Axial Internal Pressure Corrugated Expansion Joints are designed to absorb axial thermal expansion and contraction in piping systems while operating under internal pressure conditions.
In this design, the bellows are subjected to internal pressure, which generates axial thrust that must be properly accommodated by anchors and guides in the piping system. These expansion joints are among the most commonly used types in industrial piping due to their simple structure and effective axial compensation capability.
They are widely applied in power plants, petrochemical systems, and general industrial pipelines.