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: The operating underpressure PS2- is the maximum value of the operating underpressure defined from a safety point of view by the manufacturer of the system for the various components in relation to the atmospheric pressure (1 bar) at the maximum permissible temperature TS2; Name: Max. permissible underpressure PS2- at TS2, room2