What Is a Refrigerated Air Dryer and How It Works

A refrigerated air dryer cools compressed air so water vapour condenses and can be drained away. It is the most common dryer for general industrial air.

The Refrigeration Cycle

  • Compressed air passes through an air-to-air heat exchanger.
  • Refrigerant cools the air to about +3 °C.
  • Condensed water is separated and drained automatically.

Why It Works

  • Cold air holds less moisture than warm air.
  • Cooling forces the excess moisture to condense.
  • The result is dry air at a stable dew point.

Maintenance

  • Clean the condenser and check the drain regularly.
  • Keep the room ventilated for efficient cooling.
  • Service the refrigerant circuit per the schedule.

What dew point does a refrigerated dryer give?

Typically +3 °C pressure dew point, which suits most general industrial applications.

Talk to an Engineer

Contact Panrui with your flow, pressure and air quality requirements to get a recommendation and factory quote for your project.