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It can be measured as a dew point temperature. Water: Humidity is a natural occurrence as water vapor in the surrounding air.
Compressor 4.4 iso#
There are other types of filtration systems depending on your ISO requirement. EXAIR offers two types Filter Separators with 5-micron filtration and Oil Removal Filters with 0.03-micron filtration. The removal of particles from the compressed air is done by traps and compressed air filters. In the ISO column for Particles, it is separated into three different micron ranges and concentrations. Other particles can come from components inside the air compressor, valves, etc., that wear and breakdown. Over time, rust will flake off and create particles that can affect pneumatic equipment. Another part is rust particles that occur from steel air pipes and receiver tanks. The smaller diameter particles will go through the filter and into the compressed air system. The surrounding ambient air that is being drawn into the air compressor is filtered but the intake filter will only remove large diameter particles.
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As the air exits your air compressor and travels into your pneumatic system, there is so much contamination that the International Standard Organization, ISO, created an Air Quality chart with Purity Classes. So, compressed air is not only expensive to make, but very dirty. When a compressor compresses this air, the concentration increases substantially. In a general work environment, nearly four million particles per cubic foot is floating around us at any given time. Airborne particles surround us everywhere.