Structural principle of manual directional valve

The manual directional valve is mainly composed of components such as the valve body, sealing components, cam, valve stem, handle, and valve cover. The valve is driven by a handle, which drives the valve stem and cam to rotate. The cam has the function of positioning and locking the sealing components for opening and closing. The handle rotates counterclockwise, and the two sets of sealing components close the two channels at the lower end under the action of the cam, while the two channels at the upper end are respectively connected to the inlet of the pipeline device. On the contrary, the two channels at the upper end are closed, and the two channels at the lower end are connected to the inlet of the pipeline device, achieving non-stop reversing.