Lap joint flanges are a common way of connecting pipes, which are usually used in piping systems that require frequent disassembly and repairs. Below we will detail in which cases it is used.

Piping systems that require frequent disassembly and repair: Lap joint flanges are a pipe connection that is easy to disassemble and repair. When it is necessary to replace a certain part of the piping system, only the lap joint flanges need to be removed instead of the entire piping system. This type of connection can greatly reduce the time and cost of repair and replacement parts.

Slip-on flanges are also used where flexibility is required in the piping system. Loose backing flanges allow the piping system to move and expand without stressing the weld or the flange itself.

Another situation where lap flanges are used is in systems where the pipe material is different from the flange material. The stub ends can be made from the same material as the pipe, while the backing flange can be made from a different material that is more suitable for the application.

Need to adjust the direction and position of the piping system: Lap joint flanges can adjust the direction and position of the piping system to meet different piping needs. This connection method can provide better flexibility and adjustability in the pipeline system, so as to ensure the normal operation of the pipeline system.

Lap joint flanges are suitable for high-temperature and high-pressure environments because they can withstand the effects of high temperature and pressure. This connection method can provide better sealing and stability in the pipeline system, so as to ensure the safe operation of the pipeline system.

Lap flanges are also commonly used in low-pressure applications such as water and air systems. They are not recommended for high-pressure or high-temperature applications as a loose backing flange can be a safety hazard if displaced.

In a word, lap joint flanges are a very practical way of pipe connection, which can provide better sealing, stability, compatibility, flexibility, and adjustability in different pipe systems. Therefore, lap joint flanges are a versatile and practical solution in situations where frequent disassembly and repairs are required, high temperature and high-pressure environments, pipe connections of different materials, and where adjustment of the direction and position of the piping system is required.

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