Filtration, regulation and treatment of compressed air
Treatment of compressed air is an absolutely indispensable part of every professional compressor system. Why is it so important? Compressed air naturally concentrates dust particles from its surroundings, oil residues from the unit, and a huge amount of moisture that condenses into water. This combination forms an aggressive emulsion that is extremely harmful to any equipment connected downstream of the compressor.
- ✅ Corrosion protection: Prevents rusting of pipes and clogging of expensive pneumatic tools.
- ✅ Failure prevention: Clean and dry air eliminates seizing of moving parts and valves in automated lines.
- ✅ Cost savings: Thanks to our comprehensive air treatment program, you will multiply the lifespan of the entire system and avoid costly servicing or unplanned production downtimes.
We offer you everything from air dryers and filters to pressure regulators, separators, and cyclone separators. Find out more about how to properly filter and treat air in the text below.
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Basic pillars of compressed air treatment
🔹 1. Drying (Moisture Removal)
Removes water from compressed air and eliminates condensation in the distribution system.
🔹 2. Filtration (Removal of solid particles)
Ensures top air purity precisely according to ISO 8573 standard.
🔹 3. Pressure regulation
Ensures safe and constant output pressure for every application.
🔹 4. Condensate and oil separation
Efficient and ecological separation of residual hazardous liquids.
ISO 8573-1 Standard: What Quality Do You Need?
How to determine the compressed air purity required for your application? The main guide is the international ISO 8573-1 standard. It divides the quality of produced air into seven classes (0 to 6). Each class has a strictly defined maximum content of solid particles, water, and oil.
While for general workshop air, class 4-4-5 (order: particles – water – oil) is usually sufficient, the pharmaceutical, food, or chemical industries require absolute purity. We discuss this topic in detail in the article: How to Filter Compressed Air.
Step-by-step air treatment
The correct sequence of components is key! Immediately after the compressor, it is best to install an air dryer supplemented with pre-filtration (e.g., a cyclone separator) to capture coarse condensate. This is followed by fine filtration, the micron purity of which depends on your needs (different for a paint shop, different for a dentist).
At the very end of the line, the air is regulated to the required pressure. Don't forget that filter cartridges and granules have a limited lifespan. For measuring wear in professional filters, we therefore use clogging indicators or differential pressure gauges.
Further expert articles from our advice center:
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Product sorting
List of products
AAFS 2 1/2" microfilter for removal of micro impurities up to 0.01 um from compressed air according to ISO 8573-1 class 1. Body with easily removable container and designed for...
AAFP basic filter in 2 1/2" design to remove basic mechanical impurities up to 3 um from compressed air according to ISO 8573-1 class 6. Body with easily removable container and...
AAFM pre-filter in 2 1/2" design to remove fine impurities up to 0.1 um from compressed air according to ISO 8573-1 class 2. Body with easily removable container and designed...
Replacement microfilter cartridge with filtration capacity of 0.01 µm for OMEGA AIR AAFS-1500 and AAFS-1680 microfilters. Recommended replacement 12 months or every 4,000 MH and...
Replacement dust filter cartridge with 1 µm filtration capacity for OMEGA AIR AAFR-1500 and AAFR-1680. Recommended replacement 12 months or every 4,000 MH and when clogging of...
Replacement fine filter cartridge with 0.1 µm filtration capacity for OMEGA AIR AAFM-1500 and AAFM-1680 pre-filters. Recommended replacement 12 months or every 4,000 MH and when...
Replacement basic filter cartridge with 3 µm filtration capacity for OMEGA AIR AAFP-1500 and AAFP-1680. Recommended replacement 12 months or every 4,000 MH and when clogging of...
Replacement filter with activated carbon AAFA for OMEGA AIR AAFA-1500 and AAFA-1680. Absorption of residual oil, oil vapours and aerosols with a content of < 0.005 mg/m³ from...
The filters are used to remove the smallest mechanical impurities from compressed air up to 1 um according to ISO 8573-1 class 3. Connection by flange with DN80 clearance....
The filters are used to remove the smallest mechanical impurities from compressed air up to 0.01 um and oil according to ISO 8573-1 class 1. Connection by flange with DN80...
The filters are used to remove the smallest mechanical impurities from compressed air up to 0.01 um and oil according to ISO 8573-1 class 1. Connection by flange with DN80...
The filters are used to remove the smallest mechanical impurities from compressed air up to 0.1 um and oil according to ISO 8573-1 class 2. Connection by flange with DN80...
The filters are used to remove mechanical impurities from compressed air up to 3 um according to ISO 8573-1 class 6. Connection by flange with DN80 clearance. Designed for flow...
