Pipe Components 2011 - Van Leeuwen Buizen

Pipe components - Flanges as per ASME B16 - welding neck flanges
Forged welding neck flanges 300 lbs STD
Nominal
diameter inch
D
mm
d1
mm
I.D.
mm
b
mm
g
mm
k
mm
h
mm
Number of
holes
1/2” 95.2 21.3 15.8 14.2 35.1 66.7 52.3 4 15.9
3/4” 117.5 26.7 20.9 15.7 42.9 82.5 57.2 4 19
1” 123.8 33.4 26.6 17.5 50.8 88.9 62 4 19
1.1/4” 133.3 42.2 35 19.1 63.5 98.4 65 4 19
1.1/2” 155.6 48.3 40.9 20.6 73.2 114.3 68.3 4 22.2
2” 165.1 60.3 52.5 22.4 91.9 127 69.9 8 19
2.1/2” 190.5 73.1 62.7 25.4 104.6 149.2 76.2 8 22.2
3” 209.5 88.9 77.9 28.4 127 168.3 79.2 8 22.2
4” 254 114.3 102.3 31.8 157.2 200 85.9 8 22.2
5” 279.4 141.3 128.1 35.1 185.7 234.9 98.6 8 22.2
6” 317.5 168.3 154.1 36.6 215.9 269.9 98.6 12 22.2
8” 381 219.1 202.7 41.1 269.7 330.2 111.3 12 25.4
10” 444.5 273 254.5 47.8 323.9 387.3 117.3 16 28.6
12” 520.7 323.9 304.8 50.8 381 450.8 130 16 31.7
14” 584.2 355.6 336.5 53.8 412.8 514.3 142.7 20 31.7
16” 647.7 406.4 387.3 57.2 469.9 571.5 146.1 20 34.9
18” 711.2 457.2 438.1 60.5 533.4 628.6 158.8 24 34.9
20” 774.7 508 488.9 63.5 584.2 685.8 162.1 24 34.9
24” 914.4 609.6 590.5 69.9 692.2 812.8 168.1 24 41.3
106 No part of this publication may be multiplied or copied without previous written permission of Van Leeuwen Pipe and Tube
L
mm