Description: npsh datum plane minus reference plane; Name: npsh datum plane height
Description: Difference between the NPSH datum plane and the reference plane ; Name: Height of the NPSH datum plane
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