Solenoid operated directional valves are used to control the flow of hydraulic fluid. These valves have a spool for movement into a desired position and a detent means that prevents the spool from moving in the opposite direction. The spool moves with a force associated with the solenoid that is displaced axially.

Solenoid valves are typically available with DIN, AMP, Deutsch, or lead-wire connections. They have advantages such as low leakage and low power consumption. They are available in hydraulic, pneumatic, and mechanical designs. If you need a high-pressure valve, you can choose a solenoid valve with an oil-immersed armature.

A typical solenoid operated directional valve has a valve body 12, a valve spool 40, and two solenoids. The valve spool 40 has opposite ends that engage solenoid pins mounted on solenoids 16 and 18. Solenoid 18 energizes solenoid pin 48 and moves it from a right-to-left position. Hydraulic fluid enters the valve through port 20 and passes through passageways 22 and 36 to the outlet port 32.

When the valve is closed, the solenoid is no longer needed to control flow. The solenoid's inclination is six degrees. The solenoid has a long life and will last a long time.