Working Principles of Overcenter valve

Overcenter valve are commonly used fluid control devices designed to automatically regulate fluid pressure, ensuring system stability. These valves typically consist of a valve body, valve core, spring, and adjustment mechanism. The working principle involves adjusting the position of the valve core to alter the channel area through the valve body, thereby controlling fluid pressure.

As fluid enters the balancing valve, it flows through the valve body's channel. The position of the valve core determines the degree of channel opening, influencing the fluid's speed and pressure. When the fluid pressure exceeds the set value, the valve core is pushed towards the closed direction, reducing the channel opening and lowering fluid speed to decrease pressure. Conversely, when fluid pressure is below the set value, the valve core is pushed towards the open direction, increasing the channel opening, raising fluid speed, and consequently increasing pressure.

The adjustment mechanism of the balancing valve typically consists of a spring and an adjustment nut. The adjustment nut can modify the compression degree of the spring, thereby changing the position of the valve core. By adjusting the nut, the working pressure range and sensitivity of the balancing valve can be modified to suit different operating conditions.

The operating principles of Overcenter valve are based on fluid dynamics and spring mechanics. As fluid passes through the valve body, resistance and pressure differences are generated. Resistance exerts a reverse force on the valve core, while pressure differences apply a forward force. When these forces balance, the valve core remains in a fixed position, and fluid pressure stays stable.

The working principles of Overcenter valve also involve the conversion of fluid kinetic energy and energy losses. As fluid passes through the valve body, its kinetic energy is converted into pressure energy, increasing fluid pressure. However, due to the presence of the valve core, energy losses occur as fluid passes through the valve body, leading to a decrease in fluid pressure. Design considerations for Overcenter valve must account for these energy losses to ensure precision in fluid pressure control.

In summary, the working principles of Overcenter valve involve adjusting the position of the valve core to control the opening of the channel, thereby regulating fluid pressure. These valves utilize fluid dynamics and spring mechanics, achieving stable fluid control through the balance of resistance and pressure differences. Design considerations for Overcenter valve include the conversion of fluid kinetic energy and energy losses to ensure accurate fluid pressure control.

Ningbo Weisenbl Machinery Manufacturing Co., Ltd