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