Structural principle of right angle one-way valve（1）

When the fluid enters from the inlet end, the pressure acts on the valve core, overcoming the elasticity of the spring, causing the valve core to leave the valve seat, thereby opening the channel and allowing the fluid to flow towards the outlet end. When the fluid flows in the opposite direction, the valve core is tightly attached to the valve seat under the action of spring force, preventing the fluid from passing through and achieving one-way flow. In addition, some right angle one-way valves also include a spring. When there is no pressure difference, the force between the spring and the fluid is balanced, and the valve remains closed; When there is fluid passing through, the valve is pushed open, allowing the fluid to flow.