Description: Quantitative information on the duration of usability in years; Name: life of use
Description: quantitative information relating to the utilization duration in years; Name: Useful life
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