阀门壳体最小壁厚尺寸要求规范
铁制旋启式止回阀壳体最小壁厚
单位为毫米
公称尺寸 DN |
公称压力 | ||||
PN2.5 | PN6 | PN10 | PN16 | PN25 | |
灰铸铁 | 球墨铸铁 | ||||
50 | 6 | 8 | 8 | 8 | 8 |
65 | 6 | 8 | 8 | 9 | 9 |
80 | 6 | 9 | 9 | 10 | 10 |
100 | 8 | 9 | 9 | 11 | 11 |
125 | 9 | 10 | 10 | 12 | 12 |
150 | 9 | 10 | 10 | 14 | 14 |
200 | 10 | 12 | 12 | 15 | 15 |
250 | 12 | 13 | 13 | 15 | - |
300 | 13 | 14 | 14 | 16 | - |
350 | 14 | 15 | 15 | 16 | - |
400 | 14 | 16 | 16 | 18 | - |
450 | 15 | 17 | 17 | 20 | - |
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