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  1. Nalsur

    Underground piping inspection

    Hi Dhurjati Sen, thanks for response. No, personally I am not aware about Perason Survey. however, after googleing I understood (if correct) that the users should ensure that the pipelines are backfilled and the surrounding soil is compact and contains some moisture. in my case I am traying to...
  2. Nalsur

    Underground piping inspection

    Dear LittleInch, thanks for response. How big pipe? 20" Wall thickness? 9.5mm Fluid inside? residue how long? aprox. 10meter Access to inside or outside of pipe? outside ( pipe is in service Temperature 95C) thanks,
  3. Nalsur

    Underground piping inspection

    Thank you SnTMan, apart UT pigging tool, is there any option to check the wall thickness, like long range UT but which will give exact measurement of remaining wall thickness? Thanks.
  4. Nalsur

    Underground piping inspection

    Hello, Could you please advise if there is NDT tool which can detect wall loss in underground pipe ( material is CS and in service). Pipe is inside sleeve which located under transport road. many thanks,
  5. Nalsur

    ITP

    |Thank you Shane for clarification.
  6. Nalsur

    ITP

    Hello, can you help me to understand, who should prepare ITP for weld repairing jobs (pressure equipment)in existing operation unit. Owner Engineer or Contractor? what is the risk if owner prepare the ITP? is there any referencing documents? thanks you so much.

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