 212.7 249.2 212.7 196.1 57.2 38.1 22.28 8.625 14 1/2 12 3/4 12 3/4 7/8 9 1/2 11 9 1/2 8 23/32 2 5/8 1 3/4 1

200 219.1 368.3 323.9 19.0 22.2 241.3 279.4 241.3 221.5 66.7 44.5 25.49 9.625 16 14 12 7/8 1 10 1/2 11 15/16 10 5/8 9 3/4 2 7/8 2 1 1/8

225 244.5 406.4 355.6 22.2 25.4 266.7 303.2 269.9 247.6 73.0 50.8 28.610 10.750 17 15 12 7/8 1 1/16 11 3/4 12 15/16 11 3/4 10 7/8 2 7/8 2 1 1/8

250 273.0 451.8 381.0 22.2 27.0 298.5 328.6 298.5 276.2 73.0 50.8 28.612 12.750 19 1/4 17 1/4 16 7/8 1 1/8 13 3/4 15 3/16 13 7/8 12 29/32 3 1/8 2 1/4 1 1/4

300 323.9 489.0 438.2 22.2 28.6 349.3 385.8 352.4 327.8 79.4 57.2 31.813 14.000 20 3/4 18 1/2 16 1 – – – 15 1/4 14 5/32 3 3/8 2 1/2 1 3/8325 355.6 529.1 469.9 25.4 – – – 387.4 359.6 85.7 63.5 34.9

notes:










flanges – Bs 10 TaBle fflanges – Bs 10 TaBle f

Product Shortname: “FTF”Product Shortname: “FTF”

46 47

dimensions of plain, Boss and welding neck Forged Flanges (for ratings see Table 1 & 2)

B.S.10: 1962


of pipe)


h1,4

dia.of

Flanged

Boltcircledia.

p

no.of

Boltsn

dia.of

Boltso2


FlangeThickness

T

Bosslength

a5


B5


e5


J


k3

Tot. lengthof neck

l

length ofTaper

M

dia. ofraisedFace

F

1/2 0.840 4 1/2 3 1/4 4 5/8 3/8 1 5/16 1 7/8 1 3/16 7/8 1 1/8 5/8 2 1/4 1/215 21.8 114.3 82.6 15.9 9.5 33.3 47.6 30.2 22.2 28.6 15.9 57.2 12.73/4 1.059 4 1/2 3 1/4 4 5/8 7/16 1 1/2 1 7/8 1 3/8 1 3/32 1 1/8 5/8 2 1/4 1/220 26.9 114.3 82.6 15.9 11.1 38.1 47.6 34.9 27.8 28.6 15.9 57.2 12.71 1.327 4 3/4 3 7/16 4 5/8 7/16 1 7/8 2 1/16 1 11/16 1 3/8 1 1/8 5/8 2 1/2 9/16

25 33.7 120.7 87.3 15.9 11.1 47.6 52.4 42.9 34.9 28.6 15.9 63.5 14.31 1/4 1.669 5 1/4 3 7/8 4 5/8 7/16 2 3/16 2 1/2 2 1/16 1 23/32 1 3/8 3/4 3 11/16

32 42.4 133.4 98.4 15.9 11.1 55.6 63.5 52.4 43.7 34.9 19.0 76.2 17.51 1/2 1.900 5 1/2 4 1/8 4 5/8 1/2 2 7/16 2 3/4 2 5/16 1 15/16 1 3/8 3/4 3 1/4 11/16

40 48.3 139.7 104.8 15.9 12.7 61.9 69.9 58.7 49.2 34.9 19.0 82.6 17.52 2.375 6 1/2 5 4 5/8 1/2 2 15/16 3 21/32 2 3/4 2 13/32 1 3/8 3/4 4 3/4

50 60.3 165.1 127.0 15.9 12.7 74.6 92.9 69.9 61.1 34.9 19.0 101.6 19.02 1/2 3.000 7 1/4 5 3/4 8 5/8 5/8 3 9/16 4 13/32 3 3/8 3 1/32 1 1/2 3/4 4 1/2 3/4

65 76.1 184.1 146.0 15.9 15.9 90.5 111.9 85.7 77.0 38.1 19.0 114.3 19.03 3.500 8 6 1/2 8 5/8 5/8 4 3/16 5 1/8 4 3 17/32 1 3/4 1 5 7/8

80 88.9 203.2 165.1 15.9 15.9 106.4 130.2 101.6 89.7 44.5 25.4 127.0 22.23 1/2 4.000 8 1/2 7 8 5/8 11/16 4 11/16 5 21/32 4 1/2 4 1/16 1 3/4 1 5 1/2 7/8

