Kaeser Compressors DC series of desiccant dryers

Kaeser Compressors has launched its latest generation of its smaller heatless regenerated desiccant dryers for flow rates from 0.2 to 1.13 m³/min. Compact and efficient, the enhanced models are suitable for compressed air supply systems serving sensitive industrial processes such as those found in the food, beverage, medical and pharmaceutical industries, to name only a few.

The DC series of desiccant dryers from Kaeser Compressors can lower the pressure dewpoint of the compressed air to -70°C. They deliver frost protection for control valves and lines while producing dry compressed air for sensitive processes at minimal cost.

The DC 2.0 to 11.3 models can operate in, for example, 10 min cycles to achieve pressure dewpoints down to -40°C. During this process, the dryer switches between the two desiccant chambers only once every 5 min. This reduces the number of switching sequences between the chambers and resulting material wear on the valves and desiccant.

Moreover, long cycle times additionally reduce the amount of compressed air required to restore pressure following the desiccant regeneration phase. As an example, whereas 7.6% of the compressed air must be diverted for a 2 min cycle, this proportion falls to just 1.3% with the 10 min cycle of the small DC units. This reduction makes them efficient, saves energy and extends desiccant service life.

Other features include: on/off control; Eco Control Smart Controller, Modbus TCP interface for quick and easy network set-up; silencer for quiet operation; space-saving, easy to install, protective all-round enclosure makes the units suitable for decentralised compressed air treatment; and also suitable for wall installation.