通过在任何住宅水系统上安装一个防回流阀，可以形成一个无法适应热膨胀的封闭系统。
By installing a backflow preventer on any residential water system, you create a closed system that won't accommodate thermal expansion.
对于空气和蒸汽用安全阀，多采用不封闭式安全阀。
Used for air and steam safety valve, safety valve used is not closed.
气体压力可能会在封闭的阀腔内慢慢积累，或者在反应情况下相当迅速地积累，这是就极可能产生阀门故障。
Gas pressure may slowly build in the closed valve cavity, or quite rapidly in the reactive case. There are confirmed reports of ball valve structural failures.
进口卫生泵的型为单级、单吸、全封闭不锈钢离心泵或者气动隔膜阀。
Sanitary pump is single stage, single suction, full closed stainless steel centrifugal pump or pneumatic diaphragm valve.
气动球阀应存放在干燥通风的室内，通径两端应封闭，气动阀应处于全开或全关的位置。
This gas-operated valve should be kept in a well-ventilated dry room, with both ends of the ventilation channels closed. The gas-run valve should be either completely closed or open.
本发明涉及一种封闭式压缩机的阀装置。
The present invention relates to a valve apparatus for a hermetic compressor.
阀杆的高低能够指示阀门处于开启或封闭状态。
To indicate the level of the stem valve is opened or closed.
通电后，电磁力直接把先导小阀和主阀封闭件依次向上提起，阀门打开。
Power, the electromagnetic force directly to the pilot valve and main valve closed small pieces followed by upward, open the valve.
通电后，电磁力直接把先导小阀和主阀封闭件依次向上提起，阀门打开。
Power, the electromagnetic force directly to the pilot valve and main valve closed small pieces followed by upward, open the valve.
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