valve sealing cap

基本解释

The tank connector and cover with a good will into the connector until the bottom of the rotary valve sealing cap;
将罐接头与盖连好，将阀门旋入接头直至底部封口盖；
When using valve nozzle for easy drain, please insert nozzle into the sealing cap and screw the cap onto the discharge valve with gasket and tighten it.
如使用阀门接管，请将其连同垫圈套在螺纹盖中，拧回放料阀并拧紧。
The valve stem and sealing surfaces are completely protected from dirt and corrosion by the stem cap, whether the valve is in an open or closed position.
不管是在阀门开启位置，还是关闭位置，阀杆和密封面有阀杆盖帽的保护，能防止污物入内，防止腐蚀。
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