Characteristics, working principle and application of shut-off directional valve

Stop Check Valve is a common type of valve that functions as both a stop valve and a directional valve. It can control the flow of the medium and change the direction of flow when the valve is closed or opened. The following will introduce the characteristics, working principle, and application of the shut-off directional valve.

The characteristics of the shut-off directional valve:

1. Multifunctionality: The cut-off directional valve can achieve the cut-off function of the medium and adjust the flow direction. This makes the valve suitable for various fluid pipeline systems, achieving convenient fluid control.

2. Compact design: Compared to a combination of separately installed globe valves and directional valves, the design of globe directional valves is more compact and occupies less space. This can simplify the pipeline layout and save installation and maintenance costs.

3. High reliability: The shut-off directional valve adopts a reliable sealing structure, which can effectively prevent medium leakage. The valve disc seal is reliable, and has low seat friction and wear, extending the valve life.

4. Flexible adjustment: The disc of the shut-off directional valve can be quickly opened or closed, and the fluid direction can be adjusted through manual or automatic control. This makes fluid control more flexible and precise.

The working principle of the shut-off directional valve:

-When the valve is closed, the disc and seat of the shut-off directional valve are completely sealed, preventing the passage of medium. In this state, the valve acts as a shut-off valve, ensuring that the medium does not reverse flow.

-When the valve opens, the disc leaves the valve seat and the medium can flow smoothly through the valve. In this case, the valve acts as a directional valve, which can change the flow direction of the medium.

Application of shut-off directional valve:

-Refining industry: In the refining process, shut-off and reversing valves are widely used in various process systems, such as refining, separation, and storage and transportation systems, to achieve medium shut-off and reversing control.

-Chemical industry: In chemical production, globe valves are used to control the flow of various liquids, gases, and vapors, and are suitable for equipment such as tanks, pipelines, and reactors.

-Aircraft and aviation fields: Shutoff and directional valves are widely used in aircraft and aviation systems, such as brake systems and hydraulic systems, to achieve fluid cut-off and directional control.

-Various types of industrial engineering: globe directional valves are suitable for various industrial engineering fields, such as power, metallurgy, papermaking, water supply, etc., to achieve control and regulation of fluid pipeline systems.

In summary, shut-off directional valves play an important role in many industrial fields. Its versatility, reliability, and flexibility make it an ideal choice for achieving medium control. Whether in the process flow, aviation, chemical, and other industrial fields, globe directional valves can provide stable and reliable fluid control solutions.