Bellows and flexible tubing are used to absorb piping heat expansion and vibration, so they will break due to metal fatigue if used beyond their limit.

Normally this would require replacement with a new piece, however many customers say they only wish to replace or repair the bellows portion in order to save on costs.
(Flexible tubing almost always cracks at both ends so it is usually cut short for repair)

Compared to purchasing a new product, a great deal of work and costs are required, however we can still carry out repairs for requesting customers.