Description: free cross-section of the discharge opening in the discharge nozzle of the pump; Name: Outlet cross section of the pump
Description: free cross-sectional area of the orifice in the outlet connection of the pump; Name: outlet area of the pump
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