Expansion Valve

The expansion valve is generally installed between the liquid storage cylinder and the evaporator. The expansion valve causes the medium temperature and high pressure liquid refrigerant to become low temperature and low pressure wet vapor through its throttling, and then the refrigerant absorbs heat in the evaporator to achieve the cooling effect. The expansion valve controls the valve flow through the change of the superheat at the end of the evaporator to prevent occurrence Insufficient utilization of evaporator area and cylinder knocking.

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