Description: highest head of a pump, if this does not apply to the zero head; Name: peak height
Description: Highest total head developed by a pump when this does not occur at a zero rate of flow; Name: Head at peak point
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