How to Maintain Metallic Expansion Joints

Posted: February 15, 2024 | Category: Expansion Joints

Metallic expansion joints are crucial components in industrial piping systems, accommodating thermal expansion, vibrations, and other movements to prevent damage to the piping and equipment. At Flextech Industries, we know that proper maintenance is key to ensuring their longevity and optimal performance. That is why we have put together some information outlining how to maintain metallic expansion joints properly.

1. Regular Inspection

The best way to improve maintenance is through regular inspections. Performing regular inspections will help identify potential issues in advance, allowing you to act accordingly before something breaks down. There are two types of inspection that can be performed on metallic expansion joints: visual and operational.

Visual Inspection

Check for signs of wear, corrosion, or mechanical damage. Look for any deformation, cracks, or leaks around the expansion joint.

Operational Inspection

Monitor the performance during operation. Listen for unusual noises or vibrations that could indicate a problem.

Keep detailed records of inspections, maintenance activities, and repairs. You should also have an expansion joint safety inspection checklist. This documentation can help you identify trends, predict potential failures, and plan for replacements or upgrades.

2. Cleaning

Proper maintenance is directly correlated to the cleanliness of internal and external surfaces. You will notice potential hazards more easily if they are unobscured from dirt on the piping.

Surface Cleaning

Keep the surface of the expansion joint clean from dirt, debris, and corrosive substances to prevent external corrosion.

Internal Cleaning

Depending on the application and medium flowing through the expansion joint, ensure the interior is cleaned periodically to prevent clogging or internal corrosion.

3. Lubrication

If your metal expansion joint includes moving parts, such as hinges or pivots, ensure these are properly lubricated to prevent wear and tear.

4. Protection

Use appropriate protective coatings or select materials resistant to the environment in which the expansion joint operates to minimize corrosion risk.

Temperature and Pressure

Ensure the expansion joint is not subjected to temperatures and pressures beyond its design specifications.

6. Replacement and Repair

Keep critical spare parts available for quick replacement to minimize downtime. For significant repairs or replacements, consult with professionals at Flextech Industries. Our team members have the expertise to ensure that the expansion joint is properly fixed and meets operational standards.

If you would like to learn more about how to properly maintain the metallic expansion joints in your facility, we can help. Get in touch with our team by calling our toll-free number: 1-800-830-FLEX.