How does a solenoid-operated directional valve works?

A solenoid-operated directional valve controls the flow of fluids in hydraulic or pneumatic systems using an electromagnetic solenoid. When electrical current is applied to the solenoid, it generates a magnetic field that moves a plunger or armature, shifting the valve's position. This change redirects the flow of fluid through different ports of the valve, allowing for controlled movement or operation of actuators like cylinders or motors. The valve can be reset to its original position when the current is turned off, stopping the fluid flow in the previous path.