Description: describes how humans intervene in a control system; Name: mode of operation
Description: characterization of the way and the extent to which the human operator intervenes in the control equipment; Name: operating mode
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