(a)All dimensions are in inches.
(b)These flanges will be furnished with a 1/4″ raised face unless otherwise specified. For more alternate flange facings, please click here!
| Nominal Pipe Size | Outside Diameter (O) | Bolt Circle (W) | Raised Face Diameter (R) | Number of Holes | Diameter of Holes | Thickness (T) | Approximate Weight (lbs) |
|---|---|---|---|---|---|---|---|
| 1/2 | 5.25 | 3.50 | 1.38 | 4 | 0.88 | 1.19 | 7 |
| 3/4 | 5.50 | 3.75 | 1.69 | 4 | 0.88 | 1.25 | 8 |
| 1 | 6.25 | 4.25 | 2.00 | 4 | 1.00 | 1.38 | 11 |
| 1 1/4 | 7.25 | 5.12 | 2.50 | 4 | 1.13 | 1.50 | 17 |
| 1 1/2 | 8.00 | 5.75 | 2.88 | 4 | 1.25 | 1.75 | 23 |
| 2 | 9.25 | 6.75 | 3.62 | 8 | 1.13 | 2.00 | 39 |
| 2 1/2 | 10.50 | 7.75 | 4.12 | 8 | 1.25 | 2.25 | 56 |
| 3 | 12.00 | 9.00 | 5.00 | 8 | 1.38 | 2.62 | 86 |
| 4 | 14.00 | 10.75 | 6.19 | 8 | 1.63 | 3.00 | 135 |
| 5 | 16.50 | 12.75 | 7.31 | 8 | 1.88 | 3.62 | 225 |
| 6 | 19.00 | 14.50 | 8.50 | 8 | 2.13 | 4.25 | 345 |
| 8 | 21.75 | 17.25 | 10.62 | 12 | 2.13 | 5.00 | 530 |
| 10 | 26.50 | 21.25 | 12.75 | 12 | 2.63 | 6.50 | 1025 |
| 12 | 30.00 | 24.38 | 15.00 | 12 | 2.88 | 7.25 | 1300 |