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: measure of the increase in the pumped liquid water on a pipe connected vertically to the pump when the flow rate is zero. related to the operation of the pump at 1,450 rpm with maximum impeller size; Name: pump shut-off head for maximum impeller diameter at 1450/min