90 101.6 215.9 177.8 15.9 17.5 119.1 143.7 114.3 103.2 44.5 25.4 139.7 22.24 4.500 9 7 1/2 8 5/8 3/4 5 1/4 6 5 1/8 4 9/16 2 1 1/4 6 1

100 114.3 228.6 190.5 15.9 19.0 133.3 152.4 130.2 115.9 50.8 31.8 152.4 25.45 5.500 11 9 1/4 8 3/4 3/4 6 5/16 7 1/2 6 1/4 5 9/16 2 1/4 1 1/2 7 1 1/8

125 139.7 279.4 235.0 19.0 19.0 160.3 190.5 158.8 141.3 57.2 38.1 177.8 28.66 6.625 12 10 1/4 12 3/4 3/4 7 5/16 8 1/2 7 1/4 6 23/32 2 1/4 1 1/2 8 1/4 1 1/18

150 168.3 304.8 260.3 19.0 19.0 185.7 215.9 184.2 170.7 57.2 38.1 209.6 28.67 7.625 13 1/4 11 1/2 12 3/4 7/8 8 3/8 9 13/16 8 3/8 7 23/32 2 1/4 1 1/2 9 1/4 1 1/4

175 193.7 336.6 292.1 19.0 22.2 212.7 249.2 212.7 196.1 57.2 38.1 235.0 31.88 8.625 14 1/2 12 3/4 12 3/4 7/8 9 1/2 11 9 1/2 8 23/32 2 5/8 1 3/4 10 1/4 1 1/4

200 219.1 368.3 323.9 19.0 22.2 241.3 279.4 241.3 221.5 66.7 44.5 260.4 31.89 9.625 16 14 12 7/8 1 10 1/2 11 15/16 10 5/8 9 3/4 2 7/8 2 11 1/4 1 3/8

225 244.5 406.4 355.6 22.2 25.4 266.7 287.3 269.9 247.7 73.0 50.6 285.6 34.910 10.750 17 15 12 7/8 1 1/16 11 3/4 12 15/16 11 3/4 10 7/8 2 7/8 2 12 1/4 1 3/8

250 273.0 431.8 381.0 22.2 27.0 298.5 328.6 298.5 276.2 73.0 50.8 311.2 34.912 12.750 19 1/4 17 1/4 16 7/8 1 1/8 13 3/4 15 3/16 13 7/8 12 29/32 3 1/8 2 1/4 14 1/4 1 5/8

300 323.9 489.0 438.2 22.2 28.6 349.3 385.8 352.4 327.8 79.4 57.2 362.0 41.313 14.000 20 3/4 18 1/2 16 1 – – – 15 1/4 14 5/32 3 3/8 2 1/2 15 1/2 1 3/4

325 355.6 527.1 469.9 25.4 – – – 387.4 359.6 85.7 63.5 393.7 44.514 15.000 21 3/4 19 1/2 16 1 – – – 16 1/4 15 5/32 3 3/8 2 1/2 16 1/2 1 7/8

350 381.0 552.5 495.3 25.4 – – – 412.8 383.4 85.7 63.5 419.1 47.615 16.000 22 3/4 20 1/2 16 1 – – – 17 1/4 16 3/16 3 3/8 2 1/2 17 1/2 2

375 406.4 577.9 520.7 25.4 – – – 438.2 411.2 85.7 63.5 444.5 50.816 24 21 3/4 20 1 – – – – – – – 19 2 1/8

400 609.6 552.5 25.4 – – – – – – – 482.6 54.017 18.000 25 1/4 23 20 1 – – – – – – – 20 2 1/4

425 457.0 641.4 584.2 25.4 – – – – – – – 508.0 57.218 26 1/2 24 20 1 1/8 – – – – – – – 21 2 3/8

450 673.1 609.6 28.6 – – – – – – – 533.4 60.319 20.000 27 3/4 25 1/4 20 1 1/8 – – – – – – – 22 1/2 2 1/2

475 508.0 704.9 641.4 28.6 – – – – – – – 571.5 63.520 29 26 1/2 24 1 1/8 – – – – – – – 23 1/2 2 5/8

500 736.6 673.1 28.6 – – – – – – – 596.9 66.721 22.000 30 27 1/2 24 1 1/8 – – – – – – – 24 1/2 2 3/4

525 559.0 762.0 698.5 28.6 – – – – – – – 622.3 69.922 31 28 1/2 24 1 1/8 – – – – – – – 25 1/2 2 3/4

