Pressure plugging is a common engineering technique used to stop or repair leaks or losses in pipes, equipment, or structures. It is an effective sealing method that provides a safe and reliable seal in high temperature environments, protecting equipment and personnel from possible hazards.

The suitable temperature for sealing with pressure mainly depends on the material and performance of the sealing material used. Several commonly used sealing materials are described below.

High temperature resistant rubber: High temperature resistant rubber is a material that can maintain elasticity and corrosion resistance in high temperature environments. It is usually composed of polymers and high temperature resistant additives that can withstand the pressure and corrosion of chemicals in high temperature environments. This material can provide durable sealing performance in high temperature environments and is suitable for sealing work at temperatures above 200 ° C.

2. Metal sealing: Metal sealing is a commonly used high temperature sealing method, usually using metal gaskets or metal fillers to achieve. Metal gasket can withstand high temperature and high pressure force, and has good corrosion resistance, suitable for the temperature of more than 200℃ sealing work. Metal fillers, such as metal mesh and metal fibers, can be used to fill gaps or cracks in pipes or equipment to achieve effective plugging.

3. High temperature resistant adhesive: High temperature resistant adhesive is an adhesive specially designed for high temperature environment. It has high temperature adhesion and high temperature resistance, and is suitable for sealing work at temperatures over 200℃. This adhesive can be used to fix and seal components in pipes, equipment and structures, with high bonding strength and corrosion resistance.

In addition to selecting the sealing material suitable for high temperature environment, sealing with pressure also needs to consider other factors, such as installation method, sealing technology and working conditions. Before performing pressure plugging work, the working environment must be carefully evaluated to ensure that the selected materials and methods can meet the requirements of high temperature environments.

In addition, in order to ensure the effectiveness and stability of sealing with pressure, it is necessary to follow the relevant operating procedures and standards, such as the use of appropriate tools and equipment, rigorous inspection and testing, timely maintenance and repair.

In summary, the temperature suitable for sealing with pressure mainly depends on the performance of the sealing material used and the environmental conditions. The selection of high temperature resistant materials, proper installation and operation can ensure the effectiveness and safety of pressure plugs in high temperature environments.

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