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: net positive suction head (NPSH) from flow rate at best efficiency point for actual impeller (indication of the minimum inlet pressure in meters required for the pump to deliver according to the QH curve. related to the optimum duty point at the current impeller diameter); Name: net positive suction head for Q opt at actual impeller size