Air-Oil Separators

Air oil separators remove compressor lubricant from the compressed air stream. The compressor lubricant is returned to the oil sump and the compressed air continues to the air receiver. 
A typical oil separator reduces the lubricant entrained in the compressed air to 2-3 ppm. Under normal operating conditions an oil separators service life is 4,000 to 6,000 operating hours. Air/oil separators are also called oil separators and demisters.