Compressed air systems inherently suffer from performance and reliability issues, most of which can be directly attributed to water in one form or another. In fact, water accounts for up to 99.9% of the total liquid contamination found in a compressed air system.

Parker’s PTM Series Thermal Mass Cycling Refrigerated Compressed Air Dryers have been designed for the efficient removal of water from compressed air in accordance with ISO 8573-1. These dryers are equipped with a thermal storage medium that is chilled by the refrigeration circuit. Once the thermal mass has been chilled to a predetermined temperature, the refrigeration compressor shuts off (energy savings). The air is now solely dried by the thermal medium. Once the thermal mass is heated to a certain temperature, the refrigeration compressor restarts to cool it back down. This cycling design saves on operation costs whenever the inlet conditions to the dryer are less than the full load conditions.

A refrigerated compressed air dryer is always sized to achieve its design performance at the user's most extreme working conditions. This maximum condition, however, is very rarely achieved during everyday operation due to varying air compressor loads during a working day and fluctuating ambient temperatures throughout the year. Parker’s PTM dryers continually and precisely adapt to actual operating conditions, ensuring consistently low dewpoints at the lowest operating costs.

Additionally, Parker’s PTM dryers utilize a patented “all-in-one” aluminum heat-exchanger, which has been designed to deliver industry leading low pressure drops. The heat-exchanger utilizes large open channels and no-interconnecting piping to enable free, un-interrupted passage of air through the dryer, significantly reducing the hidden cost of pressure drop.

Features & Benefits:

• Thermal mass design with cycling mode of operation delivers costs savings during times of low or no load.
• All-in-one heat exchanger design delivers low pressure drop, which results in lower operational costs.
• High-quality components result in less frequent maintenance.
• Suitable for all compressed air applications.
• Compatible with all compressor types, including variable flow.
• Significantly contributes to the indirect reduction of CO2 into the environment.
• Digital display of dewpoint temperature, thermal mass temperature and diagnostic codes for troubleshooting.
• Deliver consistently low dewpoints in accordance with Iso 8573-1.
• Manufactured in facility certified to ISO9001 and ISO14001.
• 3rd party performance verified by CAGI.

Sizing and Selection:

To ensure quoted air purity performance is met, a compressed air dryer must be sized correctly for minimum operating pressure, maximum inlet temperature and maximum inlet flow rate using the correction factors found in the Product Information Sheet.
For more information or a detailed discussion about your specific requirements please contact Parker or an authorized Parker distributor.