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通用阀门 铁制截止阀与升降式止回阀、阀体的最小壁厚_阀门标准
通用阀门 铁制截止阀与升降式止回阀、阀体的最小壁厚
|
公称尺寸 DN |
公称压力 | ||||
| PN10 | PN16 | PN10 | PN16 | PN16 | |
| 阀体材料 | |||||
| 灰铸铁 | 可锻铸铁 | 球墨铸铁 | |||
| 15 | 5 | 5 | 5 | 5 | 5 |
| 20 | 6 | 6 | 6 | 6 | 6 |
| 25 | 6 | 6 | 6 | 6 | 6 |
| 32 | 6 | 7 | 6 | 7 | 7 |
| 40 | 7 | 7 | 7 | 7 | 7 |
| 50 | 7 | 8 | 7 | 8 | 8 |
| 65 | 8 | 8 | 8 | 8 | 8 |
| 80 | 8 | 9 | — | — | 9 |
| 100 | 9 | 10 | — | — | 10 |
| 125 | 10 | 12 | — | — | 12 |
| 150 | 11 | 12 | — | — | 12 |
| 200 | 12 | 14 | — | — | 14 |
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