Description: differential pressure measured between the inlet and outlet ports for the operating conditions; Name: diff pr rated
Description: Differential pressure for the operating conditions at the guarantee point ; Name: Rated differential pressure 
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