The flow medium containing the abrasive particles such as Catalyst, Ores, Slurry etc., should clearly be defined in the specification.

The abrasive nature of flow medium will erode the Flow Liner and Bellows which results in failure.

A higher thickness sleeve in hardened material will be a solution in applications where the flow medium has abrasive particles.

In some cases, a special abrasion resistant lining of inside Expansion Joint will be considered to come out this problem.