CVPP is a differential-pressure pilot valve available in low-pressure and high-pressure versions.
The pilot valve is used to maintain a constant differential pressure between the CVPP valve reference pressure connection and the ICS or PM main valve inlet pressure.
CVPP incorporates a diaphragm so that the reference pressure and the refrigerant in the valve are physically separated. The pilot valve can therefore also be used as a pneumatic control valve either to control a ICS or PM main valve or as a separate pneumatic valve mounted in a CVH housing. Classified for: Fluid Group 1, Category: Article 3, paragraph 3