ANSI B16.5 Class 2500 Threaded Flanges
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- All dimensions are in inches
- These flanges will be furnished with a 1/4″ raised face unless otherwise specified.
(Size Chart)
| Nominal Pipe Size | Outside Diameter (O) | Bolt Circle (W) | Raised Face Diameter (R) | Number of Holes | Diameter of Holes | Hub Diameter (X) | Thickness (T) | Length Thru Hub (Y) | Approximate Weight (lbs) |
|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 5.25 | 3.50 | 1.38 | 4 | 0.88 | 1.69 | 1.19 | 1.56 | 7 |
| 3/4 | 5.50 | 3.75 | 1.69 | 4 | 0.88 | 2.00 | 1.25 | 1.69 | 8 |
| 1 | 6.25 | 4.25 | 2.00 | 4 | 1.00 | 2.25 | 1.38 | 1.88 | 11 |
| 1 1/4 | 7.25 | 5.12 | 2.50 | 4 | 1.13 | 2.88 | 1.50 | 2.06 | 16 |
| 1 1/2 | 8.00 | 5.75 | 2.88 | 4 | 1.25 | 3.12 | 1.75 | 2.38 | 22 |
| 2 | 9.25 | 6.75 | 3.62 | 8 | 1.13 | 3.75 | 2.00 | 2.75 | 38 |
| 2 1/2 | 10.50 | 7.75 | 4.12 | 8 | 1.25 | 4.50 | 2.25 | 3.12 | 55 |