Pipe Components 2011 - Van Leeuwen Buizen

Nominal
diameter inch
Pipe components - Flanges as per ASME B16 - welding neck flanges
Forged welding neck flanges 150 lbs Sched 30 / 40 / 80 / 160
D
mm
d1
mm
I.D.
mm
b
mm
g
mm
Welding neck flanges 150 lbs Sched 30
k
mm
h
mm
Number of
holes
8” 342.9 219.1 205 28.4 269.7 298.4 101.6 8 22.2
10” 406.4 273 257.5 30.2 323.8 361.9 101.6 12 25.4
12” 482.6 323.9 307.1 31.8 381 431.8 114.3 12 25.4
18” 635 457.2 434.9 39.6 533.4 577.9 139.7 16 31.8
24” 812.8 609.6 581.1 47.8 692.2 749.3 152.4 20 34.9
Welding neck flanges 150 lbs Sched 40
12” 482.6 323.9 303.2 31.8 381 431.8 114.3 12 25.4
14” 533.4 355.6 333.3 35.1 412.8 476.2 127 12 28.4
Welding neck flanges 150 lbs Sched 80
10” 406.4 273 242.9 30.2 323.9 361.9 101.6 12 25.4
12” 482.6 323.9 288.9 31.8 381 431.8 114.3 12 25.4
14” 533.4 355.6 317.5 35.1 412.8 476.2 127 12 28.4
16” 596.9 406.4 363.5 36.6 469.9 539.7 127 16 28.4
18” 635 457.2 409.5 39.6 533.4 577.8 139.7 16 31.8
20” 698.5 508 455.6 42.9 584.2 635 144.5 20 31.8
24” 812.8 609.6 547.7 47.8 692.2 749.3 152.4 20 35.1
Welding neck flanges 150 lbs Sched 160
1/2” 88.9 21.3 11.8 11.2 34.9 60.3 47.8 4 15.9
3/4” 98.4 26.7 15.6 12.7 42.9 69.8 52.3 4 15.9
1” 107.9 33.4 20.7 14.2 50.8 79.4 55.6 4 15.9
1.1/2” 127 48.3 34 17.5 73 98.4 61.9 4 15.9
2” 152.4 60.3 42.8 19.1 92.1 120.6 63.5 4 19
3” 190.5 88.9 66.6 23.9 127 152.4 69.8 4 19
4” 228.6 114.3 87.3 23.9 157.2 190.5 76.2 8 19
6” 279.4 168.3 131.8 25.4 215.9 241.3 88.9 8 22.4
8” 342.9 219.1 173.1 28.4 269.7 298.5 101.6 8 22.4
10” 406.4 273 215.9 30.2 323.9 362 101.6 12 25.4
No part of this publication may be multiplied or copied without previous written permission of Van Leeuwen Pipe and Tube 105
L
mm