Airfilter Engineering (AFE) has developed a comprehensive range of filter grades to cater to the requirements of different applications.
All our filter media are of pleated design to ensure higher filtration area. Filters and elements can also be custom made to suit your needs.
Air produced by your compressor contains water and other impurities.
AFE's filter is designed to remove these pollutants: the P grade high efficiency pre-filter/ particulate filter, which removes particles down to 3 micron. The particulate filter protects piping and pneumatic equipment from particulate damage by removing rust, pipe scale, metal oxides, and desiccant particles.
The U, H and S grades are high efficiency coalescing filter. The high efficiency coalescing filter removes water aerosols, oil aerosols and solid particles to a specified level which gets rid of particles and oil aerosols down to 0.01 micron and 0.001 mg/m3 respectively.
It is important to realise that a coalescer is excellent at removing aerosols and liquids but not vapours like hydrocarbons and odors. A vapour filter removes vapours with an adsorbent. The C grade, an activated carbon filter, is a vapour filter which removes oil vapor and hydrocarbon odors.
Depending on the air flow and oil content in the compressed air, vapour filter elements need to be replaced every few months because the effectiveness of the activated carbon degrades as it adsorbs the oil.