550 787.4 723.9 28.6 – – – – – – – 647.7 69.923 24.000 32 1/2 29 3/4 24 1 1/4 – – – – – – – 26 1/2 3

575 610.0 825.5 755.7 31.8 – – – – – – – 673.1 76.224 – 33 1/2 30 3/4 24 1 1/4 – – – – – – – 27 1/2 3

600 – 850.9 781.1 31.8 – – – – – – – 698.5 76.2

dimensions of plain, Boss and welding neck Forged Flanges (for ratings see Table 1 & 2)

B.S.10: 1962


of pipe)


h1,4

dia.of

Flanged

Boltcircledia.

p

no.of

Boltsn

dia.of

Boltso2


FlangeThickness

T

Bosslength

a5


B5


e5


J


k3

Tot. lengthof neck

l

length ofTaper

M

dia. ofraisedFace

F

1/2 0.840 4 1/2 3 1/4 4 5/8 3/8 1 5/16 1 7/8 1 3/16 7/8 1 1/8 5/8 2 1/4 5/815 21.8 114.3 82.6 15.9 9.5 33.3 47.6 30.2 22.2 28.6 15.9 57.2 15.93/4 1.059 4 1/2 3 1/4 4 5/8 7/16 1 1/2 1 7/8 1 3/8 1 3/32 1 1/8 5/8 2 1/4 5/820 26.9 114.3 82.6 15.9 11.1 38.1 47.6 34.9 27.8 28.6 15.9 57.2 15.91 1.327 4 3/4 3 7/16 4 5/8 7/16 1 7/8 2 1/16 1 11/16 1 3/8 1 1/8 5/8 2 1/2 3/4

25 33.7 120.7 87.3 15.9 11.1 47.6 52.4 42.9 34.9 28.6 15.9 63.5 19.01 1/4 1.669 5 1/4 3 7/8 4 5/8 7/16 2 3/16 2 1/2 2 1/16 1 23/32 1 3/8 3/4 3 3/4

32 42.4 133.4 98.4 15.9 11.1 55.6 63.5 52.4 43.7 34.9 19.0 76.2 19.01 1/2 1.900 5 1/2 4 1/8 4 5/8 1/2 2 7/16 2 3/4 2 5/16 1 15/16 1 3/8 3/4 3 1/4 7/8

40 48.3 139.7 104.8 15.9 12.7 61.9 69.9 58.7 49.2 34.9 19.0 82.6 22.22 2.375 6 1/2 5 4 3/4 1/2 2 15/16 3 7/16 2 3/4 2 13/32 1 3/8 3/4 4 1

50 60.3 165.1 127.0 19.0 12.7 74.6 87.3 69.9 61.1 34.9 19.0 101.6 25.42 1/2 3.000 7 1/4 5 3/4 8 3/4 5/8 3 9/16 4 3/16 3 3/8 3 1/32 1 1/2 3/4 4 1/2 1

65 76.1 184.1 146.0 19.0 15.9 90.5 106.4 85.7 77.0 38.1 19.0 114.3 25.43 3.500 8 6 1/2 8 3/4 5/8 4 3/16 4 15/16 4 3 17/32 1 3/4 1 5 1 1/4

80 88.9 203.2 165.1 19.0 15.9 106.4 125.4 101.6 89.7 44.5 25.4 127.0 31.83 1/2 4.000 8 1/2 7 8 3/4 11/16 4 11/16 5 7/16 4 1/2 4 1/16 1 3/4 1 5 1/2 1 1/4

90 101.6 215.9 177.8 19.0 17.5 119.1 138.9 114.3 103.2 44.5 25.4 139.7 31.84 4.500 9 7 1/2 8 3/4 3/4 5 1/4 5 13/16 5 1/8 4 9/16 2 1 1/4 6 1 3/8

100 114.3 228.6 190.5 19.0 19.0 133.3 147.6 130.2 115.9 50.8 31.8 152.4 34.95 5.500 11 9 1/4 8 7/8 3/4 6 5/16 7 11/32 6 1/4 5 9/16 2 1/4 1 1/2 7 1 1/2

125 139.7 279.4 235.0 22.2 19.0 160.3 186.5 158.8 141.3 57.2 38.1 177.8 38.16 6.625 12 10 1/4 12 7/8 3/4 7 5/16 8 11/32 7 1/4 6 23/32 2 1/4 1 1/2 8 1/4 1 1/2

150 168.3 304.8 260.3 22.2 19.0 185.7 211.9 184.2 170.7 57.2 38.1 209.6 38.17 7.625 13 1/4 11 1/2 12 7/8 – – – 8 3/8 7 23/32 2 1/4 1 1/2 9 1/4 1 5/8

