double-seal valve的意思|示意

When disconnecting cylinders with diaphragm valves, it is most important to double close the valve and to properly install the outlet seal.

当切断钢瓶和隔膜阀的连接时，两次关闭阀门和正确安装排气口密封是最重要的。

One valve includes a cap (56) that provides a double seal (58, 60) .

一个阀门包括提供了双重密 封件（58、60）的盖子（56）。

Fully sealed: with cover and pole double seal design to prevent leakage of electrolysis. and the reliability of safe-valve prevent oxygen and dust from outside enter into the battery.

采用电池槽盖、极柱双重密封设计，防止漏液，可靠的安全阀可防止外部空气和尘埃进入电池内部。