Flange - Lap Joint, ANSI Class 300, 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 | 3 3/4 | 9/16 | 0.90 | 1 1/2 | 7/8 | 1/8 | 4 | 5/8 | 2 5/8 | 3 |
3/4 | 4 5/8 | 5/8 | 1.11 | 1 7/8 | 1 | 1/8 | 4 | 3/4 | 3 1/4 | 3 |
1 | 4 7/8 | 11/16 | 1.38 | 2 1/8 | 1 1/16 | 1/8 | 4 | 3/4 | 3 1/2 | 3 |
1 1/4 | 5 1/4 | 3/4 | 1.72 | 2 1/2 | 1 1/16 | 3/16 | 4 | 3/4 | 3 7/8 | 4 |
1 1/2 | 6 1/8 | 13/16 | 1.97 | 2 3/4 | 1 3/16 | 1/4 | 4 | 7/8 | 4 1/2 | 6 |
2 | 6 1/2 | 7/8 | 2.46 | 3 5/16 | 1 5/16 | 5/16 | 8 | 3/4 | 5 | 7 |
2 1/2 | 7 1/2 | 1 | 2.97 | 3 15/16 | 1 1/2 | 5/16 | 8 | 7/8 | 5 7/8 | 10 |
3 | 8 1/4 | 1 1/8 | 3.60 | 4 5/8 | 1 11/16 | 3/8 | 8 | 7/8 | 6 5/8 | 13 |
3 1/2 | 9 | 1 3/16 | 4.10 | 5 1/4 | 1 3/4 | 3/8 | 8 | 7/8 | 7 1/4 | 17 |
4 | 10 | 1 1/4 | 4.60 | 5 3/4 | 1 7/8 | 7/16 | 8 | 7/8 | 7 7/8 | 22 |
5 | 11 | 1 3/8 | 5.69 | 7 | 2 | 7/16 | 8 | 7/8 | 9 1/4 | 28 |
6 | 12 1/2 | 1 7/16 | 6.75 | 8 1/8 | 2 1/16 | 1/2 | 12 | 7/8 | 10 5/8 | 39 |
8 | 15 | 1 5/8 | 8.75 | 10 1/4 | 2 7/16 | 1/2 | 12 | 1 | 13 | 58 |
10 | 17 1/2 | 1 7/8 | 10.92 | 12 5/8 | 3 3/4 | 1/2 | 16 | 1 1/8 | 15 1/4 | 91 |
12 | 20 1/2 | 2 | 12.92 | 14 3/4 | 4 | 1/2 | 16 | 1 1/4 | 17 3/4 | 139 |
14 | 23 | 2 1/8 | 14.18 | 16 3/4 | 4 3/8 | 1/2 | 20 | 1 1/4 | 20 1/4 | 189 |
16 | 25 1/2 | 2 1/4 | 16.19 | 19 | 4 3/4 | 1/2 | 20 | 1 3/8 | 22 1/2 | 240 |
18 | 28 | 2 3/8 | 18.20 | 21 | 5 1/8 | 1/2 | 24 | 1 3/8 | 24 3/4 | 305 |
20 | 30 1/2 | 2 1/2 | 20.25 | 23 1/8 | 5 1/2 | 1/2 | 24 | 1 3/8 | 27 | 375 |
22 | 33 | 2 5/8 | 22.25 | 25 1/4 | 5 3/4 | 1/2 | 24 | 1 5/8 | 29 1/4 | 435 |
24 | 36 | 2 3/4 | 24.25 | 27 5/8 | 6 | 1/2 | 24 | 1 5/8 | 32 | 530 |