Use parameters: maximum pressure :0.1-0 .25 Mpa maximum temperature: -196-450 ℃ diameter range: DN50?-2000mm Applicable fluid: hot and cold media, all kinds of oil, gas structural features: corrugated compensators used in petrochemical, gas , electricity, heating, textile, food and ship industry, a pipeline system thermal displacement compensation or the shock of the new members. Its connection into the flange connection and welding two. The buried pipe compensator general welded. Metal bellows compensator bellows (an elastic element) constituting the working body and the end pipe, brackets, flanges, such as a catheter attachment. Is a form of compensation components. Its working body bellows stretching deformation to absorb the dimensional change of the pipelines, conduits, containers, etc. generated by the thermal expansion and contraction, and other reasons, or compensate for the axial direction of the pipes, conduits, containers, etc., lateral and angular displacement. Can also be used for noise damping.