| DIMENSIONS OF CLASS 150 FLANGES (ANSI B 16.5) (in mm) | ||||||||||||||||
| Nominal Pipe Size |
Flange Dia ‘O’ |
Dia of Bolt Circle ‘A’ |
Dia of Bolt Holes ‘D’ |
No. of Holes |
Thickness of Flange ‘C’ |
Diameter at Weld Bevel | Dia of Hub ‘E’ |
Length Through Hub | Bore ‘B’ | Dia of R/F R |
Depth of Socket F |
Length of Threading |
||||
| S/O & S/W Y |
W/N Y |
L/J Y |
S/O & S/W B |
L/J B |
||||||||||||
| 1/2” | 15 | 88.9 | 60.3 | 15.9 | 4 | 11.1 | 21.3 | 30.2 | 15.9 | 47.6 | 15.9 | 22.3 | 22.9 | 34.9 | 9.5 | 15.9 |
| 3/4” | 20 | 98.4 | 69.8 | 15.9 | 4 | 12.7 | 26.7 | 38.1 | 15.9 | 52.4 | 15.9 | 27.7 | 28.2 | 42.9 | 11.1 | 15.9 |
| 1” | 25 | 107.9 | 79.4 | 15.9 | 4 | 14.3 | 33.5 | 49.2 | 17.5 | 55.6 | 17.5 | 34.5 | 35.0 | 50.8 | 12.7 | 17.5 |
| 1 ¼” | 32 | 117.5 | 88.9 | 15.9 | 4 | 15.9 | 42.2 | 58.7 | 20.6 | 57.1 | 20.6 | 43.2 | 43.7 | 63.5 | 14.3 | 20.6 |
| 1 ½” | 40 | 127.0 | 98.4 | 15.9 | 4 | 17.5 | 48.3 | 65.1 | 22.2 | 61.9 | 22.2 | 49.5 | 50.0 | 73.0 | 15.9 | 22.2 |
| 2” | 50 | 152.4 | 120.6 | 19.0 | 4 | 19.0 | 60.4 | 77.8 | 25.4 | 63.5 | 25.4 | 62.0 | 62.5 | 92.1 | 17.5 | 25.4 |
| 2 ½” | 65 | 177.8 | 139.7 | 19.0 | 4 | 22.2 | 73.1 | 90.5 | 28.6 | 69.8 | 28.6 | 74.7 | 75.4 | 104.8 | 19.0 | 28.6 |
| 3” | 80 | 190.5 | 152.4 | 19.0 | 4 | 23.8 | 88.9 | 107.9 | 30.2 | 69.8 | 30.2 | 90.7 | 91.4 | 127.0 | 20.6 | 30.2 |
| 3 ½” | 90 | 216.0 | 177.8 | 19.0 | 8 | 23.8 | 101.6 | 122.2 | 31.7 | 71.4 | 31.7 | 103.4 | 104.1 | 140.0 | 20.6 | 31.7 |
| 4” | 100 | 228.6 | 190.5 | 19.0 | 8 | 23.8 | 114.3 | 134.9 | 33.3 | 76.2 | 33.3 | 116.1 | 116.8 | 157.2 | 23.8 | 33.3 |
| 5” | 125 | 254.0 | 215.9 | 22.2 | 8 | 23.8 | 141.2 | 163.5 | 36.5 | 88.9 | 36.5 | 143.8 | 144.5 | 185.7 | 23.8 | 36.5 |
| 6” | 150 | 279.4 | 241.3 | 22.2 | 8 | 25.4 | 168.4 | 192.1 | 39.7 | 88.9 | 39.7 | 170.7 | 171.4 | 215.9 | 27.0 | 39.7 |
| 8” | 200 | 342.9 | 298.4 | 22.2 | 8 | 28.6 | 219.2 | 246.1 | 44.4 | 101.6 | 44.4 | 221.5 | 222.2 | 269.9 | 31.7 | 44.4 |
| 10” | 250 | 406.4 | 361.9 | 25.4 | 12 | 30.2 | 273.0 | 304.8 | 49.2 | 101.6 | 49.2 | 276.3 | 277.4 | 323.8 | 33.3 | 49.2 |
| 12” | 300 | 482.6 | 431.8 | 25.4 | 12 | 31.8 | 323.8 | 365.1 | 55.6 | 114.3 | 55.6 | 327.1 | 328.2 | 381.0 | 39.7 | 55.6 |
| 14” | 350 | 533.4 | 476.2 | 28.6 | 12 | 34.9 | 355.6 | 400.0 | 57.1 | 127.0 | 79.4 | 359.1 | 360.2 | 412.7 | 41.3 | 57.1 |
| 16” | 400 | 596.9 | 539.7 | 28.6 | 16 | 36.5 | 406.4 | 457.2 | 63.5 | 127.0 | 87.3 | 410.5 | 411.2 | 469.9 | 44.4 | 63.5 |
| 18” | 450 | 635.0 | 577.8 | 31.7 | 16 | 39.7 | 457.2 | 504.8 | 68.3 | 139.7 | 96.8 | 461.8 | 462.3 | 533.4 | 49.2 | 68.3 |
| 20” | 500 | 698.5 | 635.0 | 31.7 | 20 | 42.9 | 508.0 | 558.8 | 73.0 | 144.5 | 103.2 | 513.1 | 514.3 | 584.2 | 54.0 | 73.0 |
| 24” | 600 | 812.8 | 749.3 | 34.9 | 20 | 47.6 | 609.6 | 663.6 | 82.5 | 152.4 | 111.1 | 615.9 | 615.9 | 692.1 | 63.5 | 82.5 |
INDUSTRIAL FLANGE