Heated Purge Dryers


Model: KED Series
Flow rate: 300 to 3200 scfm
Pressure dewpoint: down to -4° F

Kaeser Heated Purge (KBD) Dryers are heated regenerative desiccant dryers that produce dewpoints as low as -4° F. Using activated alumina and large, specifically designed desiccant beds, these dryers cycle air through twin towers and alternately drying the air via adsorption and regenerating the "wet" desiccant. The KEDs provide lower oepratings costs by reducing the amount of purge air used for regeneration. Using only 7% of compressed air for purge air, KEDs heat the dry air to increase its capacity to hold moisture and regenerate the desiccant.


  • Reliable dewpoints as low as -4° F
  • Excellent energy savings by using only 7% purge air for regeneration
  • Spherical crush resistant, activated alumina desiccant for long service life and minimal dusting
  • Large desiccant beds ensure consistent dew points and are specifically designed to reduce channeling
  • Reliable controls and instrumention meets NEMA 4 standards
  • Color change moisture indicator
  • ASME stamped pressure vessels rated for 150 psig at 450° F
  • Standard Pressure relief valves meets ASME Section VIII
  • Standard stainless steel support screens filter out large contaminants and protects valves
  • Stainless steel air diffusors help prevent channeling