* A lubricator adds controlled quantities of tool oil into a compressed air system to reduce the friction of moving components. Most air tools, cylinders, valves, air motors, and other air-driven equipment require lubrication to extend their useful life.
* The use of an airline lubricator solves the problems of too much or too little lubrication that arise with conventional lubrication methods such as a grease gun or oil. Airline lubricators also supply the right kind of lubricant for the tools used.
* Once the lubricator is adjusted, an accurately metered quantity of lubricant is supplied to the air-operated equipment. The only maintenance required is a periodic refill of the lubricator reservoir.
* Adding lubrication to a system also “washes away” compressor oils that travel through the system in vapor form. Mineral oils added to the system prevent synthetic compressor oil build-up on system components. When lubricators are not used in a system, a coalescing filter should be installed to remove compressor oil aerosols.