The importance of correctly selecting corrugated expansion joints is straightforward, as it can compensate for the axial, lateral, or angular displacement of the medium inside the pipeline due to temperature changes caused by thermal expansion and contraction, thereby ensuring the normal and safe operation of the pipeline. The correct selection of corrugated expansion joints is indirectly important in avoiding unnecessary cost budget waste in pipeline engineering.

Therefore, before selecting the model for the corrugated expansion joint, it is necessary to ensure that accurate technical parameters are provided, such as nominal diameter, working pressure, medium, medium temperature, connection method, installation form, and compensation amount. When selecting the accurate model of corrugated expansion joint, the material and thickness of the corrugated joint, the material and thickness of the guide tube, and the number of corrugated joints will also be determined to ensure the correct quotation of the corrugated expansion joint.