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CD+ and CD desiccant dryer ranges now offer more energy efficiency

Atlas Copco has introduced two new dryer ranges, the CD 25+-260+ and the CD 25-260, that are designed to meet the strictest energy requirements. The innovative heatless desiccant dryers deliver increased efficiency and reliable continuous operation for industrial applications.

Reading time: 4 minutes (600 words)

New desiccant dryer ranges designed to meet strictest energy requirements

Keith Barron, National Sales Manager at Atlas Copco Compressors

The new CD+ and CD dryers are available now in inlet capacities ranging from 25-260 l/s, and have been launched to provide our customers with maximum flexibility when it comes to selecting an energy efficient dryer for their specific needs.
Keith Barron , National Sales Manager at Atlas Copco

The CD+ dryer range delivers high efficiency for applications requiring a continuous supply of compressed air. Models in the range offer minimal purge loss and pressure drop at a constant pressure dewpoint of -20 °C, -40 °C or -70 °C as standard. Meanwhile, dryers in the CD 25-260 range provide a constant pressure dewpoint of -20 °C or -40 °C.

The CD 25+-260+ and the CD 25-260 are designed to meet the strictest energy requirements

The CD 25+-260+ and the CD 25-260 are designed to meet the strictest energy requirements

CD+ and CD dyers are designed to perform reliably at 100 per cent airflow, whereas most dryers on the market are only built to work at 70-80 per cent. As a result, customers enjoy a constant pressure dewpoint and process, even with fluctuating air demand. Desiccant dryers consist of two towers filled with an adsorbent material that removes moisture from the compressed air. The desiccant has a finite adsorption capacity. Therefore, while one tower is drying air, the other is dried out in a process called regeneration. Heatless desiccant dryers use compressed air for purging during regeneration. If this process is executed inefficiently, the cost of operating a heatless desiccant can be significant. For this reason, the new CD+ and CD dryers have been designed to offer a very low pressure drop – below 0.2 bar for most models – as well as an efficient regeneration process to keep operational costs low.
CD+ and CD dyers are designed to perform reliably at 100 per cent airflow

CD+ and CD dyers are designed to perform reliably at 100 per cent airflow

CD+ and CD dryers come equipped with a state-of-the-art control system with optional Dewpoint Dependent Switching (DDS). With DDS, a dewpoint sensor will delay switching towers until necessary. This cycle time extension can generate energy savings of up to 90 per cent, which significantly reduces the cost of operating the dryer. The controller also synchronises the dryer with the compressor, turning on/off when the compressor does. The dryers in CD+ and CD ranges feature a revolutionary new type of manifold. Its electronically-operated valve ensures dependable tower switching, even in rough conditions. Meanwhile, an intelligently designed strainer with “swirl” technology distributes the airflow optimally and decreases uneven wear of the desiccant. This robust and reliable design is a first in the industry and contributes to the minimal operating costs of the dryers. To increase work floor comfort, the dryers feature an innovative silencing system. The CD+ also features a large front silencer designed to reduce pressure drop. The CD+ and CD dryers were built for ease of use and flexibility. Desiccant bags allow for quick replacement without spilling adsorbent material. Additionally, outside service panels ensure quick and easy maintenance, so that service costs and downtime are kept to a minimum. A wide range of optional nozzles is available so that customers can optimise regeneration pressure and reduce the required compressed air.
The CD+ dryer range delivers high efficiency for applications requiring a continuous supply of compressed air

The CD+ dryer range delivers high efficiency for applications requiring a continuous supply of compressed air

Because of their simplicity and reliability, the CD+ and CD dryers are perfectly suited for extreme environments and applications with a high inlet air temperature. Typical applications include food and beverage, oil and gas, electronics, and pharmaceutical production. The CD 25+-260+ and CD 25-260 ranges are available now and will replace the previous CD 25+-145+, CD 32-190 and CD 220-300 models. Explore Atlas Copco's complete compressor dryer range.

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Editor’s Notes: Atlas Copco Compressors is the GB sales and service operation of the Atlas Copco Group providing oil-free and oil-injected stationary air compressors,  gas and process compressors, vacuum pumps, turbo expanders, nitrogen generators, air treatment equipment (such as compressed air dryers, coolers, and filters) air management systems, and custom designed engineered packages.  Atlas Copco Compressors’ sales and distribution network means that specialist compressed air advice and service is always within easy reach. A team of over 80 service engineers operates across the country, to ensure maximum running efficiency and minimum downtime at its customers' sites. In the United Kingdom, Atlas Copco also handles the sales and marketing of construction and mining equipment, portable compressors and electric power generators, industrial power tools and assembly systems – all backed up by a nationwide sales, distribution, service and maintenance network.  Atlas Copco is a world-leading provider of sustainable productivity solutions. The Group serves customers with innovative compressors, vacuum solutions and air treatment systems, construction and mining equipment, power tools and assembly systems. Atlas Copco develops products and services focused on productivity, energy efficiency, safety and ergonomics.  The company was founded in 1873, is based in Stockholm, Sweden, and has a global reach spanning more than 180 countries. In 2016, Atlas Copco had revenues of BSEK 101 (BEUR 11)   and about 45,000 employees. Learn more at https://www.atlascopco.com/en-uk/compressors. For all of the latest news follow us on Twitter via @AtlasCopcoUKIRE, connect with us on Facebook or find our Atlas Copco UK LinkedIn company page.
For further editorial information contact Chris Butcher on 01582 390980. For product or sales enquiries please contact 0800 181085. For further company information contact Joanna Canton Long on 01442 222240.

Air dryers CD Air and gas treatment Cd (dryers) CD+ Product Product Release Category 2017 United Kingdom Desiccant air dryers