Filtration, regulation and treatment of compressed air
Compressed air treatment is an indispensable part of the compressor system. You need to treat compressed air because it naturally has dust particles, oil and, last but not least, condensate. This combination is very damaging to any device you connect to the compressor. Corrosion, clogging and sticking of moving parts shorten the life of valves, pneumatic tools and automated line components. That's why we bring you a comprehensive air treatment program that includes air dryers, filters, pressure regulators, separators and cyclone separators. With our air treatment program , you can extend the life of your entire compressor system many times over and avoid expensive service or line downtime. More on how to filter and condition air in the sequel.
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Basic principles of air treatment:
- drying - air dryers(condensation dryers, adsorption dryers, membrane dryers)
- filtration - air filters according to ISO 8573(air filtration, high pressure filters, process filters, vacuum filters)
- regulation - air pressure regulators on the distribution lines before the application itself
- getting rid of condensate and oil(cyclone separators, water-oil separation)
What to follow - Compressed air quality classes according to ISO 8573-1
How do you know what quality of compressed air to have for your application? The ISO 8573-1 standard is the guideline. The quality of the produced air is described in the standard by seven classes, from 0 to 6. Each class has a prescribed maximum content of solids, water and oil. Different purity classes are therefore required for different applications and flow rates. For example, for workshop air, the standard prescribes a quality of 4-4-5. The three numbers indicate the three prescribed quality classes in the order - solids quality class, water quality class, oil quality class. The highest demands are of course in the pharmaceutical, chemical and food industries.
We talk in detail about the quality classes in our article from the advisory board: How to filter compressed air
Step-by-step air treatment
It is best to use an air dryerbehind the compressor to ensure that the condensate is removed. It is recommended to use a pre-filter between the air dryer and the compressor. There are different requirements for artisans and different requirements in a medical environment. Therefore, the purity of the air in microns needs to be determined. This filtration is then placed behind the dryer. Finally, we can regulate the compressed air to the desired pressure (atmospheres). All the accessories that we use to treat the air will wear out over time and the filter cartridges or granulate will need to be replaced. We use clogging indicators or differential pressure gauges to measure filter wear. This accessory can only be found on better filters for compressed air treatment.
More articles about air conditioning from our advice section:
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Treatment units; basic units for air
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Industrial filtration; ISO 8573 - ISO 12500
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Air dryers; air moisture removal
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Pressure regulators; precision robust design
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Cyclone separators; cyclone filtration principle
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Water-oil separators; separates water from oil
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Bestsellers
List of products
Float-operated condensate drain valve for compressed air systems up to 13 bar. Version AOK13PA for external mounting on the filter body with 1/2" thread.
AAFC cyclone separator in 1/2" design with a flow rate of 1,300 l/min for partial removal of condensate from compressed air. Here the flow changes to rotational and due to the...
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,...
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.
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"....
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....
Adsorption filter with activated carbon AAFA2 in 1/2" version for absorption of residual oil, oil vapours and aerosols with < 0,005 mg/m3 from compressed air according to ISO...
AAFA activated carbon filter in 1/2" version for absorption of residual oil, oil vapours and aerosols with < 0,005 mg/m3 from compressed air according to ISO 8573-1 class 1....
AAFS 1/2" microfilter to remove micro impurities up to 0.01 um from compressed air according to ISO 8573-1 class 1. Body with easily removable container and designed for a flow...
Hankison 's NGF series SF type basic ISO filter for compressed air. Filter size F04 with 1/2" female thread connection. The filter is equipped with a clogging indicator and an...
AAFM 1/2" pre-filter for removing fine impurities up to 0.1 um from compressed air according to ISO 8573-1 class 2. Body with easily removable container and designed for a flow...
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....
Prefilter for compressed air from Hankison NGF series of HF type according to ISO. Filter size F04 with 1/2" female thread connection. The filter is equipped with a clogging...
AAFP basic filter in 1/2" design for removal of basic mechanical impurities up to 3 um from compressed air according to ISO 8573-1 class 6. Body with easily removable container...
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....
The WDF-70 condensing air dryer provides efficient moisture removal from compressed air with a flow rate of 70 m³/h (1,166 l/min) and a pressure dew point of +3 °C. Thanks to...
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,...
Dust filter AAFR in 1/2" design to remove dust impurities up to 1 um from compressed air according to ISO 8573-1 class 3. Body with easily removable container and designed for a...
Hankison 's NGF series NGF type PF basic ISO compressed air filtration. Filter size F04 with 1/2" female thread connection. The filter is equipped with a clogging indicator and...
The simplest way to drain condensate from pressure vessels and filter vessels. Connection by thread, control of the firing by a rotary pin.
Electronic condensate drain from a compressed air system up to 16 bar, operating on a timed valve switching. External mounting on the filter body using a 1/2" thread. Simple...
Float-operated condensate drain valve for compressed air systems up to 20 bar. Version AOK20B for external mounting on the filter body with 1/2" thread.
PFS microfilter with G1/2" connection thread for use in areas with high corrosive environments. Filtration capacity up to 0.01 um. Maximum working pressure is 16 bar, maximum...
Stainless steel cyclone separator IHP4 with threaded connection 1/2". It enables inexpensive and efficient removal of water and impurities from compressed air. Working pressure...
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...
Stainless steel cyclone separator IHP2 with threaded connection 1/2". It enables inexpensive and efficient removal of water and impurities from compressed air. Working pressure...
Cyclone separator CHP1 with threaded connection 1/2". It enables inexpensive and efficient removal of water and impurities from compressed air. Working pressure 100 bar, working...
Replacement cyclone separator body HFC-007 with threaded connection G1/2". It enables inexpensive and effective removal of water and impurities from compressed air. Working...
Electronic timed condensate drain for compressed air systems up to 150 bar, operating on a time switching valve. External mounting on the filter body with 1/2" thread. Simple...
Stainless steel cyclone separator IHP1 with threaded connection 1/2". It enables inexpensive and efficient removal of water and impurities from compressed air. Working pressure...
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"...
Replacement filter element CHPC-007V for cyclone separator CHP. It enables inexpensive and efficient removal of water and impurities from compressed air. Working pressure up to...
Catalytic filters (hopcalite) AAFH2 in 1/2" design for removal of CO andCO2 to breathable air level according to ISO 8573-1 class 1. Body with easily removable container and...
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....
CHP1A activated carbon filter with G1/2" connection thread designed to effectively remove solid impurities, oil, water and other impurities from compressed air up to 0.005 um....
CHP2A activated carbon filter with G1/2" connection thread designed for effective removal of solid impurities, oil, water and other impurities from compressed air up to 0.005...
CHP4A activated carbon filter with G1/2" connection thread designed to effectively remove solid impurities, oil, water and other impurities from compressed air up to 0.005 um....
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...
Adsorption filter with activated carbon for compressed air from Hankison NGF series type CF according to ISO. Filter size F04 with 1/2" female thread connection. The filter is...
Working pressure up to 16 bar, maximum flow rate 1300 l/min. Purity class according to ISO 8573.1 : Solid impurities -1, Oil - 1. Residual oil