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Field Services

Inspection Checklist — Expansion Joints

check for signs of leakage or a loss of pressure

inspect for any distortion or yielding of anchors, hardware, bellows, and piping connection points

observe for any unanticipated movement of piping due to pressure

inspect for evidence of instability (squirm), distortion or damage in the bellows convolutions

check the expansion joint, the guides, and other moveable parts of the system for evidence of binding

check for misalignment of the expansion joint unit

check for vibration damage