175 193.7 336.6 292.1 22.2 – – – 212.7 196.1 57.2 38.1 235.0 41.38 8.625 14 1/2 12 3/4 12 7/8 – – – 9 1/2 8 23/32 2 5/8 1 3/4 10 1/4 1 5/8

200 219.1 368.3 323.9 22.2 – – – 241.3 221.5 66.7 44.5 260.4 41.39 9.625 16 14 12 1 – – – 10 5/8 9 3/4 2 7/8 2 11 1/4 1 3/4

225 244.5 406.4 355.6 25.4 – – – 269.9 247.7 73.0 50.8 285.6 44.510 10.750 17 15 12 1 – – – 11 3/4 10 7/8 2 7/8 2 12 1/4 1 7/8

250 273.0 431.8 381.0 25.4 – – – 298.5 276.2 73.0 50.8 311.2 47.612 12.750 19 1/4 17 1/4 16 1 – – – 13 7/8 12 29/32 3 1/8 2 1/4 14 1/4 2

300 323.9 489.0 438.3 25.4 – – – 352.4 327.8 79.4 57.2 362.0 50.813 14.000 20 3/4 18 1/2 16 1 1/8 – – – 15 1/4 14 5/32 3 3/8 2 1/2 15 1/2 2 1/8

325 355.6 527.1 469.9 28.6 – – – 387.4 359.6 85.7 63.5 393.7 54.014 15.000 21 3/4 19 1/2 16 1 1/8 – – – 16 1/4 15 5/32 3 3/8 2 1/2 16 1/2 2 1/4

350 381.0 552.5 495.3 28.6 – – – 412.8 383.4 85.7 63.5 419.1 57.215 16.000 22 3/4 20 1/2 16 1 1/8 – – – 17 1/4 16 3/16 3 3/8 2 1/2 17 1/2 2 3/8

375 406.4 577.9 520.7 28.6 – – – 438.2 411.2 85.7 63.5 444.5 60.316 24 21 3/4 20 1 1/8 – – – – – – – 19 2 1/2

400 641.4 584.2 28.6 – – – – – – – 482.6 63.517 18.000 25 1/4 23 20 1 1/8 – – – – – – – 20 2 5/8

425 457.0 673.1 609.6 28.6 – – – – – – – 508.0 66.718 – 26 1/2 24 20 1 1/4 – – – – – – – 21 2 3/4

450 704.9 641.4 31.8 533.4 69.919 20.000 27 3/4 25 1/4 20 1 1/4 – – – – – – – 22 1/2 2 7/8

475 508.0 736.6 673.1 31.8 571.5 73.020 – 29 26 1/2 24 1 1/4 – – – – – – – 23 1/2 3 1/8

500 609.6 552.5 28.6 596.9 79.421 22.000 30 27 1/2 24 1 1/4 – – – – – – – 24 1/2 3 1/4

525 559.0 762.0 698.5 31.8 622.3 82.622 – 31 28 1/2 24 1 1/4 – – – – – – – 25 1/2 3 3/8

550 787.4 723.9 31.8 647.7 85.723 24.000 32 1/2 29 3/4 24 1 3/8 – – – – – – – 26 1/2 3 1/2

575 610.0 825.5 755.7 34.9 673.1 88.924 – 33 1/2 30 3/4 24 1 3/8 – – – – – – – 27 1/2 3 5/8

600 850.9 781.1 34.9 698.5 92.1

flanges – Bs 10 TaBle Jflanges – Bs 10 TaBle h

Product Shortname: “FTH” Product Shortname: “FTJ”

48 49

Table d Table e Table F Table h Table J1/2" 1/2 3/4 1 1/4 2 1/2 2 3/415 0.23 0.34 0.57 1.13 1.25

3/4" 3/4 1 1 1/2 2 1/2 2 3/420 0.34 0.45 0.68 1.13 1.251" 1 1 1/4 2 3 3 3/425 0.45 0.57 0.91 1.36 1.70

1 1/4" 1 1/2 1 3/4 3 4 4 1/432 0.68 0.79 1.36 1.81 1.93

1 1/2" 1 3/4 2 1/4 3 1/2 4 1/2 5 1/240 0.79 1.02 1.59 2.04 2.492" 2 1/2 3 5 3/4 6 1/4 9 1/450 1.13 1.36 2.61 2.83 4.20

2 1/2" 3 3 3/4 7 8 1/4 11 1/265 1.36 1.70 3.18 3.74 5.223" 4 5 8 3/4 11 1/2 16 1/480 1.81 2.27 3.97 5.22 7.37

