The metal bellows expansion joint is considered to be the elongation or compression of the pipe system on its longitudinal axis, which means that the total length of the expansion joint will extend or compress during the absorption  movement. An axial expansion joint designed to absorb large motions can contain one, two or more bellows in one unit, and can also achieve greater motion by pretensioning or by installing multiple expansion joints on the pipe section. .

Metal bellows expansion joints are used in a variety of applications and can be used over a range of temperature requirements, pressures and sizes.

The corrugated compensator uses the telescopic and offset of its main elastic component bellows to compensate the displacement of the pipeline, with large compensation and good elasticity. The product is suitable for conveying seawater, fresh water, hot and cold water, drinking water, domestic sewage, Crude oil, fuel oil, lubricating oil, refined oil, air, gas and other media. 

The construction of a large-scale seawater treatment plant in Hanoi, Vietnam, will cause huge noise and vibration during the pipeline transportation of seawater, and a certain displacement will occur. The corrugated compensator absorbs the axial, lateral and angular changes of the pipeline to facilitate the valve piping. Installation and disassembly, absorb equipment vibration, reduce the impact of equipment vibration on the pipeline.