EN 
中文简体A shuttle valve is a type of valve that allows the flow of fluid in one direction while blocking it in the opposite direction. It consists of a housing with two ports, each connected to a separate fluid system, and a shuttle that can move between them. When the pressure in one system exceeds the pressure in the other, the shuttle moves and opens the valve, allowing the fluid to flow through.
Shuttle valves are commonly used in hydraulic and pneumatic systems where it is necessary to switch between two separate systems while maintaining their individual pressures. For example, they can be used to control the direction of fluid flow in a hydraulic cylinder, allowing it to extend and retract depending on the system's pressure.
Shuttle valves can also be used in situations where one fluid system needs to be isolated from another, such as in the case of emergency shutdowns or system maintenance. By preventing backflow, they help to ensure the safety and reliability of the overall system.
Overall, shuttle valves provide a simple and reliable way to control fluid flow in a variety of industrial applications. They are particularly useful in situations where multiple fluid systems need to be connected, switched, or isolated from each other.
