screw down valve 旋压阀 ; 螺旋阀 ; 螺杆阀
screw lift valve 螺旋提升阀
screw-down valve 螺旋关闭阀
screw-down stop valve 螺杆向下止动阀 ; 螺旋阀
inside screw stop valve 内螺纹截止阀
gas valve screw 气阀螺钉
outside screw and yoke valve 外螺旋轭阀
inside screw lift check valve 内螺纹升降式止回阀
Compared with the centrifugal pump without a single screw valve, the flow is stable linear flow.
与离心泵相比单螺杆泵无需安装阀门，流量是稳定的线性流动。
Take an empty two-liter soda bottle, wash it out, fill it with water, screw the lid on tightly and set it into your toilet tank, as far away from the flapper valve as possible.
拿一个两升的空汽水瓶，洗干净，装满水，旋紧盖子，放进马桶的水箱里，离舌形阀越远越好。
When using discharge tube, please? Screw it onto the outlet of valve, and tighten it.
如使用弯管，请将其套在阀门放料口的外螺纹上，并用手拧紧。
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