Description: Speed at which the turbine fast closing is triggered; Name: Quick-action speed
Description: Speed at which the turbine quick action is triggered; Name: Quick-acting speed
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