Finite coalescing filtration:
coalescing filtration: a steady state process whereby aerosols are caused to agglomerate (come together) into even larger droplets as they pass through the filter element’s fiber matrix, eventually
becoming large enough to be gravitationally drained away.
Why filter compressed air?
Submicronic contaminants in compressed air systems can:
1.plug orifices of sensitive pneumatic instrumentation
2.wear out seals
3.erode system components
4.reduce the absorptive capacity of desiccant air/gas dehydrators
5.foul heat transfer surfaces
6.reduce air tool efficiency
The results include:
1. product rejects
2. lost production time
3. increased maintenance costs
For example, trace amounts of submicronic oil can cause serious fish eye blemishing in automotive finishing operations. Water left in air lines can freeze during exposure to cold, blocking flow or rupturing pipes. Compressor lubricant not captured in a coalescing filter will eventually
collect in pneumatic components, causing premature component repair or replacement. Environmental concerns will be raised if oily, compressed air is continually discharged into the atmosphere through a pneumatic muffler.
International H-Series
Compressed Air & Gas Filters
Finite
Coalescing, Particulate & Hydrocarbon Adsorption
Flows from 10 to 1600 SCFM (17 to 2822 m3/hr)
1/4" to 3" NPT, BSPF & BSPT Ports
compressed air
The contaminants of greatest concern in precision compressed air systems are water, oil and solids. Water vapor is present in all compressed air; it becomes greatly concentrated by the compression process. While air dryer systems can be used effectively to remove water from compressed air, they will not remove the second major liquid contaminant – oil. Most oil comes from compressor lubrication carry-over, but even the air produced by oil-free compressors has hydrocarbon
contamination brought into the system through the intake. The third contaminant found in compressed air is solid matter including dirt, rust and scale. Solid particulates, combined with
aerosols of water and oil, can clog and shorten the life of air system components and can foul processes.
Typical Applications
Coalescing (Oil Removal)
Air dryer prefilter
Paint spray booths
Breathing air
Tool protection
Air valve protection
Air cylinder protection
Compressed air system protection
Adsorber (Vapor Removal)
Odor removal
Breathing air
Food packaging equipment
High purity laboratory gases
Hydrocarbon vapor removal
Interceptor (Particulate Removal) Desiccant dryer after filter Step3
Prefilter for coalescer
Systems with high concentrations of solid contaminant
Particulate protection for non-lubricated systems
