PSA Air Dryer

Bellelli Engineering design and supply Instrument air compressor packages including drying system, to produce dry air with a dew point lower than -40°C at pressure.

A PSA Heatless air dryer is based on Twin Towers heatless type and use the property of the desiccant material for the adsorption of gas humidity during the drying phase at operating pressure and for its transfer during subsequent regeneration phase at atmospheric pressure.

A part of dry air, drawn from one tower, which is in the drying phase, is expanded inside the tower to be regenerated and then is vented to the atmosphere together with the humidity removed from the desiccant.