Mikropor MHL Series Heatless Regenerative Desiccant Air Dryer

The Mikropor MHL Series Heatless Regenerative Desiccant Air Dryer is engineered to deliver reliable, high-performance compressed air drying for demanding industrial applications. Featuring a twin-tower heatless desiccant design, the MHL Series provides a consistent -40°F pressure dew point and is available in capacities ranging from 80 to 5000 SCFM. The MHL Series helps protect sensitive equipment, prevent moisture-related damage, and maintain air quality in critical production environments. Standard pre-filtration and post-filtration on models up to 3000 SCFM provide enhanced desiccant protection and help prevent downstream desiccant dust migration.

The twin-tower design allows for the continuous adsorption of water vapor from compressed air using high-crush-strength desiccant with a high surface-area-to-volume ratio. Drying is accomplished by passing compressed air through one desiccant bed, where moisture is adsorbed, while the other bed is simultaneously regenerated using expanded purge air.

Desiccant regeneration is accomplished without the use of heat. The saturated bed is dried by diverting a small portion of dry outlet air at near-atmospheric pressure. The purge flow rate is adjustable to accommodate specific outlet conditions and desired dew points. The dry air flows in the opposite direction through the wet bed, sweeping away the water vapor previously absorbed by the desiccant. MHL dryers also ensure pressure equalization between the twin towers before switching, helping maintain reliable and continuous operation.