Flange - Weld Neck, ANSI Class 150, B16.5 RTJ (in)
- 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.
Pipe Size
(NPS) | Outside Diameter of Flange
A | Thickness of Flange
C | Diameter of Bore
D | Diameter of Hub at Weld
H | Diameter of Hub at Base
J | Length of Hub
K | Diameter of Raised Face
T | Diameter of Groove
U | Groove Width
W | Groove Depth
X | Number of Bolt Holes
| Diameter of Bolt Holes
| Bolt Circle Diameter
P |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1/2 | - | - | - | - | - | - | - | - | - | - | - | - | - |
3/4 | - | - | - | - | - | - | - | - | - | - | - | - | - |
1 | 4 1/4 | 1/2 | 1.049 | 1.315 | 1 15/16 | 2 3/16 | 2 1/2 | 1 7/8 | 11/32 | 1/4 | 4 | 5/8 | 3 1/8 |
1 1/4 | 4 5/8 | 9/16 | 1.380 | 1.660 | 2 5/16 | 2 1/4 | 2 7/8 | 2 1/4 | 11/32 | 1/4 | 4 | 5/8 | 3 1/2 |
1 1/2 | 5 | 5/8 | 1.610 | 1.900 | 2 9/16 | 2 7/16 | 3 1/4 | 2 9/16 | 11/32 | 1/4 | 4 | 5/8 | 3 7/8 |
2 | 6 | 11/16 | 2.067 | 2.375 | 3 1/16 | 2 1/2 | 4 | 3 1/4 | 11/32 | 1/4 | 4 | 3/4 | 4 3/4 |
2 1/2 | 7 | 13/16 | 2.469 | 2.875 | 3 9/16 | 2 3/4 | 4 3/4 | 4 | 11/32 | 1/4 | 4 | 3/4 | 5 1/2 |
3 | 7 1/2 | 7/8 | 3.068 | 3.500 | 4 1/4 | 2 3/4 | 5 1/4 | 4 1/2 | 11/32 | 1/4 | 4 | 3/4 | 6 |
3 1/2 | 8 1/2 | 7/8 | 3.548 | 4.00 | 4 13/16 | 2 13/16 | 6 1/16 | 5 3/16 | 11/32 | 1/4 | 8 | 3/4 | 7 |
4 | 9 | 7/8 | 4.026 | 4.500 | 5 5/16 | 3 | 6 3/4 | 5 7/8 | 11/32 | 1/4 | 8 | 3/4 | 7 1/2 |
5 | 10 | 7/8 | 5.047 | 5.563 | 6 7/16 | 3 1/2 | 7 5/8 | 6 3/4 | 11/32 | 1/4 | 8 | 7/8 | 8 1/2 |
6 | 11 | 15/16 | 6.065 | 6.625 | 7 9/16 | 3 1/2 | 8 5/8 | 7 5/8 | 11/32 | 1/4 | 8 | 7/8 | 9 1/2 |
8 | 13 1/2 | 1 1/16 | 7.981 | 8.625 | 9 11/16 | 4 | 10 3/4 | 9 3/4 | 11/32 | 1/4 | 8 | 7/8 | 11 3/4 |
10 | 16 | 1 1/8 | 10.020 | 10.750 | 12 | 4 | 13 | 12 | 11/32 | 1/4 | 12 | 1 | 14 1/4 |
12 | 19 | 1 3/16 | 12.00 | 12.750 | 14 3/8 | 4 1/2 | 16 | 15 | 11/32 | 1/4 | 12 | 1 | 17 |
14 | 21 | 1 5/16 | 13.25 | 14.00 | 15 3/4 | 5 | 16 3/4 | 15 5/8 | 11/32 | 1/4 | 12 | 1 1/8 | 18 3/4 |
16 | 23 1/2 | 1 3/8 | 15.25 | 16.00 | 18 | 5 | 19 | 17 7/8 | 11/32 | 1/4 | 16 | 1 1/8 | 21 1/4 |
18 | 25 | 1 1/2 | 17.25 | 18.00 | 19 7/8 | 5 1/2 | 21 1/2 | 20 3/8 | 11/32 | 1/4 | 16 | 1 1/4 | 22 3/4 |
20 | 27 1/2 | 1 5/8 | 19.25 | 20.00 | 22 | 5 11/16 | 23 1/2 | 22 | 11/32 | 1/4 | 20 | 1 1/4 | 25 |
22 | 29 1/2 | 1 3/4 | 21.25 | 22.00 | 24 | 5 7/8 | 25 1/2 | 24 1/4 | 11/32 | 1/4 | 20 | 1 3/8 | 27 1/4 |
24 | 32 | 1 13/16 | 23.25 | 24.00 | 26 1/8 | 6 | 28 | 26 1/2 | 11/32 | 1/4 | 20 | 1 3/8 | 29 1/2 |