There are significant differences between single-flange limit expansion joints and double-flange limit expansion joints in terms of structure, function, installation convenience, and use scenarios.

Structural differences
      · Single Flange Limit Expansion Joint: Only one piece of convex or flat flange is used as the connecting body, which is connected to the pipe by bolts. This design is compact and suitable for construction sites where space is limited.
      · Double Flange Limit Expansion Joint: It is composed of two flange connections, with flange connections at both ends, and the joints are tightly fixed with the pipeline through high-strength bolts. This design allows for a large installation space requirement and is suitable for applications that require a larger telescopic range.

Functional differences
      · Single Flange Limit Expansion Joint: Due to its compact design and electric welded connection, the stability and tightness of the flange joint are enhanced, and it is suitable for high-pressure, high-temperature or corrosive media environments. In addition, the single-flange construction is more compact in footprint, helping to save space.
      · Double Flange Limit Expansion Joint: Because there are two flange connections, it usually has a larger expansion capacity, which can absorb a wider range of pipeline displacement and deformation, and is suitable for occasions that require a larger expansion range, especially in the case of a large impact and vibration of the pipeline system.

Differences in ease of installation
      · Single-Flange Limit Expansion Joint: The installation is slightly complicated, and the welding operation needs to be carried out on site, and the construction conditions are high, and the power supply, welding personnel qualification and safety measures need to be considered.
      · Double Flange Limit Expansion Joint: Easy to install, no special equipment, can be completed with standard tools, suitable for use when human resources are sufficient, although the installation process is simple, there may be certain limitations in sealing, pressure bearing capacity and long-term stability.