Calculate the pressure difference by subtracting the desired outlet pressure from the maximum inlet pressure.

基本平衡单阀座最大限度减小进口压力变化对输出压力的影响。

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Calculate the pressure difference by subtracting the desired outlet pressure from the maximum inlet pressure.

通过从最大进口压力减去所需要的出口压力来计算压差。

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Hydrostatic pressure testing of the inlet valves (with open and closed disc) under a pressure of 1, 5 times the maximum static pressure plus water hammer for 30 minutes.

持续30分钟1.5倍的最大静压与水锤压力下，对入口阀(带打开和关闭盘)的静水压试验。

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