【Haichuan Pipeline Construction】Will the bolts of the pipelines be replaced during maintenance? ? How to determine it?

2021-11-01View Original

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This post was last edited by Desert Fish on 2021-11-10 at 14:13. Will the maintenance team replace the bolts? ?

Reply #22021-11-09

Those that are visibly rusted must be replaced if they have been bitten through!

Reply #32021-11-10

Don’t bolts suffer from fatigue over time as they are used?

Reply #42021-11-10

Bolts used in high-temperature and high-pressure environments must undergo testing and verification

Reply #52021-11-10

Is it inspected every time it is maintained? What instruments and standards are used for the inspection?

Reply #62021-11-11

This is not a standard inspection. Generally, perform PT hardness testing and conduct a mechanical analysis on one sample.

Reply #72021-11-20

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【Haichuan Pipeline Construction】Will the bolts of the pipelines be replaced during maintenance? ? How to determine it?

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