Description: Design flow rate in the pump inlet port divided by the inlet cross-section of the pump; Name: average design speed in the inlet
Description: rated flow at pump inlet connection divided by the inlet area of the pump; Name: mean rated velocity at inlet
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