Atlas Copco air dryers offer energy efficiency

Published: 21-Jan-2011

UK firm launches three new desiccant air dryer ranges

Atlas Copco’s three new energy efficient desiccant air dryer ranges for the pharmaceutical industry use desiccants to adsorb moisture from the compressed air, protecting production process equipment and helping to maintain end product quality.

The new products from the Hemel Hempstead, UK-based air compressor specialist include compact and simple heatless desiccant dryers in the CD25+ to 145+ and CD110+ to 300+ ranges, plus the heat-reactivated blower purge dryers in the BD100+ to 300+ range, which are built for energy-efficiency and endurance.

Atlas Copco says the CD+/BD+ series contribute to energy savings and carbon footprint reduction by minimising pressure drops and optimising the regeneration cycle. A pressure dewpoint sensor measures the remaining humidity in the compressed air, detects when the active tower is completely saturated and then switches the functions of the two dryer towers at the optimal moment. Owing to dewpoint dependent purge control switching, dryer cycles are delayed resulting in energy savings of up to 90%.

The CD+ dryers use a quantity of the dried air to regenerate their towers and are able to operate under hazardous conditions since they do not use ambient air.

The BD+ unit mainly uses ambient air to dry its desiccant and its blower purge technology makes it possible to downsize both the BD+ desiccant dryer and the compressor, resulting in major energy savings.

Remote monitoring for the CD110+ to 300+ and BD100+ to 300+ ranges is possible using the Elektronikon controller.

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