A pressure plug is an emergency plug in a pipe or container. It is generally used in leakage or explosion accidents in pipelines or containers to achieve the purpose of plugging the leak or explosion point. The pressure plugging device is generally used to expand the plug, also known as the expansion tube plug or expansion tube plug, its working principle is by filling the leak or the air or liquid near the explosion point in the tube, the plug device expands to the wall of the pipeline or container, so as to achieve the leak or explosion point of the plug.

The working principle of sealing with pressure can be divided into the following steps:

1. Preliminary assessment and preparation

A preliminary assessment must be carried out before a pressure plug can be performed. It is first necessary to determine the location of the leak or explosion, as well as the surrounding environment and conditions. Then it is necessary to choose the appropriate plugging appliance and prepare the necessary tools and equipment.

2. Install plugging devices

The installation of plugging devices depends on the actual situation. In general, it is necessary to assemble the parts of the plug appliance first, then insert it into the pipe or container, and inflate it through a pump or gas cylinder to expand it to the wall inside the pipe or container.

3. Plug the leak or explosion point

Once the plug is installed and inflated, you can begin to plug the leak or explosion site. If it is a pipe leak, the leak can be stopped by closing the valves at both ends of the pipe. If it is a leak or explosion in the container, it can be blocked using other plugging devices or manual plugging methods.

4. Check the blocking effect

After plugging with pressure, it is necessary to check the plugging effect. A manometer or other tool can be used to measure the pressure inside a pipe or container. If the pressure is stable and no leakage is found, the plugging is successful.

In general, the working principle of pressure plugging is to achieve the closure of the leak or explosion point by expanding the plug to the wall of the pipe or container. Prior to a pressure plug, a preliminary assessment and preparation work are required, as well as the selection of the appropriate plug tool. After installing the plugging device, it is necessary to plug the leak or explosion point, and check the plugging effect.

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