保持試驗壓力的持續(xù)時間
|
閥門的公稱通徑 |
殼體試驗試驗壓力 |
密封試驗試驗壓力 |
上密封試驗試驗壓力 |
|
50~100 |
2 |
2 |
2 |
|
150~250 |
5 |
5 |
5 |
|
300~450 |
15 |
||
|
≥500 |
30 |
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