- FRL's should be in the order of filter first, regulator second, and lubricator third in the line of a pneumatic system.
- Filters are important to prevent excessive wear and early failure of air cylinders, valves, tools, and other components from microscopic contamina
- Regulators reduce the higher pressure in the system to be more suitable for each machine or application in the system.
- Lubricators inject a finely divided oil mist into the air stream to lubricate components downstream. This includes valve spools, cylinder pistons,
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