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
AAFC cyclone separator in 1" design with a flow rate of 3,300 l/min for partial removal of condensate from compressed air. Here the flow changes to rotational and due to the...
The ADRY-150 Series Adsorption Dryer was designed for continuous separation of water vapor from compressed air at flow rates up to 2,500 l/min. Reduces the pressure dew point...
AAFP 1" basic filter 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 and designed...
AAFP 1" basic filter 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 and designed...
AFM filters are used to remove the largest mechanical impurities from compressed air up to 0.1 um according to ISO 8573-1 class 2. Body with easily removable container and...
The filters are used to remove the largest mechanical impurities from compressed air up to 1 um according to ISO 8573-1 class 3. Body with easily removable container and...
AAFM 1" pre-filter for the 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 for a...
Adsorption filter with activated carbon AAFA2 in 1" version for absorption of residual oil, oil vapours and aerosols with < 0,005 mg/m3 from compressed air according to ISO...
AAFB 1" coarse filter for removal of the largest mechanical impurities up to 15 um from compressed air according to ISO 8573-1 class 7. Body with easily removable container and...
AAFA 1" activated carbon filter for absorption of residual oil, oil vapours and aerosols with < 0,005 mg/m3 from compressed air according to ISO 8573-1 class 1. Body with easily...
Hankison 's NGF series SF type basic ISO filter for compressed air. Filter size F08 with 1" female thread connection. The filter is equipped with a clogging indicator and an...
AAFS 1" microfilter to remove 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 flow...
AAFR dust filter in 1" 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...
AAFS 1" microfilter to remove 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 flow...
AAFM 1" pre-filter for the 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 for a...
AAFR dust filter in 1" 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...
AAFA 1" activated carbon filter for absorption of residual oil, oil vapours and aerosols with < 0,005 mg/m3 from compressed air according to ISO 8573-1 class 1. Body with easily...
Basic AFP filters according to ISO 8573.1 with a filtration capacity of 3 um and an efficiency of 99.9%. FPRO filters are used to remove the largest mechanical impurities from...
Bypass or bypass piping for Omega Air compressed air dryers RDP-140/RDT-140 to RDP-235/RDT-235 for easy maintenance and servicing of the machine.
Prefilter for compressed air from Hankison NGF series of HF type according to ISO. Filter size F08 with 1" female thread connection. The filter is equipped with a clogging...
Adsorption dryer BDRY-150 designed for permanent separation of water vapour from compressed air with a flow rate of up to 1 958 l/min at a maximum pressure of 16 bar and...
The BDRY-200 adsorption dryer is designed for continuous separation of water vapour from compressed air with a flow rate of up to 2,617 l/min at a maximum pressure of 16 bar and...
The BDRY-250 Adsorption Dryer is designed for continuous separation of water vapour from compressed air with a flow rate of up to 3,400 l/min at a maximum pressure of 16 bar and...
Adsorption dryer BDRY-110 designed for permanent separation of water vapour from compressed air with a flow rate of up to 1 433 l/min at a maximum pressure of 16 bar and...
Removes the coarsest mechanical dirt up to 15 um in size according to ISO 8573-1 class 7. Connection by internal pipe threads 1". The design allows flow rates up to 3400 l/min....
Replacement filter element CHPC-018V for cyclone separator CHP. It enables inexpensive and efficient removal of water and impurities from compressed air. Working pressure up to...
Refrigeration dryer for compressed air down to a dew point of +3°C. Maximum inlet pressure is 14 bar, with a flow rate of up to 100 m³/h (1 666 l/min) and connection via a G1"...
Filter insert for PVACM vacuum microfilter designed to protect vacuum pumps and vacuum pumps from solid impurities. Filtration capacity up to 0.01 um. Working pressure 20 to...
The extremely quiet and dust-free operation of the compressed air condensation dryer up to a flow rate of 260 m³/hr from the compressor at a 3°C dew point enables use in...
Filter insert for PVACM vacuum microfilter designed to protect vacuum pumps and vacuum pumps from solid impurities. Filtration capacity up to 0.01 um. Working pressure 20 to...
Condensation dryer for compressed air to +3°C dew point. Maximum input pressure is 14 bar with a flow rate of up to 75 m³/hr (1,250 l/min) and connection via external thread...
Cyclone separator CHP2 with 1" threaded connection. It enables inexpensive and efficient removal of water and impurities from compressed air. Working pressure 250 bar, working...
Condensation dryer for compressed air to +3°C dew point. Maximum inlet pressure is 14 bar with a flow rate of up to 144 m³/hour (2,333 l/min) and connection via external thread...
Condensing compressed air dryer for dew point +5°C. The maximum inlet pressure is 13 bar with a flow rate of up to 180 m³/hr (3,000 l/min) and connection via a G 1" male thread....
Removes mechanical dirt up to 0.01 um and oil according to ISO 8573-1 class 1. Connection by internal pipe threads 1". The design allows a flow rate of up to 3400 l/min. Special...
CHP1A activated carbon filter with G1" connection thread designed for effective removal of solid impurities, oil, water and other impurities from compressed air up to 0.005 um....
CHP2A activated carbon filter with G1" connection thread designed for effective removal of solid impurities, oil, water and other impurities from compressed air up to 0.005 um....
CHP4A activated carbon filter with G1" connection thread designed to effectively remove solid impurities, oil, water and other impurities from compressed air up to 0.005 um....
HFPA activated carbon filter with G1" connection thread for use in areas with high corrosive environments. Filtration capacity up to 0.01 um. Maximum working pressure up to 50...
Adsorption filter with activated carbon for compressed air from Hankison NGF series type CF according to ISO. Filter size F08 with 1" female thread connection. The filter is not...