Desiccant Air Dryers


No internal or external heaters are used. Purge air requirement can range from 10 to 18 percent of the total dryer rated air flow.

Blower Purge Heated

Centrifugal blower and high efficiency heater eliminate the use of valuable compressed air normally used to for desiccant regeneration. The completely system uses the blower to pull ambient air that then passes through a heater. Hot air above 392 deg F regenerates the moisture inside desiccant bed and strips it completely of all moisture. Advanced control systems available that will monitor dewpoint, adjust heating / regeneration accordingly thereby providing valuable energy savings.


  • Very low dewpoints can be achieved without potential freeze-up
  • Moderate cost of operation for the dewpoints achieved
  • Pneumatically operated controls can be used on heatless-type dryers installed in remote, mobile, or hazardous locations