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Design of refrigerant circuit > < Pipes and hoses in refrigerant circuit

Passat (B3)

High-pressure safety valve
High-pressure safety valve
   
The high-pressure safety valve is fitted to the air conditioner compressor or the receiver.
The valve opens at a pressure above ca. 38 bar and closes again when the pressure has dropped (ca. 30 bar).
Not all the refrigerant is lost from the system.
Depending on the version, a transparent plastic disc may be fitted, which breaks when the valve opens.
  V87-1456

Design of refrigerant circuit > < Pipes and hoses in refrigerant circuit