Flange - Blind, ANSI Class 300, B16.5, RF (in) | |||||||
|---|---|---|---|---|---|---|---|
| Pipe Size
(NPS) | Outside Diameter of Flange
A | Diameter of Raised Face
B | Thickness of Flange
C | Number of Bolt Holes
NBH | Diameter of Bolt Holes
DBH | Bolt Circle Diameter
P | Approx Weight
(lb) AW |
| 1/2 | 3 3/4 | 1 3/8 | 9/16 | 4 | 5/8 | 2 5/8 | 2 |
| 3/4 | 4 5/8 | 1 11/16 | 5/8 | 4 | 3/4 | 3 1/4 | 3 |
| 1 | 4 7/8 | 2 | 11/16 | 4 | 3/4 | 3 1/2 | 4 |
| 1 1/4 | 5 1/4 | 2 1/2 | 3/4 | 4 | 3/4 | 3 7/8 | 6 |
| 1 1/2 | 6 1/8 | 2 7/8 | 13/16 | 4 | 7/8 | 4 1/2 | 7 |
| 2 | 6 1/2 | 3 5/8 | 7/8 | 8 | 3/4 | 5 | 8 |
| 2 1/2 | 7 1/2 | 4 1/8 | 1 | 8 | 7/8 | 5 7/8 | 12 |
| 3 | 8 1/4 | 5 | 1 1/8 | 8 | 7/8 | 6 5/8 | 16 |
| 3 1/2 | 9 | 5 1/2 | 1 3/16 | 8 | 7/8 | 7 1/4 | 21 |
| 4 | 10 | 6 3/16 | 1 1/4 | 8 | 7/8 | 7 7/8 | 27 |
| 5 | 11 | 7 5/16 | 1 3/8 | 8 | 7/8 | 9 1/4 | 35 |
| 6 | 12 1/2 | 8 1/2 | 1 7/16 | 12 | 7/8 | 10 5/8 | 50 |
| 8 | 15 | 10 5/8 | 1 5/8 | 12 | 1 | 13 | 81 |
| 10 | 17 1/2 | 12 3/4 | 1 7/8 | 16 | 1 1/8 | 15 1/4 | 127 |
| 12 | 20 1/2 | 15 | 2 | 16 | 1 1/4 | 17 3/4 | 184 |
| 14 | 23 | 16 1/4 | 2 1/8 | 20 | 1 1/4 | 20 1/4 | 235 |
| 16 | 25 1/2 | 18 1/2 | 2 1/4 | 20 | 1 3/8 | 22 1/2 | 307 |
| 18 | 28 | 21 | 2 3/8 | 24 | 1 3/8 | 24 3/4 | 390 |
| 20 | 30 1/2 | 23 | 2 1/2 | 24 | 1 3/8 | 27 | 492 |
| 22 | 33 | 25 1/4 | 2 5/8 | 24 | 1 5/8 | 29 1/4 | 594 |
| 24 | 36 | 27 1/4 | 2 3/4 | 24 | 1 5/8 | 32 | 754 |
- This datasheet is for blind flanges that have a raised face connection.
- Dimensions per ASME B16.5 - Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard
- Bolt circle diameters are 1/8 inch larger than bolt diameter.
