Atlas Copco launches three new desiccant air dryer ranges

The new products include two ranges of heatless desiccant dryers: the CD25+ ─ 145+ and the CD110+ ─ 300+ ranges are based on simple compact design and working principle to guarantee reliability even in the harshest operational environments. The third new range, the heat-reactivated blower purge dryers BD100+ ─ 300+, is built for energy-efficiency and endurance. By using heated ambient air for regeneration, this dryer range keeps energy costs to a minimum because there is a lower incidence of purge air losses.

Superior energy efficiency
Energy efficiency is achieved through low pressure drops and delayed dryer cycles – the optional feature of dewpoint dependent purge control minimises purge air losses by only switching over the unit’s desiccant towers when they are fully saturated with moisture, rather than on a fixed time interval. High performance and a constant pressure dewpoint ─ even at full load ─ is guaranteed under any operating condition.

The new CD+/BD+ series contribute to energy savings and carbon footprint reduction by minimising pressure drops* and optimising the regeneration cycle. The 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. Thanks to the dewpoint dependent purge control switching, dryer cycles are delayed with the result that energy savings of up to 90% are achieved in contrast to more traditional switching systems.

The CD+ dryers use a quantity of the dried air to regenerate their towers and are suitable for operation under hazardous conditions since they do not use ambient air. The BD+ unit mainly uses ambient air to dry its desiccant and, in comparison to a similar installation with the CD+ range, its blower purge technology makes it possible to downsize both the BD+ desiccant dryer and the compressor, resulting in major energy savings.

High performance under any conditions
While Atlas Copco engineers have focused on a simple design for the CD25+ ─ 145+, the robust vessels and galvanized flanged pipe connections of the CD110+ ─ 300+ and BD100+ ─300+ guarantee efficient regeneration while minimising leakages and keeping pressure drops low.

By monitoring all parameters of the desiccant air dryers with the Elektronikon®
Controller (not included on the CD25+ ─ 145+ units), a constant pressure dewpoint down to -70°C/-100°F is guaranteed, even at 100% load. This ensures absolute dry air for vulnerable applications, such as automatic pharmaceutical processes that require the highest level of reliability 24/7.

Reliable dry air
Installation and service are simplified thanks to easily accessible internal components, straight-forward installations and the use of durable materials, such as butterfly valves. Maintenance intervals are extended and costly production downtime for installation and servicing is kept to the minimum.

The Elektronikon® controller is equipped with a user-friendly interface and navigation system. In addition, free online visualisation enables remote monitoring, enabling accurate anticipation of operating and maintenance needs.

Sustainable Productivity
The new CD+ / BD+ series reflect Atlas Copco’s primary focus on sustainable solutions and on increasing energy efficiency while offering reliable performance for every application. The three new desiccant compressed air dryer ranges, CD25+ ─145+, CD110+ ─ 300+ and BD100+ ─ 300+ , increase Atlas Copco’s product portfolio, making it possible to offer the best quality air solution for compressed air needs.