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ASME/ANSI B16.5 Class 150 TH

Nominal Pipe Size  Outside Diameter of Flange Diameter of Raised Face Thickness of Flanges Min. Diameter of Hub Length Through Hub Thread Length Threaded Min. Bore Diameter of Bolt Circle Diameter of Bolt Holes Number of Bolts Approximate Weight kgs
NPS O R tf X Y T B W I n 　
1/2 90 34.9 9.6 30 14 16 22.2 60.3 15.9 4 0.41
3/4 100 42.9 11.2 38 14 16 27.7 69.9 15.9 4 0.59
1 110 50.8 12.7 49 16 17 34.5 79.4 15.9 4 0.82
1 1/4 115 63.5 14.3 59 19 21 43.2 88.9 15.9 4 0.99
1 1/2 125 73.0 15.9 65 21 22 49.5 98.4 15.9 4 1.28
2 150 92.1 17.5 78 24 25 61.9 120.7 19.1 4 2.01
2 1/2 180 104.8 20.7 90 27 29 74.6 139.7 19.1 4 3.41
3 190 127.0 22.3 108 29 30 90.7 152.4 19.1 4 3.88
3 1/2 215 139.7 22.3 122 30 32 103.4 177.8 19.1 8 4.80
4 230 157.2 22.3 135 32 33 116.1 190.5 19.1 8 5.45
5 255 185.7 22.3 164 35 36 143.8 215.9 22.2 8 6.22
6 280 215.9 23.9 192 38 40 170.7 241.3 22.2 8 7.57
8 345 269.9 27.0 246 43 44 221.5 298.5 22.2 8 12.42
10 405 323.8 28.6 305 48 49 276.2 362.0 25.4 12 16.47
12 485 381.0 30.2 365 54 56 327.0 431.8 25.4 12 26.80
14 535 412.8 33.4 400 56 57 359.2 476.3 28.6 12 35.21
16 595 469.9 35.0 457 62 64 410.5 539.8 28.6 16 44.61
18 635 533.4 38.1 505 67 68 461.8 577.9 31.8 16 49.19
20 700 584.2 41.3 559 71 73 513.1 635.0 31.8 20 62.62
24 815 692.2 46.1 663 81 83 616.0 749.3 34.9 20 88.23


Basic requirements for Material and Fitting

Requirements are valid for normal case, in special case you have to contact the technical department.

Slip-On Flanges, SO Flange
Common flange types
Anchor flange
Specialty flange
150LB Carbon steel forged flange
Material Grades
Custom pipe flanges can be manufactured from a wide variety of materials and material grades.



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