universal valve meaning in English

通用电子管
万向阀

This valve uses the packing structure with the ability of self - seal , needs no constant adjustment , features very light open and close and a reliable seal an assisting sealing grease injection structure is set in the packing to have the sealing performance absolutely reliable and get a true null leak , settling the problem for the packing place of universal valves to be easiest leak outward
本阀采用带自密封能力的填料结构，无需经常调节，开、关极为轻便，且密封性可靠，填料函处设有辅助密封油脂注入结构，密封性能绝对可靠，真正达到零泄漏；解决了通用阀门填料处最容易外漏的蔽病。