Refrigeration dryers employ two heat exchangers, one for air-to-air and one for air-to-refrigeration.The compressors used in this type of dryer are usually of the hermetic type and the most common gas used is R-134a and R-410a for smaller air dryers up to 100 cfm.
Older and larger dryers still use R-22 and R-404a refrigerants. The goal of having two heat exchangers is that the cold outgoing air cools down the hot incoming air and reduces the size of compressor required. At the same time the increase in the temperature of outgoing air prevents re-condensation.
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Refrigerated Air Dryers manufacturers in mumbai.