Pressure plugging is a common engineering technique, mainly used for stable maintenance and repair of pipelines, containers or equipment. According to different sealing objects and construction needs, sealing with pressure can be divided into many types.

1. Basic principles of sealing with pressure

Pressure plugging is to isolate the medium by setting a reliable plugging device on the pipeline or container to prevent leakage or pollution of the external environment. The basic principle is to apply pressure around the plugging point to seal and tighten the plugging device, and achieve effective plugging effect through the pressure difference.

2. Rubber ball with pressure sealing

The rubber ball is sealed by inflating the special rubber ball and pushing it to the sealing point through the pressure of the medium in the pipeline or container to form a seal and prevent the medium from leaking or external impurities from entering. Rubber ball expansion with pressure sealing is suitable for large diameter pipes and containers.

3. The pipe baffle is sealed with pressure

The pressure sealing of the pipeline baffle is to prevent the flow of the medium by installing the special baffle in the pipeline to make it closely fit with the inner wall of the pipeline. By applying pressure on both sides of the baffle, a better sealing effect can be achieved. Pipe baffle with pressure sealing is suitable for small diameter pipes and containers.

4. The metal sealing is sealed with pressure

Metal sealing with pressure sealing is to install a special metal sealing device on the pipeline or container, and closely fit it with the pipe or container wall through pressure to form an effective sealing. Metal sealing belt pressure sealing is suitable for high pressure, high temperature, corrosive media and other special environment.

5. Weld the sealing tape to seal

Welding sealing with pressure sealing is a sealing effect formed by welding the sealing device and the wall of the pipeline or container. Welding sealing with pressure sealing is suitable for long-term sealing or the sealing effect is very strict.

6. Coil sealing with pressure sealing

Coil sealing with pressure sealing is by winding a special coil sealing device around the outer wall of the pipeline or container, through the tight wrap of the coil, to achieve the sealing of the medium. Coil sealing with pressure sealing is suitable for pipes and containers with complex shapes.

7. Adhesive sealing with pressure sealing

Adhesive Sealing Tape sealing is done by applying a special adhesive to a pipe or container to form a strong sealing layer. Adhesive sealing with pressure sealing is suitable for some special shape pipes or containers, such as bent pipes, tees, etc.

8. Water sealing with pressure sealing

Water sealing with pressure sealing is to use the pressure of water to achieve the sealing effect by injecting a large amount of water into the pipeline or container. Water sealing with pressure sealing is suitable for some small and medium diameter pipes and containers.

The above are common types of writing tape sealing, and each type has its specific application scenarios and technical requirements. In the actual project, it is necessary to choose the appropriate plugging method according to the specific situation, and carry out the detailed construction plan and stability measures.