Working principle of Huade hydraulic one-way valve

Hello, what is the working principle of Huade hydraulic one-way valve? Huade hydraulic check valve is a kind of valve commonly used in hydraulic system, which has the function of automatically making liquid flow in one direction and preventing liquid from flowing in the opposite direction. Let's briefly explain the working principle of Huade hydraulic one-way valve:

1. Flow direction: the hydraulic check valve has an inlet and an outlet, and the liquid enters the valve body from the inlet and flows out from the outlet. The flow direction is indicated by arrows or signs on the valve body.

2. Spring and spool: Hydraulic check valves usually include a piston or spool with a loaded spring. The function of the spring is to exert resistance and keep the valve core in the closed position. When there is no external pressure or liquid to push, the spring keeps the valve core closed.

3. Pressure difference: When positive pressure (indicated by arrow) acts on the spool, it will overcome the resistance of the spring and push the spool to the open position. The liquid can freely pass through the passage of the valve body and flow from the inlet to the outlet to complete the downstream flow.

4. Anti-backflow: When the reverse pressure (opposite to the flow direction) acts on the valve core, it will increase the pressure of the spring and keep the valve core in the closed position. In this way, the valve core prevents the reverse flow of liquid and realizes the function of one-way valve. To sum up, Huade hydraulic one-way valve allows fluid to flow freely in one direction to prevent backflow. It mainly pushes the valve core to open by positive pressure, so that the liquid flows, while under the reverse pressure, the spring keeps the valve core closed and prevents the liquid from flowing. This working principle makes the hydraulic check valve play an important role in controlling and protecting the hydraulic system.