Expansion Joint Failure
Expansion joint failure can occur for various reason, but experience shows that failure falls into several distinct categories. This list includes, but is not limited to: shipping and handling damage, improper installation/insufficient protection, during/after installation, improper anchoring, guiding, and supporting of the system, anchor failure in service, corrosion, system over-pressure, excessive bellows deflection, torsion, bellows erosion, and particulate matter in bellows convolutions restricting proper movement.
There are various actions that you can take to prevent and minimize expansion joint failure. During installation, prevent any damage to the bellows by carefully following the instructions furnished by the manufacturer. After installation, carefully inspect the entire piping system to see if any damage occurred during installation, if the expansion joint is in the proper location, and if the expansion joint flow direction and positioning is correct. Also, periodically inspect the expansion joint throughout the operating life of the system in order to check for external corrosion, loosening of threaded fasteners and deterioration of anchors, guides, and other hardware.
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