# High Pressure Adsorption Dryer DHW (A)

High Pressure Adsorption Dryer DHW 50 bar

Adsorption dryers of the DHW series are designed for drying compressed air and nitrogen to pressure dew points of -20°C to -55°C (depending on the design) at operating pressures of up to 50 bar.

## Function

For drying the compressed air, i.e. “adsorption”, the compressed air flow is led through a vessel filled with desiccant. The desiccant extracts moisture from the compressed air and stores it in its structure until the desiccant is saturated with moisture. The saturated desiccant then has to be regenerated, i.e. the moisture stored in the structure has to be “removed” before the desiccant can be used for drying again.

Continuous operation of an adsorption dryer therefore requires two vessels that are operated alternately. One vessel is used for drying the compressed air (adsorption) and the other vessel for regenerating the desiccant. For the DHW series the change interval between adsorption and regeneration is 10 minutes at nominal conditions.

High Pressure Adsorption Dryer DHW 100-420 bar

Adsorption dryers of the DHW series are designed for drying compressed air and nitrogen to pressure dew points of -20°C to -55°C (depending on the design) at operating pressures of up to 420 bar.

## Function

For drying the compressed air, i.e. “adsorption”, the compressed air flow is led through a vessel filled with desiccant. The desiccant extracts moisture from the compressed air and stores it in its structure until the desiccant is saturated with moisture. The saturated desiccant then has to be regenerated, i.e. the moisture stored in the structure has to be “removed” before the desiccant can be used for drying again.