The effectiveness of refrigerated air dryer heat exchangers, and their pressure drop, are large elements of dryer operating efficiency. Dryers typically have a pre-cooler/reheater (air-to-air exchanger) followed by a chiller section. The pre-cooler/reheater functions as an economizer, recovering the chiller energy to pre-cool the incoming air and reheat the outgoing air to increase volume and prevent pipe "sweating" downstream. The more effective the pre-cooler/reheater, the lower the temperature at the inlet of the chiller, resulting in lowered energy consumption by the dryer.

At the same time, pressure drop dramatically impacts total operating cost for the compressed-air system. It is costly to make pressure, then waste it in frictional resistance within the equipment, such as wasting pressure within the refrigerated air dryer heat exchangers of dryers. Reducing the pressure drop associated with refrigerated air dryer heat exchangers is a key element in increasing the operating efficiency of the entire compressed-air system.

An additional consideration is that copper also has limitations in dealing with industrial atmospheric corrosive agents, which are concentrated by the air compressor and then converted into aqueous solutions in the condensate within the dryers.

Stainless steel, in coil and plate form, is an ideal material for refrigerated air dryer heat exchangers. In the proper design, with all-welded construction, it can be made into a refrigerated air dryer heat exchanger that is very effective, has a low pressure drop, and tolerates common atmospheric corrosives. A corrugated, refrigerated air dryer heat exchanger, takes a new approach to refrigerated air dryer heat exchanger technology. It's designed to be more efficient and contains no copper. The refrigerated air dryer heat exchanger utilizes a unique multi-path air-flow pattern that allows more air to pass through the dryer with less pressure drop. The new approach results in prolonged life and operational cost savings every year, with pressure drop as low as 1.48 psi across the entire dryer.