The main reasons for the damage of bellow expansion joints are corrosion and water hammer.

The primary causes of damage to Expansion Bellows include corrosion and water hammer. According to multiple pieces of evidence, corrosion and water hammer are two major factors leading to the damage of bellows compensators.

Corrosion is one of the significant reasons for the damage to bellow exansion joint. It can be caused by various factors, including internal media and external environmental conditions. For instance, when the internal media does not meet standard requirements, corrosive substances in the external environment can accelerate the damage to bellows compensators. In particular, stainless steel bellows compensators are prone to pitting corrosion or intergranular corrosion in steam containing Cl ions. Especially pitting or intergranular corrosion resulting from improper water quality treatment can weaken the structural integrity of the compensator, ultimately leading to its damage. Water hammer is also an important cause of damage to bellows compensators. Water hammer refers to the immense pressure generated by water flow shock waves on the piping system. If this pressure is not released in a timely manner, it can cause severe physical damage to bellows compensators. For example, water hammer effects can lead to bellows deformation or even cracking, seriously endangering the operation of the pipe network.

The main reasons for the damage to Bellows Type Expansion Joint is corrosion and water hammer, and the combined action of these two factors leads to the failure and damage of bellows compensators. Additionally, factors such as design or operational errors, installation deflection, anchor block slippage, and unrelieved internal stress in large-diameter spiral pipelines may also cause damage to bellows compensators. When maintaining and using Corrugated Compensator, special attention should be paid to these potential risk factors, and appropriate preventive measures should be taken.