Description: Part of the total active maintenance time required to perform preventive maintenance; Name: active period of preventive maintenance
Description: part of the active maintenance time taken to perform a preventive maintenance; Name: active preventive maintenance time
Description: Speed that characterizes a pumps cavitation performance in terms of its speed, optimum rate of flow per impeller eye at best efficiency point and NPSH3 at best efficiency point for the first stage at maximum impeller diameter ; Name: Suction-specific speed