HL heatless desiccant dryers use twin desiccant towers with strategically positioned valves to dry compressed air. The simple technology of heatless dryers divert a portion of dried compressed air to an off-line tower. The dry air then flows through and regenerates desiccant. Although operating costs run higher than the heated desiccant dryers, the HL series requires the lowest capital investment.
Ingersoll Rand Industrial Technologies / Air Motors