Airline lubricators, Figure 8, meter oil from a reservoir into the moving air-stream. As high-velocity air passes through a venturi, it draws the oil up and through a capillary, then drips it into the air-stream. ... In a typical lubricator, all of the air passes through the venturi during low-flow conditions.

How does an inline lubricator work?

The lubricator works in this manner. The upper chamber is pressurized to the same pressure as the lower chamber. When the tool is turned on, by depressing the throttle, the air rushes through the lower chamber of the lubricator. When air flow is sufficient the pressure in the lower chamber drops.

How do lubricators work?

Aerosol lubricators automatically deliver a metered amount of oil into the air path of operating pneumatic equipment. Lubricators function by creating a pressure drop that causes oil to be siphoned into an adjustable dome.