Bellows compensator is also known as expansion joint or expansion bend. The mail body is the bellows (a flexible element),and it is also composed with some accessories like side tubes, brackets, flanges and conduit tube etc.

It is a kind of compensation components. By using the bellows affective extensional deformation, to absorb pipe, ducts and containers size expansion and contraction which is caused by heat and cold, or to compensate the pipelines, conduits and containers axial, lateral and angular displacement. It is also widely used for industry noise reducing and shock absorption.