Threaded Flanges
Class 2500
| Nominal size | O | C | R | X | Y | T | Q | No. of holes | Diam. of holes | Diam. of bolts | Diam. of bolt circle | Approx. weight pounds Kg | |
| O | C | R | X | Y | T | Q | |||||||
| in. | 1/2″ | 5.25 | 1.19 | 1.38 | 1.69 | 1.56 | 1.12 | 0.93 | 4 | 0.88 | 3/4″ | 3.5 | 7 |
| mm. | 133.4 | 30.2 | 35.1 | 42.9 | 39.6 | 28.4 | 23.6 | 22.4 | 19.1 | 88.9 | 3 | ||
| in. | 3/4″ | 5.5 | 1.25 | 1.69 | 2 | 1.69 | 1.25 | 1.14 | 4 | 0.88 | 3/4″ | 3.75 | 8 |
| mm. | 139.7 | 31.8 | 42.9 | 50.8 | 42.9 | 31.8 | 29 | 22.4 | 19.1 | 95.3 | 4 | ||
| in. | 1″ | 6.25 | 1.38 | 2 | 2.25 | 1.88 | 1.38 | 1.41 | 4 | 1 | 7/8″ | 4.25 | 11 |
| mm. | 158.8 | 35.1 | 50.8 | 57.2 | 47.8 | 35.1 | 35.8 | 25.4 | 22.2 | 108 | 5 | ||
| in. | 1 1/4″ | 7.25 | 1.5 | 2.5 | 2.88 | 2.06 | 1.5 | 1.75 | 4 | 1.12 | 1″ | 5.12 | 16 |
| mm. | 184.2 | 38.1 | 63.5 | 73.2 | 52.3 | 38.1 | 44.5 | 28.4 | 25.4 | 130 | 7 | ||
| in. | 1 1/2″ | 8 | 1.75 | 2.88 | 3.12 | 2.38 | 1.75 | 1.99 | 4 | 1.25 | 1 1/8″ | 5.75 | 22 |
| mm. | 203.2 | 44.5 | 73.2 | 79.2 | 60.5 | 44.5 | 50.5 | 31.8 | 28.6 | 146.1 | 10 | ||
| in. | 2″ | 9.25 | 2 | 3.62 | 3.75 | 2.75 | 2 | 2.5 | 8 | 1.12 | 1″ | 6.75 | 38 |
| mm. | 235 | 50.8 | 91.9 | 95.3 | 69.9 | 50.8 | 63.5 | 28.4 | 25.4 | 171.5 | 17 | ||
| in. | 2 1/2″ | 10.5 | 2.25 | 4.12 | 4.5 | 3.12 | 2.25 | 3 | 8 | 1.25 | 1 1/8″ | 7.75 | 55 |
| mm. | 266.7 | 57.2 | 104.6 | 114.3 | 79.2 | 57.2 | 76.2 | 31.8 | 28.6 | 196.9 | 25 |