How To Prevent Corrosion in Metal Expansion Joints

Piping systems and HVAC units depend similarly on metal expansion joints. Otherwise known as compensators, these elements help keep piping systems in working order by absorbing movement and mitigating the effects of thermal expansion.

However, like most equipment, metal expansion joints have a service life that can prematurely deteriorate if not taken care of accordingly. As most metal components experience, compensators can suffer from corrosion.

In this article, you’ll discover how to prevent corrosion in metal expansion joints to extend their service life. Continue reading below to learn more!

Store Metal Joints Correctly

Storing metal expansion joints is one of the essential points to consider when combating corrosion.

Avoid keeping metallic compensators on the ground when in storage, as concrete can absorb moisture and expose components to mold and mildew. Instead, consider placing equipment on plastic or rubber chocks to separate them from direct moisture and potential spills.

You’ll notice your metal expansion joints are corroding if you see black, white, and red spots on the surface before transforming into the standard reddish rust appearance.

Install Industrial Thermostats

Corrosion can also occur when equipment sits in areas with high humidity and poor ventilation. To combat this dangerous combination, install industrial thermostats that can monitor and regulate humidity.

Doing so can mitigate the risk of expansion joints succumbing to rust, crumbling, and corrosion-related cracking.

Perform Preventative Maintenance

Lastly, it helps to perform preventative maintenance to ensure equipment remains intact without any long-lasting damage that can affect functionality. Inspect compensators for early signs of corrosion and tensile stress through assessments and keep surfaces clean to prevent dirt and grime accumulation.

It's essential to know how to prevent corrosion in metal expansion joints if aiming to extend your joints’ service life. By performing preventative maintenance and extending their service life, you can save money.