Everything About 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 check for the best cooling air dryer via the web.

Refrigerated Air Dryer

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Excess water in compressed air, in the liquid or vapor phase, can cause various operational problems for compressed air users. These include freezing of external air ducts, corrosion of pipes and systems, failure of pneumatic tools for process control, contamination of processes and products, etc.

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. 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.

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.