Description: Total head developed by the pump at a rate of flow corresponding to the best efficiency; Name: Optimal head
Description: Total head developed by the pump at a rate of flow corresponding to the best efficiency; Name: Optimum head
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