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For CompAir, quality and efficiency are just as important for compressed air treatment as they are for compressed air generation.
Just like CompAir compressors, the CD-Series refrigerant dryers also provide a consistently high performance with optimum efficiency for many industrial compressed air applications. They are carefully selected depending on working conditions with continuous dew point monitoring enabling reliable operation with the lowest possible pressure losses and running costs. When it comes to compressed air treatment, modern, reliable technology and compact dimensions make the CD-Series the preferred choice for every application.
The CD-series refrigerant dryers deliver a comprehensive, cost-effective solution to multiple applications across a wide range of sectors including automotive, manufacturing, petrochemical, oil and gas, dry cleaning and light processing to name a few.
Impressive return on investment and operational reliability
The use of clean dry compressed air ensures high levels of reliability, guarantees that quality standards are met, and can reduce production costs. CompAir offer a range of solutions for drying utilising modern cooling technology, the CD series cater for a wide range of airflows with models from CD4F to CD1920F covering air flow rates from 0.42 m³/min to 191.67 m³/min.
Modular Desiccant Dryer Series
High-performance desiccant air treatment
Desiccant technology
Desiccant dryers work on the principle of moisture always migrating to the driest medium possible. Therefore, water vapour is removed from compressed air by passing it over an adsorbent desiccant material. As the air contacts the adsorbent material, water vapour transfers from the wet air to the dry desiccant, however, adsorbent materials have a fixed adsorption capacity and once this capacity is reached, they must be regenerated or replaced. Therefore, to provide a continuous supply of clean, dry compressed air, adsorbent dryers utilise two chambers of desiccant material and at any one time, whilst one chamber is on-line, drying the incoming compressed air, the other is either off-line, being regenerated or is re-pressurised, ready to come on-line.
All desiccant dryers remove water in this manner. The energy consumed by a desiccant dryer can be directly attributed to the method used to regenerate the adsorbent material. The CompAir A-Series dryers utilise the heatless PSA method to regenerate the adsorbent material. (Please download the brochure to learn more about this process).

The new downstream portfolio manufactured by CompAir utilising the latest technology, provides an energy efficient solution at lowest life cycle costs. The same quality, performance and efficiency standards delivered by the compressors can now be enjoyed from the air treatment range.
Investment in a manufacturing site in addition to the support teams, ensures that compressed air operators don’t need to worry about the quality of their compressed air – quality that is key to ensuring maximum production efficiency and investment protection.
Advantages at a glance:
- Robust and reliable industry-proven design
- Suitable for all industries and applications - some desiccant dryer regeneration methods prevent their use in certain industries/applications
- Lower capital investment and reduced complexity compared to other dryer regeneration methods
- Lower maintenance costs in comparison to other dryer regeneration methods
- No heat, heaters, or heat-related issues
A-Series Product Overview
Product range of the AX1M -40°C to AX50M -40°C Series (flowrates from 0.08 m³/min)

For many oil-free applications the heat-of-compression drying process is the most energy efficient way. CompAir offers a range of highly efficient HOC dryers offering lowest operating costs and extremely low-noise operation.
- Low pressure drop
- Low operating costs
- Low noise levels
- Pressure dew point down to -40°C






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