Description: Measured flow rate passing through the volute outlet divided by the cross-section of the volute outlet.; Name: average velocity in the spiral housing outlet area
Description: measured rate of flow passing through the exit from the volute divided by the throat area; Name: mean velocity at throat
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