ASME/ANSI B16.5 Class 900 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 Counter-bore Threaded Flange, Min., Diameter of Bolt Circle Diameter of Bolt Holes Number of Bolts Approxi-mate Weight kgs
NPS O R tf X Y T B Q W I n  
1/2 120 34.9 22.3 38 32 23 22.2 23.6 82.6 22.2 4 1.73
3/4 130 42.9 25.4 44 35 26 27.7 29.0 88.9 22.2 4 2.33
1 150 50.8 28.6 52 41 29 34.5 35.8 101.6 25.4 4 3.48
1 1/4 160 63.5 28.6 64 41 31 43.2 44.4 111.1 25.4 4 4.00
1 1/2 180 73.0 31.8 70 44 32 49.5 50.3 123.8 28.6 4 5.54
2 215 92.1 38.1 105 57 39 61.9 63.5 165.1 25.4 8 9.79
2 1/2 245 104.8 41.3 124 64 48 74.6 76.2 190.5 28.6 8 13.82
3 240 127.0 38.1 127 54 42 90.7 92.2 190.5 25.4 8 11.51
4 290 157.2 44.5 159 70 48 116.1 117.6 235.0 31.8 8 19.52
5 350 185.7 50.8 190 79 54 143.8 144.4 279.4 34.9 8 32.14
6 380 215.9 55.6 235 86 58 170.7 171.4 317.5 31.8 12 41.04
8 470 269.9 63.5 298 102 64 221.5 222.2 393.7 38.1 12 70.97
10 545 323.8 69.9 368 108 72 276.2 276.2 469.9 38.1 16 100.32
12 610 381.0 79.4 419 117 77 327.0 328.6 533.4 38.1 20 133.26
14 640 412.8 85.8 451 130 83 359.2 360.4 558.8 41.3 20 152.57
16 705 469.9 88.9 508 133 86 410.5 411.2 616.0 44.5 20 185.15
18 785 533.4 101.6 565 152 89 461.8 462.0 685.8 50.8 20 256.28
20 855 584.2 108.0 622 159 93 513.1 512.8 749.3 54.0 20 315.13
24 1040 692.2 139.7 749 203 102 616.0 614.4 901.7 66.7 20 603.79

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 material grades.



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