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: amount of the absolute value of the total head above the head, equivalent to the vapour pressure of the liquid at the particular temperature, with reference to the NPSH datum plane; Name: net positive suction head