Externally pressurized expansion joints are a type of axial compensator and serve as special expansion elements designed to absorb thermal expansions along the axis of the pipeline. In this type of compensator, the bellows are supported by an outer shell against internal pressure, enabling safe performance even in higher-pressure systems.

Piping systems are divided into different expansion zones according to engineering principles and are isolated from one another through fixed points. Thanks to this structure, the expansion movement occurring in a specific zone is absorbed in a controlled manner by an externally pressurized axial expansion joint positioned specifically for that zone.

The external pressurization 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, ensures a longer service life, and guarantees high-performance operation of the compensator.

This product group is particularly preferred for safe use in high-pressure and long-distance pipeline systems.