Why an air line lubricator?

by John Caldwell
(Roswell, GA)

Your article goes to great length, as well as many other experts on air systems, to keep water out of the lines.

Water causes a mess, particular when painting and a small bit comes on to the surface of the item being painted.

With that in mind, why would I want to introduce oil in the line to also come out and spatter things? Doesn't make sense to me to spend lots of bucks removing water and then more bucks to introduce oil in the line resulting in the same thing. Thanks in advance for your response! Enjoy your articles

While many air components come "factory lubed for life" many also do not.

Those air components, typically air cylinders and air tools, require the presence of lubricating oil in the air stream to operate properly, particularly air cylinders in high cycle applications.

Air tool and air component lubricating oil is not the same oil that comes our of the compressor. So, one could find oneself using a coalescent air filter to remove the compressor generated oil in the air stream, and then, downstream from that, an in-line lubricator to add lubricating oil for that application.

For most DIY type air compressor users, there isn't much need for an in-line oiler. For air tools, a few drops of oil in the intake when the job is done, a quick burst of air to distribute the oil, and the tool is ready for it's next operation.

Though, if you are using an air tool continuously then you would want to oil it.

Hope this helps.

Cheers and thanks for your kind comments.


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