Speedaire 4ZL69A Air Line Lubricator

Speedaire 4ZL69A Air Line Lubricator is a compact Micro Mist lubricator designed to inject a fine oil mist into a 1/4 in NPT compressed-air line, lubricating downstream pneumatic components such as cylinders, valves, and actuators while supporting reliable operation in automated tooling environments. It features a zinc body with a 1/4 in NPT inlet and is rated for up to 50 CFM of airflow at a maximum operating pressure of 150 psi, making it suitable for many shop and light-industrial pneumatic circuits. The unit includes an oil drop controller to meter lubricant delivery into the air stream for consistent lubrication without over-oiling. Commonly used in Speedaire FRL configurations, the lubricator integrates with other Speedaire air-line components and uses standard 1/4 in NPT piping found in a wide range of pneumatic tools and equipment. The micro-mist design enables efficient lubricant delivery in small-diameter lines, helping maintain smooth operation across intermittent and continuous cycles.