How delair compressed air dryers work?
The delair DB compressed air dryers use porous materials (desiccant) to adsorb water molecules from the compressed air. Periodically, the desiccant is regenerated (adsorbed water driven off) for re-use.
To allow continuous operation,　two desiccant towers are used,　one adsorbing moisture while the other is being regenerated.
For regeneration,　heated ambient air is used instead of expensive purge air to desorb moisture from the rege-nerating bed.
No purge loss means:Dryer“in”is dryer“out”.

No purge air loss and no dewpoint peak
Regeneration is carried out by means of heated ambient air. therefore no purge air is used,so dryer“out”.
Pressure dewpoint and outlet tempera-ture of the dried compressed air will not exceed the specifided conditions (no peaks during switch-over),due to delair’s regeneration system ,co-current cooling and parallel drying.

Pressure drop below 0.1 bar
Due to the unique design of the com-pressed air dryer, i.e. vessels, piping, strainers and butterfly valves,this type of dryer has a pressure drop below 0.1 bar.

Low power consumption
The adsorbers and the regeneration heater are insulated so that the heater achieves optimum energy efficiency. The regeneration of the air dryer is thermostatically ended. The electrical energy consumption is matched to actual moisture loading of the desic-cant. As the required heat for regene-ration is equally distributed over the desiccant bed,no“hot spots” can occur,and excessive aging of the desiccant will be avoided.