ASME B16.5 Class 2500 Threaded Flange Dimension
| Nominal Pipe Size | A | B | C | D | E | F | G | H | I | J |
| inch | mm | mm | mm | mm | mm | mm | mm | mm | Holes | mm | mm |
| 1/2 | 21.30 | 133.4 | 23.60 | 30.20 | 39.60 | 28.40 | 42.90 | 35.10 | 4 | 22.40 | 88.90 |
| 3/4 | 26.70 | 139.7 | 29.00 | 31.75 | 42.90 | 31.75 | 50.80 | 42.90 | 4 | 22.40 | 95.30 |
| 1 | 33.40 | 158.8 | 35.80 | 35. 10 | 47.80 | 35.10 | 57.15 | 50.80 | 4 | 25.40 | 108 |
| 11/4 | 42.20 | 1.842 | 44.50 | 38. 10 | 52.30 | 38.10 | 73.15 | 63.50 | 4 | 28.40 | 130 |
| 11/2 | 48.30 | 203.2 | 50.50 | 44.50 | 60.45 | 44.50 | 79.25 | 73.15 | 4 | 31.75 | 146.1 |
| 2 | 60.30 | 235.0 | 63.50 | 50.80 | 69.85 | 50.80 | 95.30 | 91.90 | 8 | 28.40 | 171.5 |
| 21/2 | 73.00 | 266.7 | 76.20 | 57. 15 | 79.25 | 57.15 | 114.3 | 104.6 | 8 | 31.75 | 196.9 |
15 8 月, 2025