Where possible, the closed position should be determined by leak test using water or air, under low pressure.
如果可能的话，可以用水或空气，在低压状态下，对关闭状态进行测试，看看有没有泄漏。
The air leak tester of AL-1000A belongs to differential pressure type. It is a high precision detecting transducers. It is much economical and widely applied to seal test of product parts.
1000A系列检漏仪采用差压法检测原理，是一款高精度的检测仪器，广泛应用于多种产品的密封性检测。
The air leak tester of GST-4000 is successfully designed according as the characteristics of Fuel Gas Stopcock and test demands.
的基础上，根据燃气具旋塞阀的具体特点及检测要求而开发的一款产品。
The air leak tester of GST-4000 is successfully designed according as the characteristics of Fuel Gas Stopcock and test demands.
的基础上，根据燃气具旋塞阀的具体特点及检测要求而开发的一款产品。
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