How does a slide type selector valve control fluid direction?

A slide type selector valve controls fluid direction primarily by moving a spool. This design involves a cylindrical component, known as a spool, that can shift within the valve body. As the spool moves from one position to another, the internal passageways of the valve are uncovered or blocked, thereby directing the flow of fluid through specific outlets depending on the spool's position.

This system is effective because it allows for precise control over the path that the fluid takes, enabling the selection of different circuit configurations within hydraulic or pneumatic systems. The movement of the spool is typically actuated by a handle or lever, but the key mechanism in determining fluid direction is the position of the spool itself within the valve.