Description: Volume of the unit mass of a substance that is needed for the lifting process; Name: Volume of stroke
Description: Volume of one unit of mass measure of a substance which is required for a single stroke; Name: Stroke volume
Description: Speed that characterizes a pump in terms of its speed, flow rate per impeller eye, i.e. total flow for single-flow impeller, half flow for double-flow impeller, at the best efficiency point and head per stage at maximum impeller diameter ; Name: Specific speed