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R4 Direct Expansion Refrigerated Compressed Air Dryers

Our DXR direct expansion refrigerated air dryers use a refrigerant circuit and heat exchanger(s) to pre-cool air, refrigerate it to condense out moisture vapor, and then re-heat the air to prevent pipe sweating downstream.


This new line of refrigerated dryers are built with an aluminum block heat exchanger with integrated water separator and air-to-air heat exchanger ensures maximum cooling efficiency.


Easy to Install > plug and play design fully packaged into a simple compact design fitting into the smallest spaces

Robust Construction > powder coated steel panels for optimum corrosion resistance

Performance Validated Filtration > pre- and after filter packages available to provide additional energy savings and improved air quality


support materials 
R4 direct expansion refrigerated compressed air dryers

how to size a compressed air dryer
ISO 8573 compressed air quality standards

R4 DXR brochure

nano refrigerated compressed air dryer application worksheet

ISO 8573 compressed air quality standards


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