Description: Product of geometric displacement volume and rotational speed or stroke frequency.; Name: geometric flow rate
Description: displacement volume for one stroke or one cycle; Name: geometrical flow
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