Air separators for air compressor removes compressor lubricant from the compressed air stream. During the normal operation, the compressor lubricant is returned to the oil slump and the compressed air continues to the air receiver.
Features of air separators are:
- Deliver oil carryover 2-3ppm
- At installation, typically pressure differential is around 24psig
- Able to withstand pressure differentials during normal operations and routine surge demands
- Compatible with synthetic and mineral lubricants including DIESTERS and PAO’s.
A particulate air filter elements is a device composed of fibrous materials which removes solid particulates such as dust, pollen, mold, and bacteria from the air. A chemical air filter consists of an absorbent or catalyst for the removal of airborne molecular contaminants such as volatile organic compounds or ozone. Air filters are used in applications where air quality is important, notably in building ventilation systems and in engines.
Some buildings, as well as aircraft and other man-made environments (e.g., satellites and space shuttles) use foam, pleated paper, or spun fiberglass filter elements. Another method, air ionisers, use fibers or elements with a static electric charge, which attract dust particles. The air intakes of internal combustion engines and compressors tend to use either paper, foam, or cotton filters. Oil bath filters have fallen out of favor. The technology of air intake filters of gas turbines has improved significantly in recent years, due to improvements in the aerodynamics and fluid-dynamics of the air-compressor part of the Gas Turbines.
The filter traps and removes airborne contaminants from the air drawn into the air compressor. In a dusty and dirty manufacturing or shop environment, the dirt in the air increases the internal friction and wear rate of the internal parts. An air compressor filter should meet original equipment manufacturers (OEM) specifications. Less expensive, poorly designed filters may fit into the filter housing but still allow contaminants into the compressors internal workings.