Atlas Copco Airpower secures ISO certification for UD+ QDT filter train

The company says that the two-in-one coalescing UD+ filter combined with the redesigned activated carbon tower QDT allows for an oil content far below 0.01 mg/m³, the maximum allowed total oil content for class 1. The filter train was tested by the TÜV Institute.

Atlas Copco says that the UD+ filter combines the reliability and performance of wrapped filters with pressure drops lower than pleated filters. This is claimed to result is a 40% energy efficiency improvement compared to traditional filters.

According to the company, the redesigned QDT activated carbon tower removes the residual oil vapours and odours from the compressed air supply. With optimization of the activated carbon material and internal flow path, the tower is claimed to improve energy efficiency by an average 65% while continuing to provide air purity, a small footprint and a long lifetime.

Atlas Copco Airpower secures ISO certification for UD+ QDT filter train

Atlas Copco's UD+ coalescing compressed air filter

Atlas Copco’s UD+ coalescing compressed air filter

Energy savings, efficiency gains and reliably clean compressed air are among the benefits from Atlas Copco’s UD+ coalescing compressed air filter

The UD+ is the newest addition to Atlas Copco’s extensive line of compressed air filter solutions. This two-in-one filter combines the reliability and performance of wrapped filters with a 40% reduction in pressure drops compared with pleated filters.

“Our compressed air solutions are of the highest quality, so our air treatment solutions should be too,” Paul Clark, business line manager, industrial air, said. “With the UD+, we have launched a compressed air filter innovation that saves space, energy and money without compromising on reliability and air quality.”

Traditionally, two inline filters are needed to bring oil aerosol and solid particles in the compressed air down to acceptable levels for most applications (ISO 8573-1 Oil class 1 and 2; ISO 8573-1 Solid particle class 1). The UD+ replaces those two filters, saving space and reducing pressure drops by 40%. Extensive testing has shown that the UD+ achieves the excellent air quality of two traditional filters, thanks to the glass fibre filter media package that is wrapped around the filter. This technology is not only more efficient, it also offers increased reliability over traditional, pleated filters, which are prone to cracking.

The UD+’s reliability and performances are certified according to ISO 12500-1:2007 and ISO 8573-2:2007 standards by TÜV Rheinland. Available models range from a capacity of 9 l/s to 8000 l/s.

Mark Venables

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Atlas Copco"s UD+ coalescing compressed air filter