flap check valve 中文意思是什麼
flap check valve
解釋
閥瓣式止回閥-
Once the pressure of the main network returns to normal, the valve flap of drainage outlet closes under pressure, first, second level check valves open, the main network return to supply water to branch pipeline
一旦主管網壓力恢復正常,排污口閥瓣受壓關閉,一二級止回閥打開,主管路恢復向支管供水。 -
Municipal drinking water enters from the first level check valve, passes through drainage device, second level check valve, to supply water to the water downstream, part of medium enter the lower cavity of diaphragm of drainage device, to close the valve flap of drainage device
市政飲用水從第一級止回閥進入,經過排污器、二級止回閥,向下游供水,一部分介質由導管進入排污器膜片下腔,使排污器閥瓣關閉。
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