What is the function of crankcase pressure regulating valve?
1, crankcase pressure regulating valve for defrosting cycle stage, defrosting after the selection and rated cooling capacity is often shut down during and after the stage to limit the crankcase pressure in the pre-set maximum to prevent compressor motor overload;
2. This type of valve The rating of this type of valve is related to the following three factors: the design suction pressure after shutdown. The pressure will automatically adjust the refrigerant flowing out of the evaporator until the compressor can bear the maximum allowable suction pressure recommended by the compressor or the manufacturer of the unit (that is, the set value of the valve);
3, and the pressure drop of the valve. The difference between the design suction pressure and the valve set value determines how much valve range to use. Therefore, the valve set value should be as high as possible, but do not exceed the compressor or unit manufacturer's recommended value
