ARO 5631-43-02 Airability Pneumatic Air Limit Switch 3-Way Valve with a 1/4" NPT roller actuator is a three‑way circuit valve in the ARO 400 Series that senses the end position of a moving part and directs compressed air accordingly. It uses 1/4" NPT ports and can be configured for normally passing, normally nonpassing, selector, or any two‑way valve function; four actuator options are available, including nylon roller, steel roller, rod lever, or adjustable roller lever. For best performance, ARO recommends using a filter–regulator–lubricator (FRL) unit between the air supply and the valve to ensure clean, regulated airflow and proper lubrication.
