When warm, dry air is critical to the manufacturing process, air dryers are often installed as part of the plant's compressed air system. One of the most common designs is a non-cycling direct expansion refrigerated air-dryer. API Heat Transfer has developed the PCR, or pre-cooler, cooler, reheater, designed specifically to meet the needs of the refrigerated air dryer market.
The PCR is a compact multi-section all-aluminum heat exchanger featuring a brazed bar & plate design. The PCR pre-cools the incoming air using the cold air exiting the refrigerant section. It then final cools the air in the refrigerant section at which point the air stream enters a separation chamber to allow the condensed moisture to fall out. Since the air is reheated in the regeneration section, the final humidity remains below 25%.
API Heat Transfer makes a range of standard sizes or can custom design specific range of PCRs to meet the demands of high-volume OEMs.
Standard model range