ASME/ANSI B16.5 Class 600 WN

Nominal Pipe Size  Outside Diameter of Flange Diameter of Raised Face Thickness of Flanges Min. Diameter of Hub Hub Diameter Beginning of Chamfer Length Through Hub Bore Diameter of Bolt Circle Diameter of Bolt Holes Number of Bolts Approxi-mate Weight kgs
NPS O R tf X A Y B W I n 　
1/2 95 34.9 14.3 38 21.3 52 15.8 66.7 15.9 4 0.87
3/4 115 42.9 15.9 48 26.7 57 21.0 82.6 19.1 4 1.41
1 125 50.8 17.5 54 33.4 62 26.6 88.9 19.1 4 1.86
1 1/4 135 63.5 20.7 64 42.2 67 35.1 98.4 19.1 4 2.56
1 1/2 155 73.0 22.3 70 48.3 70 40.9 114.3 22.2 4 3.50
2 165 92.1 25.4 84 60.3 73 52.5 127.0 19.1 8 4.35
2 1/2 190 104.8 28.6 100 73.0 79 62.7 149.2 22.2 8 6.39
3 210 127.0 31.8 117 88.9 83 77.9 168.3 22.2 8 8.55
3 1/2 230 139.7 35.0 133 101.6 86 90.1 184.2 25.4 8 10.82
4 275 157.2 38.1 152 114.3 102 102.3 215.9 25.4 8 17.59
5 330 185.7 44.5 189 141.3 114 128.2 266.7 28.6 8 29.02
6 355 215.9 47.7 222 168.3 117 154.1 292.1 28.6 12 34.34
8 420 269.9 55.6 273 219.1 133 202.7 349.2 31.8 12 52.92
10 510 323.8 63.5 343 273.0 152 254.5 431.8 34.9 16 87.07
12 560 381.0 66.7 400 323.8 156 304.7 489.0 34.9 20 104.05
14 605 412.8 69.9 432 355.6 165 336.5 527.0 38.1 20 123.50
16 685 469.9 76.2 495 406.4 178 387.3 603.2 41.3 20 170.46
18 745 533.4 82.6 546 457.0 184 437.9 654.0 44.5 20 206.34
20 815 584.2 88.9 610 508.0 190 488.9 723.9 44.5 24 257.41
24 940 692.2 101.6 718 610.0 203 590.9 838.2 50.8 24 359.14