Material: AISI 321
Flanges: Carbon steel
Welding ends: Carbon steel
Axial compensators designed for application in pipelines to compensate axial and lateral movements. Stainless
steel ends and compensators longer than standard are available on request.
Steel compensators are composed of one or several multilayer, corrugated steel bellows and appropriate connections such as flanged, weld-in or other connections. To form the bellow, a couple of adjacent sheet metal layers is shaped into corrugations. A single stainless steel sheet metal piece is e.g. from 0,2 to 0,5 mm thick. This multilayer design of the bellow ensures much higher flexibility than the single layer design with the same overall thickness and height of corrugations – as, for instance, in the case of corrugated steel hoses. Therefore, the corrugated steel hose cannot substitute the compensator – it cannot accommodate comparable deformation with the same flexibility.
The steel compensators are divided according to the type of pipeline displacement into the following types: