Flange - Lap Joint, ANSI Class 2500, B16.5 (in)
This datasheet is for lap joint flanges that have a flat face connection.
- Dimensions to 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.
- 1/4" raised face is not included in dimension "C" and "M".
Pipe Size
(NPS) | Outside Diameter of Flange
A | Thickness of Flange
C | Diameter of Bore
F | Diameter of Hub at Base
J | Length of Hub
M | Radius
| Number of Bolt Holes
NBH | Diameter of Bolt Holes
DBH | Bolt Circle Diameter
P | Approx Weight
(lb)AW |
---|---|---|---|---|---|---|---|---|---|---|
1/2 | 5 1/4 | 1 3/16 | 0.90 | 1 11/16 | 1 9/16 | 1/8 | 4 | 7/8 | 3 1/2 | 7 |
3/4 | 5 1/2 | 1 1/4 | 1.11 | 2 | 1 11/16 | 1/8 | 4 | 7/8 | 3 3/4 | 8 |
1 | 6 1/4 | 1 3/8 | 1.38 | 2 1/4 | 1 7/8 | 1/8 | 4 | 1 | 4 1/4 | 12 |
1 1/4 | 7 1/4 | 1 1/2 | 1.72 | 2 7/8 | 2 1/16 | 3/16 | 4 | 1 1/8 | 5 1/8 | 17 |
1 1/2 | 8 | 1 3/4 | 1.97 | 3 1/8 | 2 3/8 | 1/4 | 4 | 1 1/4 | 5 3/4 | 24 |
2 | 9 1/4 | 2 | 2.46 | 3 3/4 | 2 3/4 | 5/16 | 8 | 1 1/8 | 6 3/4 | 37 |
2 1/2 | 10 1/2 | 2 1/4 | 2.97 | 4 1/2 | 3 1/8 | 5/16 | 8 | 1 1/4 | 7 3/4 | 53 |
3 | 12 | 2 5/8 | 3.60 | 5 1/4 | 3 5/8 | 3/8 | 8 | 1 3/8 | 9 | 80 |
3 1/2 | - | - | - | - | - | - | - | - | - | - |
4 | 14 | 3 | 4.60 | 6 1/2 | 4 1/4 | 7/16 | 8 | 1 5/8 | 10 3/4 | 122 |
5 | 16 1/2 | 3 5/8 | 5.69 | 8 | 5 1/8 | 7/16 | 8 | 1 7/8 | 12 3/4 | 204 |
6 | 19 | 4 1/4 | 6.75 | 9 1/4 | 6 | 1/2 | 8 | 2 1/8 | 14 1/2 | 314 |
8 | 21 3/4 | 5 | 8.75 | 12 | 7 | 1/2 | 12 | 2 1/8 | 17 1/4 | 471 |
10 | 26 1/2 | 6 1/2 | 10.92 | 14 3/4 | 9 | 1/2 | 12 | 2 5/8 | 21 1/4 | 897 |
12 | 30 | 7 1/4 | 12.92 | 17 3/8 | 10 | 1/2 | 12 | 2 7/8 | 24 3/8 | 1262 |