At each pneumatic work station, the proper sequence of components is which of the following?

At each pneumatic work station, the proper sequence of components is which of the following?

• A. Lubricator - filter - regulator
• B. Regulator - lubricator - filter
• C. Filter - regulator - lubricator
• D. Lubricator - filter - regulator

Answer: (C)

In pneumatic systems, air is prepared in stages so it protects, stabilizes, and conditions what reaches the workstations. Start with a filter to remove particulates and moisture, safeguarding downstream components and preventing contaminants from clogging or gumming up the system. Next, use a regulator to set a consistent downstream pressure so tools operate with the same force and performance. Finish with a lubricator to add a controlled amount of oil to the air, which helps moving parts stay lubricated after pressure is established and the air is clean. That means the best sequence is filter first, then regulator, then lubricator. If the order changes, dirty air could reach the regulator and downstream parts, causing wear or inconsistent performance, and placing lubrication before proper filtration and regulation can contaminate the system and disrupt pressure control.

In pneumatic systems, air is prepared in stages so it protects, stabilizes, and conditions what reaches the workstations. Start with a filter to remove particulates and moisture, safeguarding downstream components and preventing contaminants from clogging or gumming up the system. Next, use a regulator to set a consistent downstream pressure so tools operate with the same force and performance. Finish with a lubricator to add a controlled amount of oil to the air, which helps moving parts stay lubricated after pressure is established and the air is clean.

That means the best sequence is filter first, then regulator, then lubricator. If the order changes, dirty air could reach the regulator and downstream parts, causing wear or inconsistent performance, and placing lubrication before proper filtration and regulation can contaminate the system and disrupt pressure control.