3 1/2" 5 6 10 1/2 13 1790 2.27 2.72 4.76 5.90 7.714" 5 3/4 7 12 16 21 1/2

100 2.61 3.18 5.44 7.26 9.755" 9 3/4 10 1/2 20 26 32 1/2

125 4.42 4.76 9.07 11.79 14.746" 11 3/4 16 1/2 24 29 37

150 5.33 7.48 10.89 13.15 16.787" 12 1/2 21 30 37 –

175 5.67 9.53 13.61 16.78 –8" 16 1/2 22 35 43 –

200 7.48 9.98 15.88 19.50 –9" 23 29 44 60 –

225 10.43 13.15 19.96 27.22 –10" 25 1/2 34 48 64 –250 11.57 15.42 21.77 29.03 –12" 34 45 76 90 –300 15.42 20.41 34.47 40.82 –

Table d Table e Table F Table h Table J1/2” 1/2 1/2 2 2 3 1/415 .23 .23 .91 .91 1.47

3/4” 3/4 3/4 2 3 3 1/420 .34 .34 .91 1.36 1.471” 1 1/4 1 1/4 3 3 1/2 3 1/225 .57 .57 1.36 1.59 1.59

1 1/4” 1 3/4 2 3 1/2 4 4 1/432 .79 .91 1.59 1.81 1.93

1 1/2” 2 2 1/2 4 4 1/4 640 .91 1.13 1.81 1.93 2.722” 2 1/2 3 4 1/2 9 950 1.13 1.36 2.04 4.08 4.08

2 1/2” 3 3 1/2 7 14 1765 1.36 1.59 3.18 6.35 7.713” 5 6 10 19 2380 2.27 2.72 4.54 8.62 10.43

3 1/2” 6 7 13 27 3290 2.72 3.18 5.90 12.25 14.524” 7 8 16 40 46

100 3.18 3.63 7.26 18.14 20.875” 11 1/4 13 24 67 76

125 5.10 5.90 10.89 30.39 34.476” 15 19 27 72 81

150 6.80 8.62 12.25 32.66 36.747” 18 24 32 75 –

175 8.16 10.89 14.52 34.02 8” 22 26 44 87 –

200 9.98 11.79 19.96 39.46 9” 34 39 64 100 –

225 15.42 17.69 29.03 45.36 10” 43 49 68 120 –250 19.50 22.23 30.84 54.4312” 63 73 108 180 –300 28.58 33.11 48.99 81.65

flanges – Bs 10 approXIMaTe WeIghTs

Blind


Slip–on

Figures on orange lines are imperial Units (pounds) while those figures on white lines are Metric Units (kilograms). Figures on orange lines are imperial Units (pounds) while those figures on white lines are Metric Units (kilograms).

50 51

Welding Neck


Table d Table e Table F Table h Table J1/2" 1 1 1 1/4 2 1/4 315 0.45 0.45 0.57 1.02 1.36

3/4" 1 1 1 1/2 2 1/4 3 1/220 0.45 0.45 0.68 1.02 1.591" 1 1/2 1 1/2 2 1/4 3 1/2 3 3/425 0.68 0.68 1.02 1.59 1.70

1 1/4" 1 1/2 1 3/4 3 1/4 5 1/2 632 0.68 0.79 1.47 2.49 2.72

1 1/2" 2 1/4 2 3/4 4 6 1/2 740 1.02 1.25 1.81 2.95 3.182" 3 1/2 3 3/4 6 7 950 1.59 1.70 2.72 3.18 4.08

2 1/2" 3 3/4 4 8 11 3/4 1365 1.70 1.81 3.63 5.33 5.903" 5 6 9 12 1/4 1780 2.27 2.72 4.08 5.56 7.71

3 1/2" 5 1/2 6 1/2 12 20 2390 2.49 2.95 5.44 9.07 10.434" 9 13 1/4 16 25 32

100 4.08 6.01 7.26 11.34 14.515" 13 14 1/2 21 28 46

125 5.90 6.58 9.53 12.70 20.876" 14 16 25 30 55

150 6.35 7.26 11.34 13.61 24.957" 16 21 33 49 –

175 7.26 9.53 14.97 22.23 – 8" 22 26 42 70 –

200 9.98 11.79 19.05 31.75 – 9" 31 41 52 82 –

225 14.06 18.60 23.59 37.19 – 10" 34 50 64 95 – 250 15.42 22.68 29.03 43.09 – 12" 56 62 85 140 – 300 25.40 28.12 38.56 63.50 –

Figures on orange lines are imperial Units (pounds) while those figures on white lines are Metric Units (kilograms).

noTes

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