Description: remaining, unused volume at the end of the pressure stroke; Name: Dead space volume
Description: volume remaining unswept at the end of the discharge stroke; Name: clearance volume
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