Views: 11 Author: Site Editor Publish Time: 2018-10-15 Origin: Site
Bellows Expansion Joint 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:
u Evidence of leakage or loss of pressure.
u Distortion or yielding of anchors,expansion joint hardware,the bellows and other piping components.
u Any unanticipated movement of the piping due to pressure.
u Evidence of instability(squirm) in the bellows.
u The guides,expansion joints and other moveable parts of the system shall be inspected for evidence of binding.
u Any evidence of abnormality or damage shall be reviewed and evaluated by competent design authority.
