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Nominal Diameter | Pressure Rating | Flange Diameter ( D ) | Flange Thickness ( T ) | No.of Holes ( n ) | Bolt Hole Diameter ( h ) | Bolt Circle Diameter ( C ) |
inch | psi | inch | inch | pcs | inch | inch |
1 | 150 | 4- 1/2 | 5/8 | 4 | 5/8 | 3- 1/8 |
1- 1/2 | 150 | 5- 1/2 | 11/16 | 4 | 5/8 | 3- 7/8 |
2 | 150 | 6- 1/2 | 11/16 | 4 | 3/4 | 4- 3/4 |
2- 1/2 | 150 | 7- 1/2 | 3/4 | 4 | 3/4 | 5- 1/2 |
3 | 150 | 8 | 13/16 | 4 | 3/4 | 6 |
4 | 150 | 9- 1/2 | 15/16 | 8 | 3/4 | 7- 1/2 |
5 | 150 | 10- 1/2 | 1 | 8 | 7/8 | 8- 1/2 |
6 | 150 | 11- 1/2 | 1- 1/16 | 8 | 7/8 | 9- 1/2 |
8 | 150 | 14 | 1- 1/4 | 8 | 7/8 | 11- 3/4 |
10 | 150 | 16- 1/2 | 1- 7/16 | 12 | 1 | 14- 1/4 |
12 | 150 | 19- 1/2 | 1- 3/4 | 12 | 1 | 17 |
14 | 150 | 21- 1/2 | 1- 7/8 | 12 | 1- 1/8 | 18- 3/4 |
16 | 150 | 24 | 2 | 16 | 1- 1/8 | 21- 1/4 |
18 | 150 | 25- 1/2 | 2- 1/4 | 16 | 1- 1/4 | 22- 3/4 |
20 | 150 | 28 | 2- 7/16 | 20 | 1- 1/4 | 25 |
24 | 150 | 32- 1/2 | 2- 13/16 | 20 | 1- 3/8 | 29- 1/2 |
30 | 150 | 39- 1/4 | 3 | 28 | 1- 3/8 | 36 |
36 | 150 | 46 | 3- 1/2 | 32 | 1- 5/8 | 42- 3/4 |