Description: Ratio of the amount of active power to the apparent power; Name: cos phi
Description: Relation of the amount of the active power to the false performance; Name: Power factor (cos phi)
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