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
Bypass piping for MDX400 to 1800 condensation dryers for easy replacement of filter cartridges without the need for shutdown.Simple assembly during dryer installation. The...
Air treatment units A1. Simple compressed air control with pressure regulators with AFR air filtration in 1/2" design with 4000 l/min air flow. Included in the delivery is a...
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...
Miniature compressed air regulator with 20 um filter in plastic design up to 12 bar. Compressed air regulation from 0 to 10 atmospheres with a maximum flow rate of 600 l/min....
Miniature compressed air regulator in plastic design up to 12 bar. Compressed air regulation from 0 to 10 atmospheres with a maximum flow rate of 600 l/min. Connection via 1/4"...
Electronic IEDs are primarily designed to drain condensed water from filter vessels. Equipped with LED indicator and test button. Operating temperature +1,5 °C to +65 °C,...
Air pressure regulator in metal design up to 18 bar. Compressed air regulator with a flow rate of 2,600 l/min in size 2 1/2" thread. Regulation range 0 - 12 bar. Application...
Compressed air treatment unit in metal design up to 18 bar. Comprehensive treatment in one 1/2" unit with flow rates up to 2,500 l/min. All the benefits of separate parts....
Replacement cartridge WOSM-2AP for water-oil separators. Combined filtration with activated carbon and PP cartridge. Residual oil less than 20 ppm. The maximum flow rate is 2000...
Compressed air treatment units in metal design up to 18 bar. Compressed air control with a flow rate of 2,500 l/min in 3/8" size. Application mainly in industry, laboratory,...
Air treatment units A1. Simple compressed air control with AFR pressure regulators with 1/4" air filtration and 750 l/min air flow. Included in the delivery is a pressure gauge...
Air treatment units A1. Simple air filtration at 5 um. Filter design 1/2" with air flow of 5,000 l/min. Semi-automatic condensate discharge in the flask.
Compressed air treatment units in metal design up to 18 bar. Compressed air control with a flow rate of 3100 l/min in 1/2" size. Application mainly in industry, laboratory,...
Condensing compressed air dryer for dew point +5°C. Maximum inlet pressure is 13 bar with a flow rate of up to 35 m³/hr (583 l/min) and connection via external thread G 1/2"....
Standard connection set for FUTURA size 1 air handling units without wall bracket. The kit can be used to connect any 2 modules of a given size together without the need for...
Complete unit in metal design up to 18 bar. Regulation, filtration, lubrication of compressed air with a flow rate of 4,600 l/min in size 3 with 3/4" thread. Regulation range 0...
Condensation dryer for compressed air to +3°C dew point. The maximum input pressure is 14 bar with a flow rate of up to 50 m³/h (833 l/min) and a G1" external thread connection....
Condensation dryer for compressed air to +3°C dew point. Maximum inlet pressure is 14 bar with a flow rate of up to 35 m³/hr (583 l/min) and connection via external G3/4"...
Lubricator in metal design up to 18 bar with a flow rate of 4,500 l/min in size 2 with 3/8" thread for efficient oil mist doses for lubricating pneumatic tools or drives on...
Pressure regulator with 5 um air filtration for compressed air with or without oil and for neutral gases up to 16 bar. Design according to ATEX II 2G2D. The adjusting pin can be...
Hub module size 3 air handling units - B2 allow air sampling with certain parameters within the modular series. Tapping outlet via 4 x 1/2" thread. Mthe possibility of taking...
Complete unit in metal design up to 18 bar. Regulation, filtration, lubrication of compressed air with a flow rate of 4,600 l/min in size 3 with 1" thread. Regulation range 0 -...
Condensation dryer of compressed air to a dew point of +3°C. Maximum input pressure is 14 bar with a flow rate of up to 20 m³/hr (333 l/min) and connection via external thread...
Lubricator in metal design up to 18 bar with a flow rate of 16,000 l/min in size 3 with 3/4" thread designed for efficient oil mist doses for lubricating pneumatic tools or...
Air pressure regulator in metal design up to 18 bar. Compressed air control with a flow rate of 4,600 l/min in size 3 3/4" thread. Regulation range 0 - 12 bar. Application...
Mounting angle for mounting miniature compressed air treatment units P2 and B2 in 1/4" size. INmade of black painted steel.
Regulator for pressure reduction of compressed air and other non-volatile and non-toxic gases with inlet G 1 1/2" and outlet pressure regulation 0,5 - 10 Bar. Maximum inlet...
Regulators for pressure reduction of compressed air and other non-volatile and non-toxic gases. Maximum inlet pressure 40 bar, various outlet pressures, operating temperature...
Complete air treatment units are used wherever compressed air needs to be regulated, filtered and lubricated. With the complete units, we can obtain compressed air treated to 5...
Accessories and spare parts for METAL WORK air treatment units. Mounting angle for mounting 1/4" size units.
Compressed air treatment units in metal design up to 18 bar. Compressed air control with a flow rate of 2,500 l/min with the possibility of changing the filter cartridge up to 5...
Compressed air treatment units in plastic design up to 13 bar. Compressed air regulation from 0 to 8 atmospheres with a maximum flow rate of 600 l/min. Connection via 1/8" pipe...
Compressed air treatment units in metal design up to 18 bar. Compressed air control with a flow rate of 2,500 l/min in 3/8" size. Application mainly in industry, laboratory,...
Air pressure regulator with metal filter up to 18 bar. Compressed air regulator with a flow rate of 2,600 l/min in size 2 1/2" thread. Regulation range 0 - 12 bar. Filtration...
Microfilter in metal design up to 18 bar with 0.01 µm liner, flow rate 4 300 l/min in size 2 with 3/8" thread atdesigned for very gentle removal of solid dirt, water and oil...
Futura Treatment Units - Compressed Air Pressure Regulators, Designed for compressed air with or without oil and for neutral gases, Designed according to ATEX II 2G2D, Maximum...
Air treatment units A1. Simple compressed air regulation with AR pressure regulators in 1/4" design with 55 l/min air flow. Included in the delivery is a pressure gauge and...
Complete unit in metal design up to 18 bar. Regulation, filtration, lubrication of compressed air with a flow rate of 2,500 l/min in size 2 with 3/8" thread. Regulation range 0...
Metal filter for filtration of compressed air from a compressor at 20 um to 18 bar with a maximum flow of 3,100 l/min. Connection 3/8" pipe thread. Possibility to change the...
Air pressure regulator with metal filter up to 18 bar. Compressed air regulator with a flow rate of 2,600 l/min in size 2 thread 3/8". Regulation range 0 - 12 bar. Filtration...