To avoid pressure losses, rejects and production downtime, air drying is unavoidable. Corrosion is a permanent danger for every compressed air line, every consumer and its entire production. Therefore: Rely on optimal drying on our part to reduce the danger of moisture to a minimum.

Drying principles

There are several possibilities for drying the compressed air:

  • Refrigeration dryer: A heat exchanger system cools the compressed air down to a few degrees above 0°C. Due to the lower water storage capacity of cold air, the contained water vapour condenses to water.
  • Adsorption dryer: The water vapor in the compressed air is bound by the drying agent of the adsorption dryer.
  • Membrane dryer: The compressed air flows through polymer hollow fiber membranes where the condensate diffuses.
The pressure dew point

The pressure dew point (DTP) is a measure for the dryness of the compressed air.

It indicates the temperature up to which the compressed air can be cooled down without the moisture it contains condensing.

Dryers in comparison
Refrigeration dryerAdsorption dryerMembrane dryer
Designstandardcold Regenerating

warm regenerating

Applicationindustrypharmaceutical industry, food industry, beverage industry, electrical industrysmall consumers
Principle of operationcondensation water is removedmoisture is absorbedsieving through membranes
Pressure dew point3°C-20°C to -70°C-20°C
Purity class according to ISO 8573-143-13
Note for planningVolume flow

Operating overpressure

Ambient temperature

Compressed air inlet temperature

Air consumption

Purge air/regeneration air


Air consumption

Purging air