900 LB. FLANGES

Normal
pipe
size		 Outside
dia. of
flange		 Minimum
thickness of
flange		 Overall Length Bolt
Circle		 No. and 
Size of 
Holes		 O.D. of
raised
face
Welding neck Slip-on
& 
socket 
welding		 Lap Joint
O Q Y Diam. No. dia. R
1/2 121 22.3 60.3 31.8 31.8 82.5 4 22 35
3/4 130 25.4 69.8 34.9 34.9 89.0 4 22 43
1 149 28.6 78.0 41.3 41.3 101.5 4 25 51
1-1/4 159 28.6 78.0 41.3 41.3 111.0 4 25 64
1-1/2 178 31.8 82.6 44.4 44.4 124.0 4 29 78
2 216 38.1 101.6 57.2 57.2 165.0 8 25 92
2-1/2 244 41.3 104.8 63.5 63.5 190.5 8 29 105
8 241 38.1 101.6 54.0 54.0 190.5 8 25 127
3-1/2
4 292 44.5 114.3 69.8 69.8 235.0 8 32 157
5 349 50.8 127.0 79.4 79.4 279.5 8 35 186
6 381 55.6 189.7 85.7 85.7 317.5 12 32 216
8 470 68.5 161.9 101.8 114.3 393.5 12 38 270
10 546 69.9 184.2 108.0 127.0 470.0 16 38 324
12 610 79.4 200.0 117.5 142.9 533.5 20 38 381
14 584 54.0 142.9 76.2 111.1 514.5 20 32 413
16 711 60.4 158.8 88.9 130.2 628.5 24 35 533
20 775 63.5 161.9 95.2 139.7 686.0 24 35 584
24 914 69.9 168.3 106.4 152.4 843.0 24 41 692