Gasket - Full Face, ANSI Cl 125/150, ASME B16.21 (in)
- Dimensions to ASME B16.21 - Nonmetallic Flat Gaskets for Pipe Flanges
|
| Pipe Size (NPS) |
Gasket Inside Diameter |
Gasket Outside Diameter |
Number of Bolt Holes |
Diameter of Bolt Holes |
Bolt Circle Diameter |
| 1/2 |
13/16 |
3 1/2 |
4 |
5/8 |
2 3/8 |
| 3/4 |
1 1/16 |
3 7/8 |
4 |
5/8 |
2 3/4 |
| 1 |
1 5/16 |
4 1/4 |
4 |
5/8 |
3 1/8 |
| 1 1/4 |
1 5/8 |
4 5/8 |
4 |
5/8 |
3 1/2 |
| 1 1/2 |
1 7/8 |
5 |
4 |
5/8 |
3 7/8 |
| 2 |
2 3/8 |
6 |
4 |
3/4 |
4 3/4 |
| 2 1/2 |
2 7/8 |
7 |
4 |
3/4 |
5 1/2 |
| 3 |
3 1/2 |
7 1/2 |
4 |
3/4 |
6 |
| 3 1/2 |
4 |
8 1/2 |
8 |
3/4 |
7 |
| 4 |
4 1/2 |
9 |
8 |
3/4 |
7 1/2 |
| 5 |
5 9/16 |
10 |
8 |
7/8 |
8 1/2 |
| 6 |
6 5/8 |
11 |
8 |
7/8 |
9 1/2 |
| 8 |
8 5/8 |
13 1/2 |
8 |
7/8 |
11 3/4 |
| 10 |
10 3/4 |
16 |
12 |
1 |
14 1/4 |
| 12 |
12 3/4 |
19 |
12 |
1 |
17 |
| 14 |
14 |
21 |
12 |
1 1/8 |
18 3/4 |
| 16 |
16 |
23 1/2 |
16 |
1 1/8 |
21 1/4 |
| 18 |
18 |
25 |
16 |
1 1/4 |
22 3/4 |
| 20 |
20 |
27 1/2 |
20 |
1 1/4 |
25 |
| 22 |
22 |
29 1/2 |
20 |
1 3/8 |
27 1/4 |
| 24 |
24 |
32 |
20 |
1 3/8 |
29 1/2 |
| 26 |
26 |
34 1/4 |
24 |
1 3/8 |
31 3/4 |
| 28 |
28 |
36 1/2 |
28 |
1 3/8 |
34 |
| 30 |
30 |
38 3/4 |
28 |
1 3/8 |
36 |
| 32 |
32 |
41 3/4 |
28 |
1 5/8 |
38 1/2 |
| 34 |
34 |
43 3/4 |
32 |
1 5/8 |
40 1/2 |
| 36 |
36 |
46 |
32 |
1 5/8 |
42 3/4 |
| 38 |
38 |
48 3/4 |
32 |
1 5/8 |
45 1/4 |
| 40 |
40 |
50 3/4 |
36 |
1 5/8 |
47 1/4 |
| 42 |
42 |
53 |
36 |
1 5/8 |
49 1/2 |
| 44 |
44 |
55 1/4 |
40 |
1 5/8 |
51 3/4 |
| 46 |
46 |
57 1/4 |
40 |
1 5/8 |
53 3/4 |
| 48 |
48 |
59 1/2 |
44 |
1 5/8 |
56 |
| 50 |
50 |
61 3/4 |
44 |
1 7/8 |
58 1/4 |
| 52 |
52 |
64 |
44 |
1 7/8 |
60 1/2 |
| 60 |
60 |
73 |
52 |
1 7/8 |
69 1/4 |
| 66 |
66 |
80 |
52 |
1 7/8 |
76 |
| 72 |
72 |
86 1/2 |
60 |
1 7/8 |
82 1/2 |
| 84 |
84 |
99 3/4 |
64 |
2 1/8 |
95 1/2 |
| 96 |
96 |
113 1/4 |
68 |
2 3/8 |
108 1/2 |
