Pressure plugging is a technique used to protect piping systems by stopping fluid movement in the piping and providing the necessary stabilization measures to ensure the stability of workers and equipment. In this article, I will go into detail about pressure grades with pressure plugs, including their definition, common pressure grades, and application areas.

First, let's take a look at the definition of a pressure plug. Pressure plugging refers to the application of pressure in the pipe system to stop the flow of fluid and maintain the seal of the pipe. This technology is often used for pipeline maintenance, stability checks, equipment replacement and emergency handling. Before performing a pressure plug, it is necessary to ensure that the pressure level of the piping system meets the requirements and to take appropriate measures to ensure the stability of the operation.

In the process of sealing with pressure, the pressure level is a very important parameter. Pressure rating refers to the strength and range of pressure applied in the piping system. Specifically, it indicates the greater pressure that the piping system can withstand. Different piping systems and application areas usually have different pressure levels.

Common stress levels include 150, 300, 600, 900, 1500, and 2500. These pressure grades represent the greater pressure that the piping system can withstand, typically in pounds of force per square inch (PSI). For example, a pressure rating of 150 pound-force per square inch indicates the greater pressure the piping system can withstand. It is important to note that these stress levels are based on US standards and other regions may have different stress rating systems.

Different application areas have different requirements for pressure levels. For example, in the oil and gas industry, higher pressure grades are often used because the pipeline system in these industries needs to withstand the impact of high-pressure fluids. In some low-pressure applications, such as water supply and drainage systems, lower pressure levels are often used.

In order to ensure the stability of the sealing operation with pressure, the appropriate sealing tools and materials must be selected according to the requirements of the pressure level. Plugging tools usually include plugging devices, check valves and sealing gaskets. These tools need to undergo rigorous testing and certification to ensure that they can withstand the required pressure levels.

To summarize, pressure plugging is a technique used to protect pipeline systems, and pressure level is an important parameter in the process of pressure plugging. Common pressures include 150, 300, 600, 900, 1500 and 2500, etc., and different application fields have different requirements for pressure levels. Selecting the right plugging tools and materials and operating in accordance with the requirements of the pressure level can ensure the stability of the plugging operation with pressure.