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Atlas Copco Heatless desiccant dryers CD 20+-335+ series – Cerades™ efficiency & continuous operation

1. Cerades™

The CD 20⁺-335⁺ is the first dryer to use the revolutionary Cerades™ desiccant developed and patented by Atlas Copco. Compressed air is channeled straight through the solid desiccant, as opposed to pushing its way through loose desiccant beads. As a result, you enjoy:

• Lower energy costs and a minimal pressure drop thanks to the straight, no-resistance air flow.

• Better air quality and longer service intervals because Cerades™ lasts longer than loose desiccant, which decays significantly over time.

• Environmental and health protection, lower operational costs, and less downtime as Cerades™ eliminates desiccant dust and the need to filter it out to reach ISO 8573-1:2010 Class 2 for particles.

• Trouble-free installation and continuous operation as Cerades™ can be mounted horizontally.

• A smaller dryer footprint with Cerades™ can handle a higher air flow.

2. High-efficiency operation

Designed to perform reliably at continuous operation of 100% air flow, whereas most dryers on the market are only built to work at 70% to 80%. This includes a constant pressure dew point of -20°C/-5°F, -40°C/-40°F, -70°C/-100°F as standard. The pressure dew point can also be adjusted for seasonal or application changes

3. Advanced energy savings

• Up to 70% less pressure drop compared to previous model.

• 15% purge air reduction compared to the standard CD model.

• Optional Dew Point Dependent Switching. The dryer will only switch to the next tower when the desiccant is saturated, as measured by the dew point sensor. During this cycle time extension, the dryer consumes no purge air, resulting in a significant reduction in energy use.

• Dew point can be set to the requirements of your application to reduce energy consumption.

4. Unique manifold/valve design

• Large pipe diameter minimizes pressure drop for advanced energy savings.

• Electronically operated 3/2 valve reduces risk of breakdowns and offers reliable control during air flow fluctuations. With this new design, vessel switching operates unfailingly even in rough conditions.

• Service openings ensure easy maintenance of the moving parts of the valve system

5. New silencing design

Innovative silencing system with large front silencer provides quiet performance with minimal pressure drop (CD 20+ -335 +).

6. Advanced control and monitoring system

• Advanced DC 1 controller (standard for CD 5+ -30 +) and state-of-the-art Elektronikon® Touch control and monitoring system (standard for CD 30+ -335 +) with warning indications, dryer shutdown and maintenance scheduling.

• Standard SMARTLINK remote monitoring to maximize air system performance and energy savings with Elektronikon® Touch controller.

• Pressure dew point sensor for Dew Point Dependent Switching standard with Elektronikon® Touch

7. Service and maintenance-friendly

• Compact Cerades™ blocks allow for quick and easy maintenance.

• Loose desiccant decomposes over time, releasing a fine dust into the air system, which requires extra filtration and maintenance. This dust is also a health and environmental hazard, as it circulates in the ambient air during desiccant replacement. Cerades™ eliminates this dust problem

8. Integrated inlet filter

• A highly efficient UD+ pre-filter prevents oil contamination to increase desiccant lifetime.

• For mounting directly on the inlet of the dryer to ensure a low pressure drop.

• Easy to assemble and maintain. No extra piping and filter connections are required.

• An after-filter is not required to reach ISO 8573-1:2010 Class 2 for particles. To reach Class 1, a PDp+ filter is recommended.

9. Nozzle purge set

Offers flexibility in optimizing regeneration pressure. Standard is 7 bar; 4-bar, 5.5-bar, 8.5-bar, 10-bar, 11.5-bar, 13-bar and 14 bar nozzles come as separate parts