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 1/4" 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 a...
Dust filter AAFR in 1/4" 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 a...
AAFM pre-filter in 1/4" design for removal of fine impurities up to 0.1 um from compressed air according to ISO 8573-1 class 2. Body with easily removable container and designed...
AAFM pre-filter in 1/4" design for removal of fine impurities up to 0.1 um from compressed air according to ISO 8573-1 class 2. Body with easily removable container and designed...
Dust filter AAFR in 1/4" 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 a...
AAFP basic filter in 1/4" design for removal of basic mechanical impurities up to 3 um from compressed air according to ISO 8573-1 class 6. Body with easily removable container...
AAFP basic filter in 1/4" design for removal of basic mechanical impurities up to 3 um from compressed air according to ISO 8573-1 class 6. Body with easily removable container...
Prefilter for compressed air from Hankison NGF series of HF type according to ISO. Filter size F02 with 1/4" female thread connection. The filter is equipped with a clogging...
Hankison 's NGF series SF type basic ISO filter for compressed air. Filter size F02 with 1/4" female thread connection. The filter is equipped with a clogging indicator and an...
AAFA activated carbon filter in 1/4" 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....
AAFS 1/4" 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 a...
AAFA activated carbon filter in 1/4" 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....
Cyclone separator CHP2 with 1/4" threaded connection. It enables inexpensive and efficient removal of water and impurities from compressed air. Working pressure 250 bar, working...
Cyclone separator CHP1 with 1/4" threaded connection. It enables inexpensive and efficient removal of water and impurities from compressed air. Working pressure 100 bar, working...
Stainless steel cyclone separator IHP1 with 1/4" threaded connection. It enables inexpensive and efficient removal of water and impurities from compressed air. Working pressure...
The IHP2R stainless steel dust filter with G1/4" connection thread is designed to effectively remove dust, oil, water and other impurities from compressed air up to 1 um....
Electronic time release condensate drain with 24V DC voltage from compressed air system up to 420 bar, working on time switching valve. External mounting on the filter body with...
Filter cartridge for medical vacuum filter MVAC-0016. Applications mainly in medical devices. Working pressure 20 to 2000 mbar, maximum flow up to 36 l/min.
CHP1A activated carbon filter with G1/4" connection thread designed to effectively remove solid impurities, oil, water and other impurities from compressed air up to 0.005 um....
CHP2A activated carbon filter with G1/4" connection thread designed to effectively remove solid impurities, oil, water and other impurities from compressed air up to 0.005 um....
CHP4A activated carbon filter with G1/4" connection thread designed to effectively remove solid impurities, oil, water and other impurities from compressed air up to 0.005 um....
Adsorption filter with activated carbon for compressed air from Hankison NGF series type CF according to ISO. Filter size F02 with 1/4" female thread connection. The filter is...
CHP1P basic filter with G1/4" connection thread designed to effectively remove solid impurities, oil, water and other impurities from compressed air up to 3 um. Maximum working...
CHP2P basic filter with G1/4" connection thread designed to effectively remove solid impurities, oil, water and other impurities from compressed air up to 3 um. Maximum working...
CHP4P basic filter with G1/4" connection thread designed to effectively remove solid impurities, oil, water and other impurities from compressed air up to 3 um. Maximum working...
Basic stainless steel filter IHP1N5 with G1/4" connection thread designed to effectively remove solid impurities, oil, water and other impurities from compressed air up to 5 um....
Basic stainless steel filter IHP2N5 with G1/4" connection thread designed to effectively remove solid impurities, oil, water and other impurities from compressed air up to 5 um....
Basic stainless steel filter IHP4N5 with G1/4" connection thread designed to effectively remove solid impurities, oil, water and other impurities from compressed air up to 5 um....
AAFB coarse filter in 1/4" 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...
Cyclone separator CHP4 with 1/4" threaded connection. It enables inexpensive and efficient removal of water and impurities from compressed air. Working pressure 400 bar, working...
Dust filter CHP1R with G1/4" connection thread designed to effectively remove dust, oil, water and other impurities from compressed air up to 1 um. Maximum working pressure up...
Dust filter CHP2R with G1/4" connection thread designed to effectively remove dust, oil, water and other impurities from compressed air up to 1 um. Maximum working pressure up...
Dust filter CHP4R with G1/4" connection thread designed to effectively remove dust, oil, water and other impurities from compressed air up to 1 um. Maximum working pressure up...
Hankison 's NGF series NGF type PF basic ISO compressed air filtration. Filter size F02 with 1/4" female thread connection. The filter is equipped with a clogging indicator and...
Replacement filter cartridge CHPP-003V made of acrylic fibre, cellulose is used for basic filtration to 3 um purity from compressed air. The maximum compressed air flow rate of...
Filter cartridge for medical vacuum filter MVAC-0026. Applications mainly in medical devices. Working pressure 20 to 2000 mbar, maximum flow up to 60 l/min.
Replacement filter element CHPC-003V for cyclone separator CHP. It enables inexpensive and efficient removal of water and impurities from compressed air. Working pressure up to...
Replacement filter cartridge CHPB-003V with sintered bronze is used for coarse filtration to a purity of 15 um from compressed air. The maximum compressed air flow rate of the...
The replacement stainless steel filter cartridge IHPA-003V with activated carbon is used to absorb residual oil vapours and aerosols from compressed air to a level of 0.005...
The replacement filter cartridge CHPA-003V with activated carbon is used to absorb residual oil vapours and aerosols from compressed air to a level of 0.005 mg/m³. The maximum...