The  control valve or regulating valve for A/C Compressor is required to precisely regulate or vary the displacement of the compressor and thus the quantity of gas to be compressed.

There are 2 types of valves:

– the mechanical one which does not receive any input and mechanically regulates the flow within a set pressure range.

– the electronic one which instead receives an input from the control unit and on the basis of this input varies the compressor’s displacement.