Description: the mass of the object without add-on part and operating materials; Name: weight of empty object
Description: mass of the object without add-on part and operating materials; Name: empty weight
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