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: maximum value of ratio between the applied shear stress and rate of shear of a liquid at design temperature it is sometimes referred to as the coefficient of dynamic viscosity, or simply viscosity, thus dynamic viscosity is a measure of the resistance to flow or deformation of a liquid; Name: maximum dynamic viscosity at design temperature