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Why filter compressed air and gas?
Submicronic contaminants in compressed air systems plug orifices of sensative pneumatic instrumentation, wear out seals, erode system components, reduce the absorptive capacity of desiccant air/gas dehydrators, foul heat transfersurfaces, reduce air tool efficiency, and damage finished products.
For example, trace amounts of 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 lines. 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.
What does the term “membrane differential pressure” mean?
It is the difference between the inlet port pressure and the pressure immediately downstream of the membrane. When the flow rate through the outlet port is below the model’s maximum recommended flow rate for a given membrane, then the membrane differential pressure will typically be below 2 psi providing that all of the
membrane area is available for flow.