refrigerated air dryer

Air compressors are frequently employed in industrial settings to produce a consistent flow of compressed air for various activities. Nevertheless, moisture and other pollutants found in compressed air can harm machinery, degrade the quality of products, and endanger the health and safety of workers. To ensure that the compressed air is dry and free of moisture and pollutants, it is crucial to install an air drier in the compressed air system.

The refrigerated air dryer, which employs a refrigeration cycle to chill compressed air and condense the moisture in it, is one of the most often used types of air dryers. After being reheated, the dry air is then transferred to the machinery or procedure farther along. Refrigerated air dryers are a popular option for a variety of industrial applications because they are easy to use, dependable, and effective.

How Refrigerated Air Dryers Work

Refrigerated air dryers work on the premise that by lowering the temperature of compressed air, moisture will condense into liquid. By running the compressed air through a heat exchanger where it is cooled by a refrigerant—typically a fluorinated gas like R134a or R404a—the cooling is accomplished. The extra water vapour in the air condenses into liquid droplets as it cools, and these liquid droplets are subsequently separated from the air by a separator.

After that, a second heat exchanger is used to reheat the dry air to the correct temperature by allowing it to absorb heat from warm air that has just finished the refrigeration cycle. The equipment or process further downstream receives the reheated air.

Benefits of Refrigerated Air Dryers

Refrigerated air dryers are a common option for industrial applications because they provide a number of advantages. First of all, they are straightforward and simple to install, use, and maintain. They can be used by any qualified technician and don’t need any specialised training or abilities to use.

Second, refrigerated air dryers are quite effective; their normal dew point is between 35 and 40 degrees Fahrenheit. This means they can offer dry, clean air for a variety of applications by removing the majority of moisture from compressed air.

Lastly, there is little need for maintenance or downtime because chilled air dryers are dependable and have a long service life. They can run constantly for extended periods of time without experiencing any issues because they are made to handle tough industrial settings.

Last but not least, chilled air dryers are economical in terms of both original investment and continuous operational expenses. In comparison to other types of air dryers, they offer a lower total cost of ownership and can result in significant energy savings by lowering the need for downstream air treatment and equipment maintenance.

Applications of Refrigerated Air Dryers

Refrigerated air dryers are utilised in a variety of industrial processes, including as the production of food and drink products, medicines, chemicals, electronics, and automobiles, among many other fields. In situations where compressed air is used for painting, spraying, or pneumatic tools, they are especially helpful because any moisture or pollutants in the air might degrade the quality of the finished product or harm the machinery.


In conclusion, refrigerated air dryers are a crucial part of industrial air compressor systems because they deliver clean, dry air for a variety of uses. They are a well-liked option for numerous businesses because they are straightforward, dependable, effective, and economical. A refrigerated air dryer is absolutely something to take into consideration if you’re thinking about putting an air dryer in your compressed air system.