The PDAD series of adsorption dryers is used when a pressure dew point of below -20 °C to -70 °C is required. It is ideal for decentralized compressed air drying.
Adsorption dryers have two cartridges filled with drying agent. The moist compressed air flows alternately through each of the two cartridges, and the water accumulates on the surface of the drying agent. After a specified time, the air flow is switched to the other cartridge and part of the dried air (purge air) is used to regenerate the drying agent in the first cartridge.
The PDAD adsorption dryers are suitable for use as individual devices and can be installed in MS series service units using the simple modular system of the MS series.