Filters for Compressed Air


The high efficiency filters threaded DD+ types, DDp, PD+, PDp, UD+ and QD have been specially developed by Atlas Copco to remove solid particles, liquid water and oil in varying degrees according to ISO 8573-1.

With these filters, substantially improves the quality of compressed air and give significant benefits of cost reductions.

Filter cartridge for compressed air filters


Cartucho filtrante para filtros de aire comprimido

 DD+ FILTERS: Coalescing filters for general protection that removes solid particles, liquid water and a maximum oil carry-over of 0.07mg/m3 and pressure drop of 180mbar.


 PD+ FILTERS: High-efficiency coalescing filters that remove solid particles, liquid water and a maximum oil carry-over of 0.008mg/m3 and a pressure drop of 215mbar. It must be preceded by the filter DD+.


QD FILTERS: Activated carbon filters to remove oil vapors and hydrocarbon odors, with a maximum residual oil content of 0.003 mg/m3 (0.003 ppm). These filters must be preceded by prior filtration.


UD+ FILTERS: 2-in-1 coalescing filters, with NAUTILUS filtration technology, reduces the pressure drop by 40% compared to the classic installation of a DD+ plus a PD+, which provides energy savings that reduces costs by 50% after one year of operation. 245mbar pressure drop. Reduces installation space and maintenance costs while reducing waste costs. UD+ filtration capacity certified according to ISO 12500-1 and ISO 8573-2:2018. Maximum oil content of 0.0009 mg/m3.


These filters have a surface treatment that protects against corrosion.

DD+, PD+ and UD+ types include an automatic air vent, while the QD a manual purge.

In sizes 50(l/s) and higher includes a differential pressure gauge to check the status of the filter cartridge, while the lower models have a pressure gauge.

All filters have security buzzer.

The filter cartridges are double o-ring seal to ensure that no internal leakage of unfiltered air.


Trabajos con pintura donde es imprescindible una buena filtración del aire comprimido


See more information at Atlas Copco website.

Filters for Compressed Air

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