All About Industrial Air Dryers

A compressed air dryer is a device for removing moisture from compressed air. Compressed air dryers are widely used in a variety of industrial and commercial settings.

The process of compressed air concentrates atmospheric pollutants, including water vapor. This increases the dew point of compressed air compared to free atmospheric air and causes condensation in the ducts as the compressed air cools after the compressor. You can also look for the best refrigerated air dryers through the web.

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There are several types of compressed air dryers. Their performance is usually determined by the dew point.

Refrigerator dryer

Two heat exchangers are used in the refrigeration dryer, one for air-to-air and one for air conditioning. But there are also TRISAB heat exchangers that combine both functions. The compressor used in this type of dryer is usually airtight and the gas most commonly used is R-134a. 

The purpose of the two heat exchangers is that the cold exhaust air cools the incoming hot air and reduces the required compressor size. At the same time, an increase in the outlet temperature prevents new condensation.

These devices operate at lower dew points, usually in the 35-40°F range. In conjunction with an optional "cold incorporation filter", they can circulate compressed air at lower dew points.

Several manufacturers offer compressors with built-in refrigeration dryers, but these have mixed market acceptance.

Typically, an incorporation pre-filter is installed immediately before the refrigeration dryer to remove lubricating oil and other contaminants that may contaminate the dryer heat exchanger.