China Direct Buried Gate Valve: Protecting Underground Pipelines

I. Overview of Direct Buried Gate Valve

1). Definition and Structure
The direct buried gate valve is a valve specially designed for underground pipeline systems. It can be buried directly underground without additional ground facilities. The structure of the direct buried gate valve usually includes valve body, valve seat, gate, valve stem and actuator, and its design fully considers the special requirements of the underground environment.

2). Working Principle
The direct buried gate valve controls the opening and closing of the gate through the up and down movement of the valve stem, thereby realizing the circulation and cutoff of the pipeline medium. Under normal circumstances, the gate is in a closed state. When the medium needs to be transported, the valve stem is driven by the actuator to make the gate rise and the medium channel open.

II. Features of Direct Buried Gate Valve

1). Strong anti-corrosion performance
The direct buried gate valve adopts special materials and coatings, has good anti-corrosion performance, and can adapt to the humid and changeable soil environment underground.

2). Compact structure
The direct buried gate valve has a compact design and a small footprint, which is easy to install in an environment with limited underground space.

3). Easy maintenance

The maintenance of the buried gate valve is mainly concentrated on the actuator on the ground. It can be repaired without digging the ground, which greatly reduces the maintenance cost.

4). Safe and reliable

The buried gate valve has good sealing performance. Even in the case of large underground pressure fluctuations, it can effectively prevent medium leakage and ensure the safety of the pipeline system.

III. Application of buried gate valves in underground pipeline systems

1). Emergency cut-off

When the pipeline leaks or other emergencies occur, the buried gate valve can quickly cut off the flow of the medium to prevent the accident from expanding.

2). Maintenance and overhaul

When the pipeline system needs maintenance or overhaul, the buried gate valve can easily isolate the pipeline to ensure the safety of the operation.

3). Flow control

By adjusting the opening degree of the buried gate valve, the pipeline flow can be accurately controlled to meet the needs of different working conditions.

4). Prevent backflow

The two-way sealing design of the buried gate valve effectively prevents the backflow of the pipeline medium and protects the normal operation of the pipeline system.

As the guardian of the underground pipeline system, the buried gate valve gate-valve plays an important role. It not only ensures the safe and stable operation of the pipeline system, but also greatly improves the management efficiency of the pipeline system. With the acceleration of urbanization and the increasing complexity of underground pipeline networks, the application of direct-buried gate valves will become more extensive, and their position in urban infrastructure construction will become more prominent. Therefore, understanding and promoting the technology and application of direct-buried gate valves is of great significance to improving the safety level of my country's urban underground pipeline systems.