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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