Pressure plugging is a technique commonly used in pipe installation and maintenance to block or isolate fluid or gas in a pipe. In this method, pressure is applied to the plugging device to stop the leakage of fluid or gas. Below I will introduce the installation method with pressure plug in detail.

1. Prepare

Before performing a pressure plug, some preparatory work must be done first. This includes determining the location and size of the plugging point, checking the status of the plugging device, selecting the appropriate plugging device and plugging material, and preparing the necessary tools and equipment.

2. Prepare pipelines

The pipeline needs to be prepared before a pressure plug can be performed. First, make sure the pipes are clean and free of impurities and dirt. If necessary, use detergent or high pressure water to clean the pipe. Then, check the exterior and internal condition of the pipe to make sure there is any damage or corrosion.

3. Install plugging devices

Select the appropriate plugging device, and insert the plugging device into the pipeline according to the size and requirements of the plugging point. The plugging device can be an air cushion, rubber tube plug, mechanical plugging device, etc. Ensure that the plugging device is able to completely seal the line and prevent fluid or gas leakage.

4. Apply pressure

After the plugging device is installed, pressure needs to be applied to ensure the plugging effect. Manual or automatic pressure pumps can be used to transfer pressure to the plugging device. The size of the pressure should be determined according to the requirements of the pipeline and the specifications of the plugging device.

5. Check the blocking effect

Once the pressure has been applied, the sealing effect needs to be checked. Pressure gauges or other detection tools can be used to measure the pressure inside the pipe and ensure that the pressure remains stable. You can also use leak detectors or other methods to detect if a leak has occurred.

6. Stabilization measures

In the process of sealing with pressure, necessary measures must be taken. Ensure that personnel wear appropriate personal protective equipment, including gloves, goggles and protective clothing. At the same time, follow the operating procedures to ensure the safety of operators.

7. The plugging is complete

After plugging is completed, the pressure should be gradually reduced in accordance with the operating procedures and released to the level. The plugging device can then be removed and the necessary cleaning and maintenance carried out.

Plugging with pressure is a complex job that requires experienced technicians to operate. Before performing a pressure plug, it is important to understand the relevant operating procedures and stability requirements in detail and to ensure that the operator has the necessary skills and knowledge.