Sturdy in construction
Requires less maintenance
Purge air loss is too high in high capacity air dryers, so high pressure dry air is used for air purge which contributes to addition of power required to compress the air. These process takes place at a very low pressure hence purge air compressing cost can be eliminated. Blowers are used for regenerating air which is heated in the heating chamber increasing its moisture carrying capacity. Furthermore, for regeneration hot air is passed through the desiccant bed.
Cost effective for high capacities.
Dew point upto (-) 60 Deg C can be achieved.
Economical in range from 1000 CFM onwards