Optimised for Class 3 air quality
Many applications require very dry, high-quality air with sub zero dew points. CompAir’s desiccant dryers are the best option for the most stringent requirements – ISO Class 1-2 with a pressure dew point (PDP) as low as -70°C (-94°F). However, ISO Class 3 air, with a PDP of -20°C (-4°F), is sufficient for a large portion of the market. For applications that only require Class 3 air, we've expanded our family of high quality air dryers with our CMT dryers. They combine the ease of maintenance and operation of a refrigerated dryer with the sub zero pressure dew points typically associated with a desiccant dryer. Please download our white paper at the bottom of the dryers homepage to learn more about the ISO classes and how the apply to compressed air. Please contact us directly to get further information on this topic.
Features
- Pre-Cooling
- Air enters the dryer through the pre-cooler/re-heater
- Regeneration
- Leaving the pre-cooler/ re-heater, the air enters the first heat exchanger for regeneration
- Drying
- With only 15% of the of the moisture remaining, the air now enters the sub zero dryer heat exchanger where it is cooled and dried to -20°C (-4°F) PDP.
- Reheating
- The air dried to -20°C (-4°F) PDP is reheated before exiting the dryer in two steps.
Please download the brochure under the downloads tab to learn more about these dryers


