Metallic - Standard

Axial movement is taken into account as an extension or compression of the pipe system in its longitudinal axis, meaning that within the process of absorbing the movements, the length of the expansion joint will either extend or compress.

Axial expansion joints which are designed to absorb the large movements, can contain single, dual or several bellows in one unit, and bigger movements also can be achieved by pre-tensioning or by installing several expansion joints on the pipe section. Considering the nominal diameter and length, axial expansion joints have the flexibility to absorb the minor lateral and angular deflections and installation tolerances. However, we recommend the utilisation should be limited to axial expansion joints main function, otherwise its service life is also negatively impaired.

Axial movement is shown as AXIAL and stated in mm. Compression and extension are indicated as negative (-) and positive (+).

Additionally, axial expansion joints are used in:

Technical Data

These expansion joints are designed to take up axial movements in a piping system. The advantage of axial expansion joints is the fact that they take up relatively little space and no directional changes in the piping are required. When installing axial expansion joints, proper fix points and guidance are required.