Externally pressurized expansion joints are a type of axial expansion joint designed to absorb thermal expansion in pipelines along the axial direction. In these types of joints, the bellows are supported by an external casing against internal pressure, ensuring safe performance even in high-pressure systems.

Piping systems are divided into different expansion zones in accordance with engineering principles and isolated from each other through fixed points. Thanks to this structure, the expansion movement occurring in a specific zone is absorbed in a controlled manner solely by the externally pressurized axial expansion joint placed in that zone.

The externally pressurized design allows pressure to be applied to the bellows through a protective casing rather than directly from the external environment. This reduces the risk of buckling on the bellows, extends service life, and ensures high-performance operation of the expansion joint.

This product group is especially preferred for safe use in high-pressure and long pipeline applications.