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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List of products
Proportional pressure regulator with flow rate 530 l/min, 0 - 4 bar control, controlled by 4-20 mA electrical signal. Integrated transducer to convert the electrical quantity to...
Proportional pressure regulator with a flow rate of 530 l/min, 0 - 4 bar control, controlled by 0-10 V electrical signal. Integrated transducer to convert the electrical...
Proportional pressure regulator with a flow rate of 530 l/min, 0 - 6 bar control, controlled by 0-10 V electrical signal. Integrated transducer to convert the electrical...
Proportional pressure regulator with a flow rate of 530 l/min, 0 - 6 bar control, controlled by a 4-20 mA electrical signal. Integrated transducer to convert the electrical...
Hankison adsorption filter cartridge for CF series air microfilter type F13. The filter insert is suitable for easy replacement by means of a thread in the filter. The maximum...
Hankison adsorption filter cartridge for CF series air microfilter type F14. The filter insert is suitable for easy replacement by means of a thread in the filter. The maximum...
Hankison adsorption filter cartridge for CF series air microfilter type F15. The filter insert is suitable for easy replacement by means of a thread in the filter. The maximum...
Hankison adsorption filter cartridge for CF series air microfilter type F16. The filter insert is suitable for easy replacement by means of a thread in the filter. The maximum...
Hankison adsorption filter cartridge for CF series air microfilter type F17. The filter insert is suitable for easy replacement by means of a thread in the filter. The maximum...
Hankison filter cartridge for HF series air filter type F14. The filter insert is suitable for easy replacement by means of a thread in the filter. The maximum pressure of the...
Hankison filter cartridge for HF series air filter type F15. The filter insert is suitable for easy replacement by means of a thread in the filter. The maximum pressure of the...
Hankison filter cartridge for HF series air filter type F16. The filter insert is suitable for easy replacement by means of a thread in the filter. The maximum pressure of the...
Hankison filter cartridge for HF series air filter type F17. The filter insert is suitable for easy replacement by means of a thread in the filter. The maximum pressure of the...
Prefilter for compressed air from Hankison NGF series of HF type according to ISO. Filter size F15 with 2 1/2" female threads. The filter is equipped with a clogging indicator...
Prefilter for compressed air from Hankison NGF series of HF type according to ISO. Filter size F14 with 2 1/2" female threads. The filter is equipped with a clogging indicator...
Hankison filter cartridge for HF series air filter type F13. The filter insert is suitable for easy replacement by means of a thread in the filter. The maximum pressure of the...
Prefilter for compressed air from Hankison NGF series of HF type according to ISO. Filter size F16 with 3" internal thread connection. The filter is equipped with a clogging...
Prefilter for compressed air from Hankison NGF series of HF type according to ISO. Filter size F13 with 2 1/2" female threads. The filter is equipped with a clogging indicator...
Adsorption filter with activated carbon for compressed air from Hankison NGF series type CF according to ISO. Filter size F13 with 2 1/2" female threads. The filter is not...
Prefilter for compressed air from Hankison NGF series of HF type according to ISO. Filter size F17 with 3" female thread connection. The filter is equipped with a clogging...
Hankison filter cartridge for UF series air microfilter type F13. The filter insert is suitable for easy replacement by means of a thread in the filter. The maximum pressure of...
Hankison filter cartridge for UF series air microfilter type F14. The filter insert is suitable for easy replacement by means of a thread in the filter. The maximum pressure of...
Hankison filter cartridge for UF series air microfilter type F15. The filter insert is suitable for easy replacement by means of a thread in the filter. The maximum pressure of...
Hankison filter cartridge for UF series air microfilter type F16. The filter insert is suitable for easy replacement by means of a thread in the filter. The maximum pressure of...
Hankison filter cartridge for UF series air microfilter type F17. The filter insert is suitable for easy replacement by means of a thread in the filter. The maximum pressure of...
Adsorption filter with activated carbon for compressed air from Hankison NGF series type CF according to ISO. Filter size F15 with 2 1/2" female threads. The filter is not...
Adsorption filter with activated carbon for compressed air from Hankison NGF series type CF according to ISO. Filter size F14 with 2 1/2" female threads. The filter is not...
Adsorption filter with activated carbon for compressed air from Hankison NGF series type CF according to ISO. Filter size F16 with 3" internal thread connection. The filter is...
Adsorption filter with activated carbon for compressed air from Hankison NGF series type CF according to ISO. Filter size F17 with 3" female thread connection. The filter is not...
Hankison 's NGF series SF type basic ISO filter for compressed air. Filter size F17 with 3" female thread connection. The filter is equipped with a clogging indicator and an...
Hankison 's NGF series SF type basic ISO filter for compressed air. Filter size F16 with 3" internal thread connection. The filter is equipped with a clogging indicator and an...
Hankison 's NGF series SF type basic ISO filter for compressed air. Filter size F15 with 2 1/2" female threads. The filter is equipped with a clogging indicator and an automatic...
Hankison 's NGF series SF type basic ISO filter for compressed air. Filter size F14 with 2 1/2" female threads. The filter is equipped with a clogging indicator and an automatic...
Hankison 's NGF series SF type basic ISO filter for compressed air. Filter size F13 with 2 1/2" female threads. The filter is equipped with a clogging indicator and an automatic...
Hankison 's NGF series NGF type PF basic ISO compressed air filtration. Filter size F15 with 2 1/2" female threads. The filter is equipped with a clogging indicator and an...
Hankison 's NGF series NGF type PF basic ISO compressed air filtration. Filter size F14 with 2 1/2" female threads. The filter is equipped with a clogging indicator and an...
Hankison 's NGF series NGF type PF basic ISO compressed air filtration. Filter size F13 with 2 1/2" female threads. The filter is equipped with a clogging indicator and an...
Hankison 's NGF series NGF type PF basic ISO compressed air filtration. Filter size F17 with 3" female thread connection. The filter is equipped with a clogging indicator and an...
Hankison 's NGF series NGF type PF basic ISO compressed air filtration. Filter size F16 with 3" internal thread connection. The filter is equipped with a clogging indicator and...
Hankison filter cartridge for the PF series air filter type F13. The filter insert is suitable for easy replacement by means of a thread in the filter. The maximum pressure of...