larryq said:
I see those distinctions when looking at air line filters and am not sure what the difference is?
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A compressed air water/oil seperator removes the water/oil form the air stream. A coalescing filter is a seperator.
A coalescing filters main function is to remove water and oil aerosols by coalescing the aerosols into droplets. This happens partially because of torturous path and pressure drop. Coalescers remove both water and oil aerosols from the air stream. It is important to realize that a coalescer is excellent at removing aerosols and liquids but not vapors.
To remove vapors, you either have to filter them out with an absorbent filter or condesnse them out of the air stream(from a gas to a solid) so that a coalescing filter can remove them.
Basically, any filter that removes oil / water from the compressed air is a seperator, coalescing just tells you how it is removing it.
Coalescing filter - removes aerosols of water and oil.
Absorbent filter - removes water and oil vapor
Particulate filter - removes particulates such as dirt, dust, metal flakes and other solid matter.
A compressed air water/oil seperator removes the water/oil form the air stream. A coalescing filter is a seperator.A coalescing filters main function is to remove water and oil aerosols by coalescing the aerosols into droplets. This happens partially because of torturous path and pressure drop. Coalescers remove both water and oil aerosols from the air stream. It is important to realize that a coalescer is excellent at removing aerosols and liquids but not vapors.To remove vapors, you either have to filter them out with an absorbent filter or condesnse them out of the air stream(from a gas to a solid) so that a coalescing filter can remove them.Basically, any filter that removes oil / water from the compressed air is a seperator, coalescing just tells you how it is removing it.- removes aerosols of water and oil.- removes water and oil vapor- removes particulates such as dirt, dust, metal flakes and other solid matter.
For more information, please visit coalescer cartridge.