If the refrigerant system exists water, it will take a bad effect in acting or using, especially because the Freon can’t dissolve in water, when Moisture content of the freon pass through the expansion valve, due to the pressure and temperature is reduced,the water will be analyzed,became an ice,and caused a ice plug appearance. If the Freon refrigerant existing water, it will also speed up rusty of the metal parts. So the Freon in refrigerant system must go through a drying process, in order to remove the water inside. If the refrigerant dropped in some impurities, like dust and iron dust. When circulation, it is easy to jam the energy-saving hole in the expansion valve. So the refrigerant must be clean before get into the expansion valve. After entered into the Liquid Receivers, the drier filter installed in front of the expansion valve, can play a role in preventing ice plug and dirty blockage appearance
Dry filters for refrigeration machines