石油、石化及相关工业用的钢制球阀 螺纹端、承插焊孔的最小壁厚
公称压力 PN |
公称尺寸 DN |
|||||||
8 |
10 |
15 |
20 |
25 |
32 |
40 |
50 |
|
最小壁厚/mm |
||||||||
16~50 |
3.0 |
3.0 |
3.3 |
3.6 |
3.8 |
3.8 |
4.1 |
4.6 |
63~100 |
3.3 |
3.6 |
4.1 |
4.3 |
5.1 |
5.3 |
5.6 |
6.1 |
140 |
3.3 |
3.6 |
4.1 |
4.3 |
5.1 |
5.3 |
5.6 |
6.9 |
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