石油、石化及相关工业用钢制截止阀和升降式止回阀 k系数表
阀门的公称压力 PN |
系数 k |
16~20 |
1.25 |
25~50 |
1.00 |
63~100 |
0.91 |
150﹑160 |
1.00 |
250﹑260 |
0.97 |
420 |
1.00 |
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