Heated Purge Dryers

KAESER KED Series heated purge air dryers use an external heater to reduce purge air usage for efficiency and less compressed air waste. Solid state logic accurately controls inlet and purge valves which direct wet compressed air to the regenerated tower, and heated purge air to the tower in need of regeneration. The process of adsorption and desorption can be repeated several thousand times before the desiccant must be replaced.

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  • 300-3200 CFM
  • Pressure Dewpoint to -40°F


  • Excellent energy savings by using only 7% purge air for regeneration
  • Reliable controls and instrumentation meet NEMA 4 standards
  • Color change moisture indicator signals elevated dew point
  • ASME pressure relief valve
  • Optional Energy Management Controls to match energy use to compressed air demand