The working principle of corrugated expansion joint is mainly based on the elastic deformation characteristics of its main body-corrugated pipe. When the pipe system is heated or cold, the pipe can develop displacement and deformation due to thermal expansion and contraction effects. Corrugated expansion joints absorb these displacements and deformations through the elastic deformation of the bellows, thus protecting the piping system from damage.

Specifically, elastic elongation of the bellows occurs when the pipe expands under heat to absorb the thermal elongation of the pipe; When the pipeline shrinks under cold, the bellows will return to its original state, maintaining the continuity and stability of the pipeline. This elastic deformation ability makes the corrugated expansion joint effectively cope with the thermal expansion and contraction problems of pipeline system.

In addition, the corrugated expansion joint also has the function of absorbing pipe vibration, reducing noise, and sealing and connecting pipes. Through its unique structural design, the corrugated expansion joint can absorb the pipe vibration energy, reduce the influence of pipe vibration on the system, and maintain good sealing and connection strength.

Generally speaking, the working principle of corrugated expansion joint is to compensate the thermal expansion, contraction and vibration of the pipeline by utilizing the elastic deformation characteristics of the bellows, thus ensuring the safe and stable operation of the pipeline system.