The oil-free screw compressor element
No oil means that there is absolutely no essential oil for sealing the rotors and for cooling the Oil-free Screw Air Compressor compressed atmosphere, elements and rotors. … The component is certainly cooled by cooling drinking water that flows through special pockets in the element casing.
In a lubricated screw compressor, the lubricant comes in direct in touch with the compressor inlet air and compressed air. … The oil contains anti-oxidants to try to reduce the breakdown of the lubrication properties because of internal conditions.