ASME/ANSI B16.5 flanges: Class 150
This chart is for information purposes only.
For detailed information please refer to primary standards.
D [mm] - outside diameter
K [mm] - diameter of bolt circle
Qty - number of bolts
Size - size of bolts
| DN | Class 150 | ||||
|---|---|---|---|---|---|
| D | K | Qty. | Size | ||
| 15 | 1/2" | 89 | 60.3 | 4 | 16 |
| 20 | 3/4" | 98 | 69.8 | 4 | 16 |
| 25 | 1 | 108 | 79.4 | 4 | 16 |
| 32 | 1 1/4" | 117 | 88.9 | 4 | 16 |
| 40 | 1 1/2" | 127 | 98.4 | 4 | 16 |
| 50 | 2 | 152 | 120.6 | 4 | 19 |
| 65 | 2 1/2" | 178 | 139.7 | 4 | 19 |
| 80 | 3 | 190 | 152.4 | 4 | 19 |
| 100 | 4 | 229 | 190.5 | 8 | 19 |
| 125 | 5 | 254 | 215.9 | 8 | 22 |
| 150 | 6 | 279 | 241.3 | 8 | 22 |
| 200 | 8 | 343 | 298.4 | 8 | 22 |
| 250 | 10 | 406 | 361.9 | 12 | 25 |
| 300 | 12 | 483 | 431.8 | 12 | 25 |
| 350 | 14 | 533 | 476.2 | 12 | 29 |
| 400 | 16 | 597 | 539.8 | 16 | 29 |
| 450 | 18 | 635 | 577.8 | 16 | 32 |
| 500 | 20 | 699 | 635.0 | 20 | 32 |
| 600 | 24 | 813 | 749.3 | 20 | 35 |