The ARO E252LM is a heavy-duty, 3-way, 2-position manual air control valve.

Purpose & FunctionThe ARO E252LM is a heavy-duty, 3-way, 2-position manual air control valve. It acts as a mechanical switch to dictate how pressurized air flows through a pneumatic machine loop.Standard Operations: Because it is structured as a normally closed (NC) valve, air entry is completely blocked until you physically push or pull the black hand lever.Actuator Activation: Flipped forward, the valve shifts to open up the 1/4" NPT input line. This routes high-pressure air downstream to activate tools such as single-acting pneumatic cylinders, vacuum pads, or air clamps.Exhaust Release: When you manually return the lever back to its rest position, the upstream line safely vents back out through its designated exhaust port to quickly drop tool pressure.