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  1. pipe76

    Pup pieces at both end of a valve to be replaced

    I basically need to know what the length has to be for two pup pieces, which will be welded at both end of valve. The diameter of the pipe is 32” (774 mm) diameter and 19mm wall thickness. I have been looking at the codes (ASME B31.3, B31.8, B31.4, etc), but I have found nothing. I will...
  2. pipe76

    Buried pipeline

    Dear All, I would really appreciate if someone could explain to me the above situation. If I had a flexible pipe buried to a depth of 1.5m in soil beneath 5m of water, how would I calculate the total stress pore water pressure and effective stress at the top of the pipe, assuming the soil is...
  3. pipe76

    Pig trap

    Hello, I am working with the B31.8. Could you tell me where I can find the information. Thanks.
  4. pipe76

    Plastic pipe test

    Hello, I have been reading about plastic pipes for piping systems or pipeline but I am not sure about the test I have to carry out. So far I know there are two, the simple mechanical tensile test and the hydrostatic test; however I would like to know if someone could help to answer these couple...
  5. pipe76

    Pig trap

    Hello, I am looking for information about the stresses of the pipe assocaited with a pig trap. I would also like to know how to calculate these stresses and the standards or code in which they are based on. Thanks
  6. pipe76

    I am in the process of testing a ne

    Hello, I have been reading about plastic pipe and I have to admit to be confused. I would like to know if someone can help me to answer these couple of question. 1.- What does test qualify fiber glass piping for long time service for oil and field fluids? 2.- What additional testing would be...

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