How much pressure can boiler tubes withstand?

Boiler tubes are a key component in industrial boiler systems, and their ability to withstand pressure is directly related to the safety and efficiency of the system. So, how much pressure can boiler tubes withstand?

The pressure that boiler tubes can withstand varies depending on the material, specifications and design. Generally speaking, the working pressure of high-pressure boiler tubes can reach more than 6.4Mpa, but the specific pressure bearing capacity needs to be determined comprehensively based on factors such as the yield strength, wall thickness and use environment of the pipe. To ensure safety, it is necessary to refer to the technical specifications and safe working pressure range provided by the manufacturer.

Pressure bearing capacity of boiler tubes:

The pressure bearing capacity of boiler tubes is not a fixed value, but is affected by many factors. First, the material of the tube is one of the key factors that determine the pressure bearing capacity. Tubes of different materials have different yield strengths and tensile strengths, and these performance indicators directly affect the pressure bearing limit of the tube. Secondly, the specifications of the tube (such as wall thickness, outer diameter, etc.) will also affect its pressure bearing capacity. Generally speaking, the thicker the wall, the stronger the pressure bearing capacity. Finally, the use environment (such as temperature, pressure fluctuations, etc.) will also affect the pressure bearing capacity of the boiler tube.

In high-pressure boiler systems, the working pressure of boiler tubes is usually high. Generally speaking, the working pressure of high-pressure boiler tubes can reach more than 6.4Mpa. However, this does not mean that all boiler tubes can withstand such high pressure. In fact, the specific pressure bearing capacity of boiler tubes needs to be comprehensively determined based on factors such as the yield strength, wall thickness and use environment of the pipe.

Application and safety requirements of each pressure level:

1. Low pressure: suitable for small boilers or low-temperature hot water systems. The safety requirements are relatively low, but regular inspection and maintenance are still required to ensure safe operation.
2. Medium pressure: commonly used in industrial boilers and thermal systems. At this level, the material selection, design, installation and maintenance of pipelines and valves must strictly comply with relevant specifications to prevent safety accidents such as leakage and explosion.
3. High pressure: common in high-pressure thermal systems such as large power station boilers. This level has higher requirements for the pressure resistance and sealing performance of the equipment, and it is also necessary to be equipped with a complete safety valve and control system.
4. Ultra-high pressure: Mainly used in special industrial fields, such as petrochemicals. At this level, special design and manufacturing processes, as well as more stringent safety management measures, must be adopted.

Ensure the safe use of boiler tubes:

In order to ensure the safety and stability of boiler tubes during use, the following points need special attention:

1. Choose the right material and specification: According to actual needs and use environment, select the material and specification of boiler tubes with sufficient pressure bearing capacity.
2. The installation of boiler pipes should comply with relevant standards and specifications.
3. Regular inspection and maintenance: Regularly inspect boiler tubes to promptly discover and deal with potential safety hazards, such as corrosion, cracks, etc.
4. Follow manufacturer recommendations: Strictly operate in accordance with the technical specifications and safe working pressure range provided by the boiler tube manufacturer to avoid overload operation.

In short, understanding the pressure bearing capacity of boiler tubes and how to ensure their safe use is crucial to maintaining the stability and safety of industrial boiler systems. In practical applications, we need to consider a variety of factors to ensure that boiler tubes maintain optimal working conditions while bearing appropriate pressure.

Read more: Boiler tube size chart or What are seamless boiler tubes and how are they made?