QPNC-42 Air Dryer

Quincy 42 CFM Air Dryer

Non-cycling dryer: In a non-cycling dryer, the refrigerant circulates throughout the system at the same rate, regardless of the load of the air entering the dryer. Because ambient air temperatures and compressed air flow fluctuate, a hot gas bypass valve regulates the temperature to prevent the machine from freezing. Non-cycling dryers work best paired with rotary screw air compressors.

Here’s how refrigerated dryers work.

1. Air enters the refrigerator and travels to an air-to-air heat exchanger. Here, the outgoing cold air pre-cools the warm air.
2. Next, the air enters a refrigerant-to-air heat exchanger, which cools it to around 37 degrees Fahrenheit.
3. The water droplets separate from the cold air, and the unit expels the moisture. Draining also removes dirt and oil.
4. Finally, the air passes back through the air-to-air heat exchanger. The incoming warm air reheats the cooled air leaving the air dryer. The newly dried air has a pressure dew point somewhere between 35 and 50 degrees Fahrenheit. See specifications for each Quincy model to find out the exact dew point for a particular dryer.