密封插件 meaning in English

hermetically sealed connector

Fcd . 3 138g : 4ds outer - thread copper pipe union at both ends of the inlet and the outlet this valve uses the principle of two - stage pressure reducing variation and , when to lower the switch valve , the shock from the water pressure to the valve casing shortens the start time of this valve under the highest medium pressure and makes it with the incomparable superiority of energy saving among the pulse - type electric - controlled valves , combining to increase filtered to regulate the discharge function with machine type
该阀采用二级减压变化原理，降低开关阀时水压对阀体等配件的冲击，提高电磁阀的可靠性和工作寿命，缩短了阀在最高介质压力下开启时间，使其在脉冲式电控阀门中具有无可伦比的节能优势，并在接线上采用密封插件，并增加了过滤器和机械式调节流量功能。