Description: period of time during which a system or component is operational and in service, but not in use; Name: it
Description: Time interval throughout which an item is in an idle state; Name: Idle time
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