POST INSTALLATION INSPECTION PRIOR TO SYSTEM PRESSURE TEST

A careful inspection of the entire piping system shall be made with particular emphasis on the following.

• Are the anchors, guides and supports installed in accordance with the system drawings?

• Is the proper expansion joint in the proper location?

• Are the expansion joint flow direction and positioning correct?

• Have all the expansion joint shipping devices been removed?

• Are all guides, pipe supports and the expansion joints free to permit pipe movement?

• If the system has been designed for a gas, and is to be tested with water, have provisions been made for proper support of the additional dead weight load on the piping and expansion joint? Some water may remain in the bellows convolutions after the test. If this is detrimental to the bellows or system operation, means shall be provided to remove such water.

• Has any expansion joint been damaged during handling and installation?

• Is any expansion joint misaligned? This can be determined by measuring the expansion joints' overall length, inspection of the convolution geometry, and checking clearances at critical points on the expansion joint and at other points in the system.

• Are the bellows and other movable portions of expansion joint free of foreign material?

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