Desiccant Air Dryers

The Aircel Ultrapac 2000® Heatless Regenerative Desiccant Dryer (3 - 60 scfm) heatless adsorption dryers is a complete purification system including pre-filter, dryer, after-filter, control system and automatic condensate drain and silencer. All components are factory sealed requiring minimum installation and almost instant start-up. This modular design of mechanical and electronic components reduces downtime with modular repair/replacement capability, and the compact footprint saves valuable space on the plant floor.

Heatless desiccant dryers, like all adsorption type dryers, use a desiccant to adsorb the water vapor in the airstream. In the most commonly used twin-tower design, one tower dries the air from the compressor, while the desiccant in the other tower is being regenerated to provide continuous operation. In the heatless desiccant dryer design, no internal or external heaters are used. Regeneration is achieved by using a partial stream of the dried air, expanding it to atmospheric pressure, and running it through the desiccant bed that is being regenerated. The standard regenerative desiccant dryer at 100 psig has a standard pressure dew point rating of -40°F and a dew point down to -100°F is available as an option.