ASME B16.5 Class 150 Lap Joint Flange Dimension
| Nominal Pipe Size | A | B | C | D | R | F | H | I | J |
| inch | mm | mm | mm | mm | mm | mm | mm | Holes | mm | mm |
| 1/2 | 21.30 | 88.90 | 22.90 | 11.20 | 15.70 | 3.000 | 30.20 | 4 | 15.70 | 60.45 |
| 3/4 | 26.70 | 98.60 | 28.2 | 12.70 | 15.70 | 3.000 | 38.10 | 4 | 15.70 | 69.85 |
| 1 | 33.40 | 108.0 | 35. 10 | 14.20 | 17.50 | 3.000 | 49.30 | 4 | 15.70 | 79.25 |
| 11/4 | 42.20 | 117.3 | 43.70 | 15.70 | 20.60 | 4.800 | 58.70 | 4 | 15.70 | 88.90 |
| 11/2 | 48.30 | 127.0 | 50.00 | 17.50 | 22.40 | 6.400 | 65.00 | 4 | 15.70 | 98.60 |
| 2 | 60.30 | 152.4 | 62.50 | 19. 10 | 25.40 | 7.900 | 77.70 | 4 | 19.10 | 120.7 |
| 21/2 | 73.00 | 177.8 | 75.40 | 22.40 | 28.40 | 7.900 | 90.40 | 4 | 19.10 | 139.7 |
| 3 | 88.90 | 190.5 | 91.40 | 23.90 | 30.20 | 9.700 | 108.0 | 4 | 19.10 | 152.4 |
| 31/2 | 101.6 | 215.9 | 104.1 | 23.90 | 31.75 | 9.700 | 122.2 | 8 | 19.10 | 177.8 |
| 4 | 114.3 | 228.6 | 116.8 | 23.90 | 33.30 | 11.20 | 134.9 | 8 | 19.10 | 190.5 |
| 5 | 141.3 | 254.0 | 114.5 | 23.90 | 36.60 | 11.20 | 163.6 | 8 | 22.40 | 215.9 |
| 6 | 168.3 | 279.4 | 171.5 | 25.40 | 39.6 | 12.70 | 192.0 | 8 | 22.40 | 241.3 |
| 8 | 219. 1 | 342.9 | 222.3 | 28.40 | 44.50 | 12.70 | 246. 1 | 8 | 22.40 | 298.5 |
| 10 | 273.0 | 406.4 | 277.4 | 30.20 | 49.30 | 12.70 | 304.8 | 12 | 25.40 | 362.0 |
| 12 | 323.8 | 482.6 | 328.2 | 31.75 | 55.60 | 12.70 | 365.3 | 12 | 25.40 | 431.8 |
| 14 | 355.6 | 533.4 | 360.2 | 35. 10 | 79.25 | 12.70 | 400. 1 | 12 | 28.40 | 476.3 |
| 16 | 406.4 | 596.9 | 411.2 | 36.60 | 87.40 | 12.70 | 457.2 | 16 | 28.4 | 539.8 |
| 18 | 457.2 | 635.0 | 462.3 | 39.60 | 96.80 | 12.70 | 505.0 | 16 | 31.75 | 577.9 |
| 20 | 508.0 | 698.5 | 514.4 | 42.90 | 103.1 | 12.70 | 558.8 | 20 | 31.75 | 635.0 |
| 24 | 609.6 | 812.8 | 616.0 | 47.80 | 111.3 | 12.70 | 663.4 | 20 | 35.10 | 749.3 |
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