Self suction pump is used for the first time, need to add water, then don't need to add water.
自吸式水泵第一次使用时，需要加引水，以后则不必再加引水。
Wine pump, self suction pump, axial flow pump, starch pump, high temperature concentrated slurry pump, detachable piping pump, valve fittings etc.
酒泵，自吸泵，轴流泵，淀粉泵，高温浓浆泵，便拆式管道泵，泵阀配件等。
The suction capability of the pump depends on the cavitation margin and the maximum self-suction height of the pump.
泵的吸入能力取决于泵的汽蚀余量和最大自吸高度。
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