Refrigerated Air Dryers

R4 Direct Expansion Refrigerated Air Dryers

nano R4 direct expansion refrigerated air dryers allow customers running a consistent volume of compressed air the ability to achieve excellent dew point performance and save energy.

The high-quality SSX stainless steel heat exchangers (multi-module NDX 1750 and up), environmentally-friendly refrigerants and reliable compressors make NDX the best value go-to air dryer in the industry.

Reliability is built in…and backed by our 2 year warranty with pre-filtration and non-corrosive piping installed.

Some of the many features and benefits:

  • patented large surface area heat exchanger boasts corrosion resistant construction and integrated moisture separator
  • simple to use CAREL digital microprocessor features dew point, high and low pressure and drain operation
  • powder coated aluminum panels are corrosion resistant
  • TXV ensures stable dew point performance even in changing ambient conditions
  • environmentally friendly R134a or R407C refrigerants are recognized as both efficient and safe
  • timed solenoid drain is fully adjustable and extremely reliable
  • small footprint, lightweight and ready to go out of the box
  • oversized condenser uses a high pressure fan switch to protect refrigeration circuit to provide visual high and low pressure alarms