INSPECTION DURING AND IMMEDIATELY AFTER SYSTEM PRESSURE TESTS

WARNING: EXTREME CARE MUST BE EXERCISED WHILE INSPECTING ANY PRESSURIZED SYSTEM OR COMPONENT.

A visual inspection of the system shall include checking for the following.

• Evidence of leakage or loss of pressure.

• Distortion or yielding of anchors, expansion joint hardware, the bellows and other piping components.

• Any unanticipated movement of the piping due to pressure.Evidence of instability (squirm) in the bellows.

• The guides, expansion joints and other moveable parts of the system shall be inspected for evidence of binding.

• Any evidence of abnormality or damage shall be reviewed and evaluated by competent design authority.

Design Specification and Expansion Joint Design | Installation | Post Installation Inspection Prior to System Pressure Test | Inspection During and Immediately after System Pressure Tests| Periodic Inservice Inspection | System Operation | Typical Causes of Expansion Joint Failures