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
Filter cartridge for HFM filter to remove mechanical impurities and oil from compressed air. Borosilicate microfibre insert with a filtration capacity of up to 0.1 μm. Working...
The HFS filter insert removes mechanical impurities and oil from the compressed air. Borosilicate microfibre insert with a filtration capacity of up to 0.01 μm. Working pressure...
Removes mechanical dirt up to 0.01 um and oil according to ISO 8573-1 class 1. Connection by internal pipe threads 1/2". The design allows a flow rate of up to 1187 l/min....
Filter cartridge for HFR filter to remove mechanical impurities from compressed air. Acrylic fibre and cellulose liner with a filtration capacity of up to 1 μm. Working pressure...
The HFS filter insert removes mechanical impurities and oil from the compressed air. Borosilicate microfibre insert with a filtration capacity of up to 0.01 μm. Working pressure...
Filter cartridge for HFR filter to remove mechanical impurities from compressed air. Acrylic fibre and cellulose liner with a filtration capacity of up to 1 μm. Working pressure...
Removes mechanical dirt up to 0.1 um and oil according to ISO 8573-1 class 2. Connection by internal pipe threads 1/2". The design allows a flow rate of up to 1187 l/min....
Removes mechanical contaminants up to 1 um in size according to ISO 8573-1 class 3. Connection by internal pipe threads 1/2". The design allows a flow rate of up to 1187 l/min....
Removes mechanical dirt up to 0.01 um and oil according to ISO 8573-1 class 1. Connection with 3/4" internal pipe threads. The design allows a flow rate of up to 1867 l/min....
Electronic timed condensate drain for compressed air systems up to 50 bar, operating on a time switching valve. External mounting on the filter body with 1/2" thread. Simple...
Electronic stainless steel timed condensate drain from compressed air system up to 16 bar, working on time switching valve. External mounting on the filter body with 1/2"...
Cyclone separator HFC-007 with 1/2" threaded connection. It enables inexpensive and effective removal of water and impurities from compressed air. Working pressure 50 bar,...
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....
Removes the coarsest mechanical dirt up to 15 um in size according to ISO 8573-1 class 7. Connection by internal pipe threads 1/2". Designed to allow flow rates up to 1187...
HFC-150 cyclone separator with 2" threaded connection. It enables inexpensive and effective removal of water and impurities from compressed air. Working pressure 50 bar, working...
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...
Removes mechanical dirt up to 0.01 um and oil according to ISO 8573-1 class 1. Connection by internal pipe threads 1/2". The design allows a flow rate of up to 1187 l/min....
Removes mechanical dirt up to 0.01 um and oil according to ISO 8573-1 class 1. Connection with 2" internal pipe threads. The design allows a flow rate of up to 13,317 l/min....
Removes mechanical dirt up to 0.01 um and oil according to ISO 8573-1 class 1. Connection with 2" internal pipe threads. The design allows a flow rate of up to 8233 l/min....
Removes mechanical dirt up to 0.01 um and oil according to ISO 8573-1 class 1. Connection with 3/4" internal pipe threads. The design allows a flow rate of up to 1867 l/min....
HFPA activated carbon filter with G1 1/2" connection thread for use in areas with high corrosive environments. Filtration capacity up to 0.01 um. Maximum working pressure up to...
HFPA activated carbon filter with G1 1/4" connection thread for use in high corrosive environments. Filtration capacity up to 0.01 um. Maximum working pressure up to 50 bar,...
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...
HFPA activated carbon filter with G1/2" connection thread for use in areas with high corrosive environments. Filtration capacity up to 0.01 um. Maximum working pressure up to...
HFPA activated carbon filter with G2" connection thread for use in areas with high corrosive environments. Filtration capacity up to 0.01 um. Maximum working pressure up to 50...
HFPA activated carbon filter with G2" connection thread for use in areas with high corrosive environments. Filtration capacity up to 0.01 um. Maximum working pressure up to 50...
HFPA activated carbon filter with G3" connection thread for use in areas with high corrosive environments. Filtration capacity up to 0.01 um. Maximum working pressure up to 50...
HFPA activated carbon filter with G3/4" connection thread for use in high corrosive environments. Filtration capacity up to 0.01 um. Maximum working pressure up to 50 bar,...
Removes mechanical contaminants up to 3 um in size according to ISO 8573-1 class 6. Connection with internal pipe threads 1 1/2". Designed to allow flow rates up to 6667 l/min....
Removes mechanical contaminants up to 3 um in size according to ISO 8573-1 class 6. Connection with internal pipe threads 1 1/2". The design allows flow rates up to 4700 l/min....
Removes mechanical contaminants up to 3 um in size according to ISO 8573-1 class 6. Connection by internal pipe threads 1". The design allows flow rates up to 3400 l/min....
Removes mechanical contaminants up to 3 um in size according to ISO 8573-1 class 6. Connection by internal pipe threads 1/2". Designed to allow flow rates up to 1187 l/min....
Removes mechanical contaminants up to 3 um in size according to ISO 8573-1 class 6. Connection with 2" internal pipe threads. Designed to allow flow rates up to 13,317 l/min....
Removes mechanical contaminants up to 3 um in size according to ISO 8573-1 class 6. Connection with 2" internal pipe threads. Designed for flow rates up to 8233 l/min. Special...
Removes mechanical contaminants up to 3 um in size according to ISO 8573-1 class 6. Connection with 3/4" internal pipe threads. Designed to allow flow rates up to 1867 l/min....
Removes the coarsest mechanical dirt up to 15 um in size according to ISO 8573-1 class 7. Connection with internal pipe threads 1 1/2". Designed to allow flow rates up to 6667...
Removes the coarsest mechanical dirt up to 15 um in size according to ISO 8573-1 class 7. Connection with internal pipe threads 1 1/2". The design allows flow rates up to 4700...
Removes the coarsest mechanical dirt up to 15 um in size according to ISO 8573-1 class 7. Connection with 2" internal pipe threads. Designed to allow flow rates up to 13,317...
Removes the coarsest mechanical dirt up to 15 um in size according to ISO 8573-1 class 7. Connection with 2" internal pipe threads. Designed for flow rates up to 8233 l/min....
Removes the coarsest mechanical dirt up to 15 um in size according to ISO 8573-1 class 7. Connection with 3/4" internal pipe threads. Designed to allow flow rates up to 1867...