Gasket dimensions for flat ring and full face applications
BS 10 table T
Nominal pipe size |
Gasket ID |
IBC gasket OD |
Full face |
Nominal pipe size |
Full face gasket OD |
Diameter of bolt holes |
Bolt P.C.D. |
Number of bolt holes |
Inches |
mm |
Inches |
mm |
Inches |
mm |
Inches |
mm |
Inches |
mm |
1/2 |
27/32 |
21.4 |
3 1/8 |
79.4 |
5 1/2 |
139.7 |
7/8 |
22.2 |
4 |
101.6 |
4 |
1/2 |
3/4 |
1 1/16 |
27.0 |
3 1/8 |
79.4 |
5 1/2 |
139.7 |
7/8 |
22.2 |
4 |
101.6 |
4 |
3/4 |
1 |
1 11/32 |
34.1 |
3 3/8 |
85.7 |
5 3/4 |
146.1 |
7/8 |
22.2 |
4 1/4 |
108.0 |
4 |
1 |
1 1/4 |
1 11/16 |
42.9 |
3 3/4 |
95.3 |
6 1/4 |
158.8 |
1 |
25.4 |
4 3/4 |
120.7 |
4 |
1 1/4 |
1 1/2 |
1 29/32 |
48.4 |
4 3/8 |
111.1 |
6 3/4 |
171.5 |
7/8 |
22.2 |
5 1/4 |
133.4 |
8 |
1 1/2 |
2 |
2 3/8 |
60.3 |
4 7/8 |
123.8 |
7 1/4 |
184.2 |
7/8 |
22.2 |
5 3/4 |
146.1 |
8 |
2 |
2 1/2 |
3 |
76.2 |
5 1/2 |
139.7 |
8 |
203.2 |
1 |
25.4 |
6 1/2 |
165.1 |
8 |
2 1/2 |
3 |
3 1/2 |
88.9 |
6 3/8 |
161.9 |
9 1/4 |
235.0 |
1 1/8 |
28.6 |
7 1/2 |
190.5 |
8 |
3 |
3 1/2 |
4 |
101.6 |
7 1/4 |
184.2 |
10 1/2 |
266.7 |
1 1/4 |
31.8 |
8 1/2 |
215.9 |
8 |
3 1/2 |
4 |
4 1/2 |
114.3 |
8 |
203.2 |
11 1/4 |
285.8 |
1 1/4 |
31.8 |
9 1/4 |
235.0 |
8 |
4 |
4 1/2 |
5 |
127.0 |
8 7/8 |
225.4 |
11 3/4 |
|
1 1/8 |
28.6 |
10 |
254.0 |
12 |
4 1/2 |
5 |
5 1/2 |
139.7 |
9 1/2 |
241.3 |
12 3/4 |
298.5 |
1 1/4 |
31.8 |
10 3/4 |
273.1 |
12 |
5 |
6 |
6 5/8 |
168.3 |
11 1/8 |
282.6 |
14 3/4 |
323.9 |
1 3/8 |
34.9 |
12 1/2 |
317.5 |
12 |
6 |
7 |
7 1/2 |
190.5 |
13 |
330.2 |
17 |
374.7 |
1 1/2 |
38.1 |
14 1/2 |
368.3 |
12 |
7 |
8 |
8 1/2 |
215.9 |
14 3/8 |
365.1 |
18 3/4 |
431.8 |
1 5/8 |
41.3 |
16 |
406.4 |
12 |
8 |
9 |
9 1/2 |
241.3 |
16 |
406.4 |
20 |
508.0 |
1 1/2 |
38.1 |
17 1/2 |
444.5 |
16 |
9 |
10 |
10 5/8 |
269.9 |
17 5/8 |
447.7 |
22 |
558.8 |
1 5/8 |
41.3 |
19 1/4 |
489.0 |
16 |
10 |
11 |
11 5/8 |
295.3 |
19 1/8 |
485.8 |
24 1/4 |
616.0 |
1 7/8 |
47.6 |
21 |
533.4 |
16 |
11 |
12 |
12 5/8 |
320.7 |
20 5/8 |
523.9 |
25 3/4 |
654.1 |
1 7/8 |
47.6 |
22 1/2 |
571.5 |
16 |
12 |
13 |
13 5/8 |
346.1 |
21 7/8 |
555.6 |
27 3/4 |
704.9 |
2 1/8 |
54.0 |
24 |
609.6 |
16 |
13 |