Custom flexible expansion joint rubber bellows hose

An expansion joint rubber bellows profile can accommodate defined movement between connected sections when the complete joint is designed for that duty. The folded body should be selected around the required extension, compression and offset. The term expansion joint does not establish a universal pressure capacity or make the rubber responsible for supporting surrounding pipework.

Check the end connections and the available space at every intended position. The folds need room to collect without being trapped, while extension should not pull the attachments beyond their planned relationship. Material selection must suit any contained medium as well as the external environment.

Evaluate the complete system, including its supports and restraints, for the required service. During assembly, preserve alignment and avoid twisting the bellows to make connections meet. Maintenance should include the fold roots and end transitions, where local rubbing or a shifted support may first become visible. Restore the intended system geometry rather than using a longer or softer replacement to absorb an unresolved pipe alignment problem.

Material options

Rubber compound options, customized alongside the profile and contact conditions.

Hardness selection

Solid rubber options: 30–90 Shore A. The folded body should be selected around the required extension, compression and offset.

Custom geometry

Check the end connections and the available space at every intended position.

Fit evaluation

Evaluate the complete system, including its supports and restraints, for the required service.

Color & OEM

Custom colors; identification clear of folds and end connections.

Photos illustrate structure or material appearance only. An expansion joint rubber bellows profile can accommodate defined movement between connected sections when the complete joint is designed for that duty. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.