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Why relief valve is not fitted on the crankcase of Refrigeration air compressor??

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  • Why relief valve is not fitted on the crankcase of Refrigeration air compressor??

    Why there is no relief valves fitted on the crankcase of reefer plant? I was asked this question in my oral examination. Please reply

  • #2
    @ Deepak :

    Their is no relief valve in the crank case of reefer compressor because of 3 main reasons-

    - There is no O2 available inside the crankcase of reefer plant which will lead to explosion
    - Due to low temp of incoming refrigerant, emerging of hot spot chances are less
    - Compressor is taking suction from the crank case. If relief valve is fitted and malfunctioning, it will draw air in the system

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