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
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,...
Accessories and spare parts for METAL WORK air treatment units. Replacement container for METAL WORK filters in 1/4" size.
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"...
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...
Fixing angle for mounting of metal compressed air treatment units B2 in size 2 for threads 3/8" - 1/2". Inmade of black painted steel.
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.
Air treatment units A1. Simple air filtration at 5 um. Filter design 3/8" with air flow 1 700 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 2,500 l/min in 3/8" size. Application mainly in industry, laboratory,...
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 unit in metal design up to 18 bar. Lubricating grease fitting in 1/2" size with a flow rate of up to 4,300 l/min for compressed air lubrication of e.g....
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...
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...
Air treatment units A1. Simple compressed air regulation with AR pressure regulators in 3/8" design with air flow of 2 500Air pressure regulator AR14 l/min. Included in the...
Mounting angle for mounting miniature compressed air treatment units P2 and B2 in 1/4" size. INmade of black painted steel.
Air pressure regulator in metal design up to 18 bar. Compressed air control with 850 l/min flow rate in 1 thread 1/4" size. Regulation range 0 - 12 bar. Application mainly in...
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...
Kit for wall mounting and connecting filters. The set consists of two angles that are attached to the edges of the filter and allow subsequent mounting on the wall. Connecting...
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...
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...
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...
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"...
Miniature complete compressed air treatment unit with 20 um filter, pressure regulator and oiler in plastic design up to 12 bar. Compressed air regulation from 0 to 10...
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...
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....
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...
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....
AAFM pre-filter in 3/4" 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...
Compressed air treatment units in metal design up to 18 bar. Compressed air control with a flow rate of 650 l/min in 1/4" size. Application mainly in industry, laboratory,...
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...
Air pressure regulator with metal filter up to 18 bar. Compressed air control with 850 l/min flow rate in 1 thread 1/4" size. Regulation range 0 - 12 bar. Filtration capacity 20...
Complete unit in metal design up to 18 bar. Regulation, filtration, lubrication of compressed air with a flow rate of 700 l/min in size 1 with 1/4" thread. Regulation range 0 -...
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...
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...
Metal grease nipples up to 18 bar with a flow rate of 16,000 l/min in size 3 with 1" thread for effective oil mist doses for lubricating pneumatic tools or drives on production...
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...
MDM40 - basic version. Magnetic differential pressure gauges for displaying the orientation state of the filter cartridge. Fitted with dial with indicative scale and green/red...
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 -...
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...
Test papers for water-oil separators containing 20 pieces of paper.
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 thread 1". Regulation range 0 - 12 bar. Application mainly...