ASME/ ANSI B16.5 Standard
| NOMINAL PIPE SIZE | OUTSIDE DIA.(MM) | DIA. OF BORE | THICKNESS MIN (MM) | LENGTH THRU HUB (MM) | RADIUS OF FILLER (MM) | DIA. AT BASE OF HUB(MM) | NUMBER OF BOLT HOLES | DIA. OF BOLT HOLES(MM) | DIA. OF BOLT CIRCLE (MM) | APPROX WEIGHT (KG) |
|---|---|---|---|---|---|---|---|---|---|---|
| D | do | t | H | X | M | h | C | |||
| 1/2" | 120.6 | 22.9 | 22.3 | 31.7 | 3.0 | 38.1 | 4 | 22.3 | 82.5 | 1.8 |
| 3/4" | 130.0 | 28.2 | 25.4 | 35.0 | 3.0 | 44.4 | 4 | 22.3 | 88.9 | 2.3 |
| 1" | 149.3 | 35.0 | 28.4 | 41.1 | 3.0 | 52.3 | 4 | 25.4 | 101.6 | 3.4 |
| 1.1/4" | 158.7 | 43.7 | 28.4 | 41.1 | 4.8 | 63.5 | 4 | 25.4 | 111.2 | 3.9 |
| 1.1/2" | 177.8 | 50.0 | 31.7 | 44.4 | 6.4 | 69.8 | 4 | 28.4 | 123.9 | 5.3 |
| 2" | 215.9 | 62.5 | 38.1 | 57.1 | 7.8 | 104.6 | 8 | 25.4 | 165.1 | 10 |
| 2.1/2" | 244.3 | 75.4 | 41.1 | 63.5 | 7.8 | 123.9 | 8 | 28.4 | 190.5 | 14 |
| 3" | 266.7 | 91.4 | 47.7 | 73.1 | 9.6 | 133.3 | 8 | 31.7 | 203.2 | 18 |
| 4" | 311.1 | 116.8 | 53.8 | 90.4 | 11.1 | 162.0 | 8 | 35.0 | 241.3 | 28 |
| 5" | 374.6 | 144.5 | 73.1 | 104.6 | 11.1 | 196.8 | 8 | 41.1 | 292.1 | 52 |
| 6" | 399.7 | 171.4 | 82.5 | 119.1 | 12.7 | 228.6 | 12 | 38.1 | 317.5 | 62 |
| 8" | 482.6 | 222.2 | 91.9 | 142.7 | 12.7 | 292.1 | 12 | 44.4 | 393.7 | 105 |
| 10" | 584.2 | 277.4 | 107.9 | 177.8 | 12.7 | 368.3 | 12 | 50.8 | 482.6 | 179 |
| 12" | 673.1 | 328.2 | 123.9 | 218.9 | 12.7 | 450.8 | 16 | 53.8 | 571.5 | 269 |
| 14′ | 749.3 | 360.2 | 133.3 | 241.3 | 12.7 | 495.3 | 16 | 60.4 | 635.0 | 365 |
| 16" | 825.5 | 411.2 | 146.0 | 260.3 | 12.7 | 552.4 | 16 | 66.5 | 704.8 | 459 |
| 18" | 914.4 | 462.3 | 162.0 | 276.2 | 12.7 | 569.9 | 16 | 73.1 | 774.7 | 598 |
| 20" | 984.2 | 514.3 | 177.8 | 292.1 | 12.7 | 641.3 | 16 | 79.2 | 831.8 | 712 |
| 24" | 1168.4 | 615.9 | 203.2 | 330.2 | 12.7 | 762.0 | 16 | 91.9 | 990.6 | 1090 |