Car A/C Compressor Pressure Relief Valve

 
By 2 August 2014
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If the load within the system is excessive or a blockage occurs and the pressure of the system is excessively high then a pressure relief valve fitted to the compressor and often the accumulator opens and reduces the system pressure.The valve is only used if other safety devices fail. The valve reduces the possibility of a burst pipe or fractured evaporator or condenser due to excessive pressures in the system.The valve operates at approximately 3.5–4.0 MPa.