BS 10 - 1962 TABLE D

Flange size designation (Nominal bore of pipe) |
Apprx. Outside diameterof steel pipe. |
Diameter of flange O.D. |
Bold circle diameter P.C.D |
No. Of Bolts |
Diameter of Bolts |
Thickness Slip onFlange. |
inches | inches | inches | inches | inches | inches | |
1/2 | 27/32 | 3 3/4 | 2 5/8 | 4 | 1/2 | 3/16 |
3/4 | 1 1/16 | 4 | 2 7/8 | 4 | 1/2 | 3/16 |
1 | 1 11/32 | 4 1/2 | 3 1/4 | 4 | 1/2 | 3/16 |
1 1/4 | 1 11/16 | 4 3/4 | 3 7/16 | 4 | 1/2 | 1/4 |
1 1/2 | 1 29/32 | 5 1/4 | 3 7/8 | 4 | 1/2 | 1/4 |
2 | 2 3/8 | 6 | 4 1/2 | 4 | 5/8 | 5/16 |
2 1/2 | 3 | 6 1/2 | 5 | 4 | 5/8 | 5/16 |
3 | 3 1/2 | 7 1/4 | 5 3/4 | 4 | 5/8 | 3/8 |
3 1/2 | 4 | 8 | 6 1/2 | 4 | 5/8 | 3/8 |
4 | 4 1/2 | 8 1/2 | 7 | 4 | 5/8 | 3/8 |
5 | 5 1/2 | 10 | 8 1/4 | 8 | 5/8 | 1/2 |
6 | 6 5/8 | 11 | 9 1/4 | 8 | 5/8 | 1/2 |
7 | 7 5/8 | 12 | 10 1/4 | 8 | 5/8 | 1/2 |
8 | 8 5/8 | 13 1/4 | 11 1/2 | 8 | 5/8 | 1/2 |
9 | 9 5/8 | 14 1/2 | 12 3/4 | 8 | 5/8 | 5/8 |
10 | 10 3/4 | 16 | 14 | 8 | 3/4 | 5/8 |
12 | 12 3/4 | 18 | 16 | 12 | 3/4 | 3/4 |
14 | 14 | 20 3/4 | 18 1/2 | 12 | 7/8 | 7/8 |
16 | 16 | 22 3/4 | 20 1/2 | 12 | 7/8 | 7/8 |
18 | 18 | 25 1/4 | 23 | 12 | 7/8 | 1 |
20 | 20 | 27 3/4 | 25 1/4 | 16 | 7/8 | 1 1/8 |
22 | 22 | 30 | 27 1/2 | 16 | 1 | 1 1/8 |
24 | 24 | 32 1/2 | 29 3/4 | 16 | 1 | 1 1/4 |