The filters are used to remove the largest mechanical impurities from compressed air up to 15 um according to ISO 8573-1 class 7. Connection by flange with DN80 clearance....
AAFB coarse filter in 2 1/2" design to remove the largest mechanical impurities up to 15 um from compressed air according to ISO 8573-1 class 7. Body with easily removable...
Replacement sintered bronze 15 µm filter cartridge for OMEGA AIR AAFB-1500 and AAFB-1680 filters. Recommended replacement 12 months or every 4,000 MH and when clogging of the...
AAFR dust filter in 2 1/2" design to remove dust impurities up to 1 um from compressed air according to ISO 8573-1 class 3. Body with easily removable container and designed for...
AAFA activated carbon filter in 2 1/2" version for absorption of residual oil, oil vapours and aerosols with < 0,005 mg/m3 from compressed air according to ISO 8573-1 class 1....
Replacement filter cartridge SFS-144V with filtration capacity of less than 0.01 um including bacteria and microorganisms. Filters the smallest impurities from industrial...
Designed for industrial painting applications, the AFSM-1756 filter cartridge eliminates paint deteriorating contaminants. Filtration capacity 0,1 um, maximum working pressure...
Replacement filter cartridge PFIW1 for filters (PF, HPF) with filtration capacity up to 1 um, working pressure up to 50 bar and flow rate up to 28,000 l/min. Operating...
Replacement filter cartridge PFN25 for filter with filtration capacity up to 25 um and working pressure 16 bar. Operating temperature up to 150°C. Made of stainless steel strainer.
Designed for industrial painting applications, the AFSS-1756V filter cartridge eliminates paint deteriorating contaminants. Filtration capacity 0,01 um, maximum working pressure...
Replacement PFA filter cartridge for filter with filtration capacity up to 0,1 um and working pressure 16 bar. Operating temperature up to 150°C. Contains filtering activated...
Replacement filter cartridge PFI1 for filter with filtration capacity up to 1 um and working pressure 16 bar. Operating temperature up to 150°C. Made of stainless steel strainer.
Replacement filter cartridge PFI20 for filter with filtration capacity up to 20 um and working pressure 16 bar. Operating temperature up to 150°C.
Replacement filter cartridge PFM for filter with filtration capacity up to 0,1 um and working pressure 16 bar. Operating temperature up to 150°C. Made of borosilicate microfibers.
Replacement filter cartridge PFN5 for filter with filtration capacity up to 5 um and working pressure 16 bar. Operating temperature up to 150°C. Made of stainless steel strainer.
The SFS filter with DN65 flange connection is designed for highly efficient filtration of compressed air, process air and industrial gases. Filtration capacity less than 0.01 um...
PFM microfilter with G2 1/2" connection thread for use in areas with high corrosive environments. Filtration capacity up to 0.1 um. Maximum working pressure is 16 bar, maximum...
PFS microfilter with G2 1/2" connection thread for use in areas with high corrosive environments. Filtration capacity up to 0.01 um. Maximum working pressure is 16 bar, maximum...
The SPFM microfilter with G2 1/2" connection thread is designed for highly efficient filtration of compressed air, process air and industrial gases. Filtration capacity up to...
WFITM microfilter with flange connection DN65 for use in areas with high corrosive environments. Filtration capacity up to 0.01 um. Maximum working pressure up to 16 bar,...
WFITM microfilter with G2 1/2" connection thread for use in areas with high corrosive environments. Filtration capacity up to 0.01 um. Maximum working pressure up to 16 bar,...
Prefilter WFITI1 with flange connection DN65 for use in areas with high corrosive environments. Filtration capacity up to 1 um. Maximum working pressure up to 16 bar, maximum...
Pre-filter WFITN25 with flange connection DN65 for use in areas with high corrosive environments. Filtration capacity up to 25 um. Maximum working pressure up to 16 bar,...
Pre-filter WFITN5 with flange connection DN65 for use in areas with high corrosive environments. Filtration capacity up to 5 um. Maximum working pressure up to 16 bar, maximum...
PFI pre-filter with G2 1/2" connection thread for use in areas with high corrosive environments. Filtration capacity up to 1 um. Maximum working pressure is 16 bar, maximum flow...
Welded PFW pre-filter with G2 1/2" connection thread for use in areas with high corrosive environments. Filtration capacity up to 1 um. Maximum working pressure is 16 bar,...
The SPFN25 pre-filter with G2 1/2" connection thread is designed for highly efficient filtration of compressed air, process air and industrial gases. Filtration capacity up to...