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石油、化工及相关工业用的钢制旋启式止回阀 阀体壳体的最小壁厚_阀门标准
石油、化工及相关工业用的钢制旋启式止回阀 阀体壳体的最小壁厚
| 公称尺寸 DN |
公 称 压 力 PN |
|||||||||
| 16 |
20 |
25 |
40 |
50 |
63 |
100、110 |
150、160 |
250、260 |
420 |
|
| 50 |
7.9 |
8.6 |
8.8 |
9.3 |
9.7 |
10.0 |
11.2 |
15.8 |
19.1 |
22.4 |
| 65 |
8.7 |
9.7 |
10.0 |
10.7 |
11.2 |
11.4 |
11.9 |
18.0 |
22.4 |
25.4 |
| 80 |
9.4 |
10.4 |
10.7 |
11.4 |
11.9 |
12.1 |
12.7 |
19.1 |
23.9 |
30.2 |
| 100 |
10.3 |
11.2 |
11.5 |
12.2 |
12.7 |
13.4 |
16.0 |
21.3 |
28.7 |
35.8 |
| 150 |
11.9 |
11.9 |
12.6 |
14.6 |
16.0 |
16.7 |
19.1 |
26.2 |
38.1 |
48.5 |
| 200 |
12.7 |
12.7 |
13.5 |
15.9 |
17.5 |
19.2 |
25.4 |
31.8 |
47.8 |
62.0 |
| 250 |
14.2 |
14.2 |
15.0 |
17.5 |
19.1 |
21.2 |
28.7 |
36.6 |
57.2 |
67.6 |
| 300 |
15.3 |
16.0 |
16.8 |
19.1 |
20.6 |
23.0 |
31.8 |
42.2 |
66.8 |
86.6 |
| 350 |
15.9 |
16.8 |
17.7 |
20.5 |
22.4 |
25.2 |
35.1 |
46.0 |
69.9 |
— |
| 400 |
16.4 |
17.5 |
18.6 |
21.8 |
23.9 |
27.0 |
38.1 |
52.3 |
79.5 |
— |
| 450 |
16.9 |
18.3 |
19.5 |
23.0 |
25.4 |
28.9 |
41.4 |
57.2 |
88.9 |
— |
| 500 |
17.6 |
19.1 |
20.4 |
24.3 |
26.9 |
30.7 |
44.5 |
63.5 |
98.6 |
— |
| 600 |
19.6 |
20.6 |
22.2 |
27.0 |
30.2 |
34.7 |
50.8 |
73.2 |
114.3 |
— |
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