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 | 5.8 | 6.9 |
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