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  1. rambabu0608

    Vent hole for carbon steel lined pipes

    Dear Littleinch, Thank you for the information and i missed in my question to mention that the vent hole is drilled by Pipeline contractor where as our's is lining activity. Sometimes It happens due to oversight by them or not giving importance on requirements. Your technical justification is...
  2. rambabu0608

    Vent hole for carbon steel lined pipes

    Dear All, According to the client specifications of Thermoplastic Line Pipes, The vent hole size for carbons steel Pipe shall not be more than 3.0 mm Max. Basically A vent in a lined pipeline system is a hole that is drilled through the steel pipe to allow passage of any permeated gases or...
  3. rambabu0608

    UT Can be Performed Successfully on HDPE Butt-Fusion Joints?

    Hi! I would like to know the importance of NDE (UT & RT) tests on HDPE Butt Fusion Joints for HDPE Pipes and fittings. Are the test results are fruitful? Is it necessary to check the all joints with NDE testing when joining method followed based on standard parameters (like fusion material...
  4. rambabu0608

    UT Can be Performed Successfully on HDPE Butt-Fusion Joints?

    Hi! I would like to know the importance of NDE (UT & RT) tests on HDPE Butt Fusion Joints for HDPE Pipes and fittings. Are the test results are fruitful? Is it necessary to check the all joints with NDE testing when joining method followed based on standard parameters (like fusion material...
  5. rambabu0608

    Circumferential Residual Stresses of HDPE Pipe

    Dear Sirs, We would like to know what should be the circumferential residual stress value of HDPE Pipes? How important are they? How to measure these stress for a given HDPE pipe and How this value will affect on HDPE pipe during manufacturing if there is a variation in the value? Thanks in...
  6. rambabu0608

    Shrinkage of HDPE Pipes Outer Diameter

    Dear Forum Members, We would like to hear from the forum experts that, Is HDPE pipe outer diameter (OD) will get shrink after manufacture with time and temperature? If so, what could be the problem? We have received huge quantity of various sizes of pipes (OD 110 - 400 mm, SDR 36,) from a...

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