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石油、石化及相关工业用钢制截止阀和升降式止回阀 阀体的最小壁厚_阀门标准
石油、石化及相关工业用钢制截止阀和升降式止回阀 阀体的最小壁厚
| 公称 尺寸 DN |
公称压力 PN |
|||||||||
| 16 |
20 |
25 |
40 |
50 |
63、64 |
100、110 |
150、160 |
250、260 |
420 |
|
| 阀体最小壁厚/mm |
||||||||||
| 15 |
6.3 |
6.3 |
6.3 |
6.3 |
6.3 |
6.3 |
6.3 |
7.7 |
9.5 |
11.1 |
| 20 |
6.3 |
6.3 |
6.3 |
6.3 |
6.3 |
6.5 |
7.1 |
8.9 |
11.1 |
13.5 |
| 25 |
6.3 |
6.3 |
6.3 |
6.3 |
6.3 |
6.7 |
7.9 |
9.5 |
12.7 |
15.1 |
| 32 |
6.3 |
6.3 |
6.3 |
6.3 |
6.3 |
7.0 |
8.7 |
10.5 |
14.2 |
17.5 |
| 40 |
6.3 |
6.3 |
6.7 |
7.4 |
7.9 |
8.4 |
9.5 |
11.3 |
15.0 |
19.0 |
| 50 |
7.9 |
8.7 |
8.8 |
9.2 |
9.5 |
10.0 |
11.1 |
13.8 |
19.0 |
22.2 |
| 65 |
8.7 |
9.5 |
9.8 |
10.6 |
11.1 |
11.4 |
11.9 |
15.4 |
22.2 |
25.4 |
| 80 |
9.4 |
10.3 |
10.6 |
11.4 |
11.9 |
12.2 |
12.7 |
19.0 |
23.8 |
30.2 |
| 100 |
10.3 |
11.1 |
11.4 |
12.2 |
12.7 |
12.7 |
15.9 |
21.4 |
28.6 |
35.7 |
| 150 |
11.9 |
11.9 |
12.6 |
14.6 |
15.9 |
16.7 |
19.0 |
25.4 |
38.1 |
48.4 |
| 200 |
12.7 |
12.7 |
13.4 |
15.9 |
17.4 |
19.0 |
25.4 |
31.8 |
47.6 |
61.9 |
| 250 |
13.5 |
13.5 |
14.5 |
17.2 |
19.0 |
21.4 |
28.6 |
36.5 |
57.2 |
67.5 |
| 300 |
15.9 |
15.9 |
16.8 |
19.3 |
21.0 |
23.8 |
31.8 |
42.1 |
66.7 |
86.5 |
| 350 |
16.7 |
16.7 |
— |
— |
— |
— |
— |
46.0 |
69.8 |
— |
| 400 |
17.5 |
17.5 |
— |
— |
— |
— |
— |
— |
— |
— |
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