Membrane Dryers

Learn more about our different membrane dryers here below.

Membrane dryers rely on a process called selective permeation. When wet compressed air enters the dryer’s cylinder, the membrane coating allows water vapor to permeate through the membrane wall and collect between the fibers. At the same time, dry air makes its way inside the fibers in the cylinder at almost the same pressure as the incoming wet air. The permeated water is then vented out of the cylinder.

That air is then reheated to about room temperature in the air-to-air heat exchanger. That lowers the pressure point of the outgoing flow and prevents the formation of condensation on the outside of the piping system. This heat exchange between ingoing and outgoing compressed air therefore also reduces the required cooling capacity of the refrigerant circuit by lowering the temperature of the incoming compressed air.
 

As the most popular drying technology for compressed air, the applications for refrigeration dryers are nearly endless. 

Unlike more complex drying systems, membrane dryers have a straightforward design with no moving parts, which substantially reduces the likelihood of mechanical failures and wear-and-tear. This inherent simplicity means there's less that can go wrong, leading to fewer service interruptions. Routine maintenance primarily involves periodic checks and occasional cleaning, which can often be performed quickly and without specialized skills. Additionally, the durability of the membrane material itself contributes to the longevity of the system, further diminishing the need for frequent servicing.
 

This low maintenance aspect is not only convenient but also translates into lower operational costs over the dryer's lifespan, as the expenses and downtime associated with repairs and parts replacement are significantly reduced. For industries where continuous, uninterrupted operation is crucial, the reliability and minimal service requirements of membrane dryers make them an attractive choice for ensuring consistent air quality without the burden of intensive maintenance.