How Do I Know Which Type of Air Dryer I Need for my Compressor?

February 19, 2019

Air dryers are used downstream of an air compressor to rid the compressed air of any moisture or humidity before it reaches your application or final product. Using air dryers is imperative in many applications such as the food/beverage industry, electronics manufacturing and spray painting in the automotive industry. 

But how do I know which type of air dryer I need for my specific air compressor?

Air dryers are sized based on your ambient temperature and incoming air, as well as the capacity of your air compressor. The larger the HP of your compressor, the larger the CFM will need to be on the dryer. Most importantly, you want to choose the right dryer based on the temperature of your environment. If the ambient temperature and incoming air are over 100 degrees Farenheit, typically a high-temp dryer is recommended. These dryers are recommended for use in hot climates such as Florida, Arizona and California, or for people who are using piston compressors or cast iron compressors that will heat up quicker than rotary screw compressors. If the temperature is less than 100 degrees Farenheit, a refrigerated dryer is best to use. These dryers are often used in manufacturing plants, auto shops, food manufacturing and breweries. Refrigerated dryers come in both cycling and non-cycling variants to fit the need of your application. These dryers are energy efficient and are the most popular dryer type.

If you need a high level of dry ambient air, a desiccant dryer would be used. Desiccant dryers can reach pressure dew points as low as -100 degrees Farenheit and are often used in very cold climates to avoid ice forming in pipes and applications. Desiccant dryers are also used in applications such as mold prevention, medical applications, textiles and food factories to keep the air as dry as possible. Thes dryers use desiccant material (similar to the non-edible packs you find in your newest shoe box) to adsorb and remove the humidity from compressed air. 

Air dryers are recommended for almost all compressed air applications, but determinding the right dryer for your business is important to keeping your production running as safely and efficiently as possible. To browse Pneumatech's dryer product lines, click HERE.