7. OPERATING PRINCIPLE:
● The DHL series of regenerative adsorption dryers consists of two tanks filled with
Activated Alumina. At any given time, one tower will be drying the compressed air
while the other tower is regenerating the saturated desiccant bed (Activated
Alumina). A small portion of the dry air (termed Purge Air) is used for the
regeneration of the saturated desiccant. The H2O that is stripped from the desiccant
bed is purged into the atmosphere through the purge exhaust valve and the purge
exhaust mufflers.
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