Open pump casing high pointing venting and discharge high pointing venting until gas free. 打開泵體的高點放空閥及出口管線高點放空閥，排氣至無氣體。
When it is rotating,the air among the vanes flows along the edge of the vanges under the function of centrifugal forceenters into the annular caviity of the pump. 向葉輪的邊緣運動，進入泵體的環形空腔，然後又返回葉輪，重新從葉片的起點以同樣的方式再進行循環。
A rotor disc is mounted eccentrically in the pump housing. 轉子盤偏心安裝在泵殼內。
Eccentric structure Of impeller and pump casing applied. 葉輪與泵殼偏心布置。
