ASME B16.5 Heavy Barrel Flange Dimensions
| Pipe Size (NPS) | Approx. Weight | Outside Diameter of Flange A | Diameter of Raised Face B | Thickness
of
Flange
C |
Diameter
of
Bore
D |
Diameter
of Hub
at Base
J |
Length
of
Hub
K |
Nut
Stop
Diameter
NS |
Nut
Relief
Diameter
NR |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 10 | 4 1/4 | 2 | 9/16 | 0.96 | 2 | 9 | 2 1/ 4 | 2 |
| 1 1/4 | 12 | 4 5/8 | 2 1/2 | 5/8 | 1.28 | 2 3/8 | 9 | 2 5/8 | 2 3/8 |
| 1 1/2 | 16 | 5 | 2 7/8 | 11/16 | 1.50 | 2 5/8 | 9 | 3 | 2 5/8 |
| 1/2 | 5 | 3 1/2 | 1 3/8 | 7/16 | 0.55 | 1 1/4 | 9 | 1 1/2 | 1 1/4 |
| 3/4 | 7 | 3 7/8 | 1 11/16 | 1/2 | 0.74 | 1 5/8 | 9 | 1 7/8 | 1 5/8 |
| 2 | 23 | 6 | 3 5/8 | 3/4 | 1.94 | 3 1/4 | 9 | 3 11/ 16 | 3 1/16 |
| 2 1/2 | 34 | 7 | 4 1/8 | 7/8 | 2.32 | 3 3/4 | 9 | 4 7/16 | 3 3/4 |
| 6 | 103 | 11 | 8 1/2 | 1 | 5.76 | 7 3/4 | 12 | 8 1/4 | 7 3/4 |
| 8 | 157 | 13 1/2 | 10 5/8 | 1 1/8 | 7.62 | 9 3/4 | 12 | 10 1/2 | 9 3/4 |
| 10 | 214 | 16 | 12 3/4 | 1 3/16 | 9.56 | 12 | 12 | 12 7/8 | 12 |
| 12 | 329 | 19 | 15 | 1 1/4 | 11.38 | 14 3/8 | 12 | 15 9/16 | 14 3/8 |
| 14 | 296 | 21 | 16 1/4 | 1 3/8 | 14.00 | 16 | 12 | 17 1/8 | 16 |
| 3 | 38 | 7 1/2 | 5 | 15/16 | 2.90 | 4 1/4 | 9 | 4 15/15 | 4 1/4 |
| 3 1/2 | 55 | 8 1/2 | 5 1/2 | 15/16 | 3.36 | 4 7/8 | 9 | 5 15/16 | 4 7/8 |
| 4 | 78 | 9 | 6 3/16 | 15/16 | 3.83 | 5 1/2 | 12 | 6 7/16 | 5 1/2 |
| 5 | 87 | 10 | 7 5/16 | 15/16 | 4.81 | 6 1/2 | 12 | 7 1/2 | 6 1/2 |
| 16 | 388 | 23 1/2 | 18 1/2 | 1 7/16 | 16.00 | 18 | 12 | 19 5/8 | 18 |
| 22 | – | – | – | – | – | – | – | – | – |
| 24 | 574 | 32 | 27 1/4 | 1 7/8 | 24.00 | 26 1/4 | 12 | 27 1/2 | 26 1/4 |
| 18 | 362 | 25 | 21 | 1 9/16 | 18.00 | 20 | 12 | 20 15/16 | 20 |
| 20 | 434 | 27 1/2 | 23 | 1 11/16 | 20.00 | 22 | 12 | 23 3/16 | 22 |
