Oil is necessary to run your compressed air equipment. Oil-flooded compressors rely on oil for proper lubrication of mechanical components, and oil is necessary for the lifespan of your mechanical equipment.
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Most industrial air compressors are oil-lubricated, also known as oil-flooded compressors. This means that oil is used in the air end to lubricate the moving parts and prevent wear. Depending on the pump you have in place, it will determine what type of oil you need and how that oil is introduced into the air-end.
During the compression process, oil is injected into the housing, whether it be a rotor or a piston. The oil prevents the equipment from directly contacting each other while still allowing the parts to move together. To prevent this oil from depleting quickly and getting downstream, the oil is separated out before the compressed air leaves.
Oil-water separators are necessary to separate oils and lubricants from the water created during compression. By removing the oil, the water can be dumped, and the oil can be recycled for the next round of compression. The recycling of the oil requires regular oil changes, eventually, it will no longer be clean and can harm your compressed air.
There are several benefits and functions to using oil as a lubricant in your compressed air operation.
The moving components are lubricated by oil to reduce friction and ease movement.
Oil can cool the air during compression, preventing the air from overheating.
Especially in rotary screw compressors, the oil creates a seal between the rotors to trap air. Sealing the air makes the compression process smoother.
Less friction prevents premature wear and tear while extending the life of your air-end.
It may seem counterintuitive, but as the oil travels through the compressor, it collects tiny particles. These particles also contribute to the need to replace oil.
By properly lubricating your compressed air system, the noise generated by moving parts is minimized and muffled. It isn’t a full noise reduction solution but it does improve the audio level.
Oil for air compressors protects the metal from moisture and contaminant damage. The oil contains rust and corrosion inhibitors to reduce the likelihood of this occurring.
The most common models of lubricated air compressors are:
Oil-flooded rotary screw compressors are going to be the most common of these found in industrial applications. Whether powering pneumatic conveying, manufacturing lines, or power tools, they provide consistent air and are reliable across many industries.
No matter the model you choose, adequate filtration for these compressors is necessary for high-quality air. Oil water separators and inline filters extend the lifespan of your equipment and oil. They remove debris and contaminants alongside any last traces of oil that may be present in the air.
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