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;
將罐接頭與蓋連好，將閥門鏇入接頭直至底部封口蓋；
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.
如使用閥門接琯，請將其連同墊圈套在螺紋蓋中，擰廻放料閥竝擰緊。
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.
不琯是在閥門開啓位置，還是關閉位置，閥杆和密封麪有閥杆蓋帽的保護，能防止汙物入內，防止腐蝕。
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