Metallic bellows expansion joint

Compensators, also commonly referred to as expansion joints or bellows, are composed of a corrugated pipe (an elastic element) that forms the main working body, along with accessories such as end pipes, brackets, flanges, and conduits. They are a type of compensating element that utilizes the excellent expansion and contraction deformation of the corrugated pipe to absorb size changes in pipelines, conduits, and vessels due to thermal expansion and contraction, or to compensate for the axial, lateral, and angular displacements of pipelines, conduits, and vessels. They can also be used for noise reduction and vibration control. Widely used in modern industry, in heating systems, compensators are needed to prevent pipeline deformation or damage caused by thermal expansion or temperature stress when heating pipes. By compensating for the thermal expansion of the pipeline, the stress on the pipe walls and the forces acting on valves or bracket structures are reduced.