 |
|
Wall Thickness for Working Pressures
(All Dimensions in Milimeter) |
|
Outside Dia |
2.5kg/cm2
Class 1 |
4kg/cm2
Class 2 |
6kg/cm2
Class 3 |
10kg/cm2
Class 4 |
|
|
Min. |
Max. |
Min. |
Max. |
Min. |
Max. |
Min. |
Max. |
|
20 |
- |
- |
- |
- |
- |
- |
1.1 |
1.5 |
|
25 |
- |
- |
- |
- |
- |
- |
1.4 |
1.8 |
|
32 |
- |
- |
- |
- |
- |
- |
1.8 |
2.2 |
|
40 |
- |
- |
- |
- |
1.4 |
1.8 |
2.2 |
2.7 |
|
50 |
- |
- |
1.2 |
1.6 |
1.7 |
2.1 |
2.8 |
3.3 |
|
63 |
- |
- |
1.5 |
1.9 |
2.2 |
2.7 |
3.5 |
4.1 |
|
75 |
- |
- |
1.8 |
2.2 |
2.5 |
3.1 |
4.2 |
4.9 |
|
90 |
1.3 |
1.7 |
2.1 |
2.6 |
3.1 |
3.7 |
5.0 |
5.7 |
|
110 |
1.6 |
2.0 |
2.5 |
3.0 |
3.7 |
4.3 |
6.1 |
7.0 |
|
125 |
1.8 |
2.2 |
2.9 |
3.4 |
4.3 |
5.0 |
6.9 |
7.7 |
|
140 |
2.0 |
2.4 |
3.2 |
3.8 |
4.8 |
5.5 |
7.7 |
8.7 |
|
150 |
2.3 |
2.8 |
3.7 |
4.3 |
5.4 |
6.2 |
8.8 |
9.9 |
|
180 |
2.6 |
3.1 |
4.2 |
4.9 |
6.1 |
7.0 |
9.9 |
11.1 |
|
200 |
2.9 |
3.4 |
4.6 |
5.3 |
6.8 |
7.7 |
11.0 |
12.3 |
|
225 |
3.3 |
3.9 |
5.2 |
6.0 |
7.6 |
8.6 |
12.4 |
13.9 |
|
250 |
3.6 |
4.2 |
5.7 |
6.5 |
8.5 |
9.6 |
13.8 |
15.4 |
|
280 |
4.1 |
4.8 |
6.4 |
7.3 |
9.5 |
10.7 |
15.4 |
17.4 |
|
315 |
4.6 |
5.3 |
7.2 |
8.2 |
10.7 |
12.0 |
17.3 |
19.3 |
|
|
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