manual quick-open drain plunger valve 手动快开排污柱塞阀
Just open a hot water valve in a sink or shower and let the system drain.
我们只要打开浴缸或淋浴喷头的热水出水阀，把热水器的水放掉就行了。
If the drain valve regularly, according to the requirements of the open air consumption can be minimized.
倘若排水阀按要求定期开启，空气的消耗可以最大限度地降低。
After turning off the gas or electricity open the drain valve at the tank bottom.
在关闭燃气或电源后可开启罐底的排水阀。
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