A directional control valve is a crucial component of any hydraulic or pneumatic system. It allows the flow of fluid to be controlled into different paths and is usually comprised of a spool contained within a cylinder. It can be either electrically or mechanically actuated. The valve itself can be manually or automatically operated.

These valves are used in various applications and are characterized by their complex functions.  The directional control valves are available in both direct and pilot operating versions. They are designed to work under potentially explosive atmospheres. In addition, they can be used in low-temperature applications.

A directional control valve has a number of advantages. The main feature of this valve is its ability to control both the speed and movement of the actuator. These valves typically contain a single sliding spool, which moves up and down inside the valve. This allows it to direct hydraulic flow through a number of different pipelines. These valves are designed to have high tolerances, and their bores and spools are manufactured using specialist machines.

A directional control valve has two ports: the outlet and inlet. A valve in one position will block the flow, while another one will allow it to flow in the opposite direction. If the valve is blocked in one direction, it's considered to be "at rest." The other port, or inlet, is "active." This valve will open the flow path from the opposite direction.