Flange – Socket, ANSI Class 400, ASME B16.5, 1/4″ Raised Face (in)
- Dimensions and tolerances in accordance with ANSI/ASME B16.5 for sizes 1/2″ to 24″.
- Carbon steel forgings in accordance with ASTM A105.
- Bolt circle diameters are 1/8 inch larger than bolt diameter.
| Pipe Size(NPS) | OutsideDiameter of Flange A | Diameterof Raised Face B | Thicknessof Flange C | Diameterof Bore D | Diameterof Bore E | Depthof Socket G | Diameterof Hub at Base J | Lengthof Hub L | Numberof Bolt Holes | Diameterof Bolt Holes | BoltCircle Diameter P | Approx.Weight |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 3 3/4 | 1 3/8 | 9/16 | 0.55 | 0.88 | 3/8 | 1 1/2 | 7/8 | 4 | 5/8 | 2 5/8 | 3 |
| 3/4 | 4 5/8 | 1 11/16 | 5/8 | 0.74 | 1.09 | 7/16 | 1 7/8 | 1 | 4 | 3/4 | 3 1/4 | 3 |
| 1 | 4 7/8 | 2 | 11/16 | 0.92 | 1.36 | 1/2 | 2 1/8 | 1 1/16 | 4 | 3/4 | 3 1/2 | 4 |
| 1 1/4 | 5 1/4 | 2 1/2 | 13/16 | 1.28 | 1.70 | 9/16 | 2 1/2 | 1 1/8 | 4 | 3/4 | 3 7/8 | 6 |
| 1 1/2 | 6 1/8 | 2 7/8 | 7/8 | 1.50 | 1.95 | 5/8 | 2 3/4 | 1 1/4 | 4 | 7/8 | 4 1/2 | 7 |
| 2 | 6 1/2 | 3 5/8 | 1 | 1.94 | 2.44 | 11/16 | 3 5/16 | 1 7/16 | 8 | 3/4 | 5 | 9 |
| 2 1/2 | 7 1/2 | 4 1/8 | 1 1/8 | 2.32 | 2.94 | 3/4 | 3 15/16 | 1 5/8 | 8 | 7/8 | 5 7/8 | 13 |
| 3 | 8 1/4 | 5 | 1 1/4 | 2.90 | 3.57 | 13/16 | 4 5/8 | 1 13/16 | 8 | 7/8 | 6 5/8 | 16 |
| 3 1/2 | 9 | 5 1/2 | 1 3/8 | 3.36 | 4.07 | 7/8 | 5 1/4 | 1 15/16 | 8 | 1 | 7 1/4 | 21 |
| 4 | 10 | 6 3/16 | 1 3/8 | 3.83 | 4.57 | 15/16 | 5 3/4 | 2 | 8 | 1 | 7 7/8 | 26 |