In a standard FRL unit, which component is responsible for adding controlled lubrication to the air?

In a standard FRL unit, which component is responsible for adding controlled lubrication to the air?

• A. Filter
• B. Regulator
• C. Lubricator
• D. Reservoir

Answer: (C)

In a pneumatic system, the FRL unit handles three conditioning steps in order: filtration to clean the air, regulation to set the proper pressure, and lubrication to protect internal components. The part that adds lubrication to the air is the lubricator. It contains an oil reservoir and a metering mechanism that releases a controlled, small amount of oil into the airstream as it passes through. This controlled addition keeps cylinders and valves moving smoothly and reduces wear. The other parts have different roles: the filter removes particles and moisture, the regulator fixes the downstream air pressure, and the reservoir stores the oil for the lubricator. On its own, a reservoir won’t lubricate the air; lubrication requires the dedicated lubricator to meteredly introduce oil into the stream.

In a pneumatic system, the FRL unit handles three conditioning steps in order: filtration to clean the air, regulation to set the proper pressure, and lubrication to protect internal components. The part that adds lubrication to the air is the lubricator. It contains an oil reservoir and a metering mechanism that releases a controlled, small amount of oil into the airstream as it passes through. This controlled addition keeps cylinders and valves moving smoothly and reduces wear.

The other parts have different roles: the filter removes particles and moisture, the regulator fixes the downstream air pressure, and the reservoir stores the oil for the lubricator. On its own, a reservoir won’t lubricate the air; lubrication requires the dedicated lubricator to meteredly introduce oil into the stream.