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:
Product sorting
List of products
Accessories and spare parts for METAL WORK air treatment units. Replacement filter insert 20 um for filter size 1/4" as replacement insert for FDM and FWA air filters.
Mounting angle for mounting miniature compressed air treatment units P2 and B2 in 1/4" size. INmade of black painted steel.
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"...
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...
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 1/4" design with 55 l/min air flow. Included in the delivery is a pressure gauge and...
Accessories and spare parts for METAL WORK air treatment units. Replacement filter insert 5 um for filter size 1/4" as replacement insert for FDM and FWA air filters.
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...
Air treatment units A1. Air lubrication for pneumatic tools and automation technology. Oil in the air extends the life of pneumatic components. 3/8" lubricator design with air...
Replacement container for filter unit A2 - A2NF-12. Simple container change with lock on the following units: A2F-12, A2S-12, A2U-12.
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 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...
Accessories and spare parts for METAL WORK air treatment units. Mounting angle for mounting units in sizes 3/8"-1/2".
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...
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 1/2" thread. Regulation range 0...
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 650 l/min in 1/4" size. Application mainly in industry, laboratory,...
The filter cartridge with filtering capability is suitable for the exchange of A1 air treatment units. The 5 um - 1/2" version can filter 4,000 l/min of air compressed to a...
Replacement cartridge WOS-8A for water-oil separators. Active carbon filtration. Residual oil less than 10 ppm. The maximum flow rate is 8000 l/min.
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...
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...
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 thread 3/8". Regulation range 0 - 12 bar. Application...
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 pressure regulator with metal filter 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. Filtration...
Fixing angle for air treatment units A2R-14, A2S-14. Attachment by means of a lock nut on the pressure regulator.
Metal filter up to 18 bar with 20 µm cartridge for a flow rate of 4 300 l/min in size 2 with 1/2" thread. Application mainly in industry, laboratory, measuring and control...
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...
Compressed air treatment units in metal design up to 18 bar. Comprehensive treatment in one 1/4" device with flow rates up to 800 l/min. All the benefits of separate parts....
Air treatment units A1. Simple compressed air control with 1/2" AR pressure regulators with 6,000 l/min air flow. Included in the delivery is a pressure gauge and fixing angle.
Mounting angle for mounting 1/4" size units. Accessories and spare parts for METAL WORK air treatment units.
Air treatment units A1. Simple compressed air control with AFR air filtration pressure regulators in 3/8" design with 2000 l/min air flow. Included in the delivery is a pressure...
Float valve for condensate discharge from compressed air system working on float principle. Version AOK16B for internal mounting of filter vessels using 1/2" thread.
The filter cartridge with filtering capability is suitable for the exchange of A1 air treatment units. The 5 um - 3/8" version can filter 1,500 l/min of air compressed to a...
Accessories and spare parts for METAL WORK air treatment units. Mounting angle for mounting 1/4" size units.
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...
Replacement oil seal for METAL WORK compact filters size 1/8" - 1/4".
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.
Wall mounting kit. The set consists of angles that are attached to the edges of the filter and allow subsequent mounting on the wall. Fast and elegant installation that everyone...
Replacement container for filter unit A2 - A2NF-14. Simple container change with lock on the following units: A2F-14, A2S-14, A2U-14.
