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Recent content by davemccombs

  1. davemccombs

    Chill water piping and B31.2

    Thanks bvi. Problem resolved. I was able to justify that this piping installation is catagory D and thus reducing the hydrotesting pressure required to 1.5 times operating pressure.
  2. davemccombs

    Chill water piping and B31.2

    Hello jt. No, I'm not worried about the welds. I have qualified a welder on the procedure and we're performing 10% x-ray, so we're turning out a great product for the client. I guess my real issue is with the hydro-test requirments. The weakest point in the system is <100psi. I will be...
  3. davemccombs

    Chill water piping and B31.2

    I am currently fabricating 4" sch 40 carbon steel pipe for an HVAC unit to be located off-shore. My client is holding me to B31.3 and APR RP-14E on fitup,welding, installation and testing since this will be installed off-shore in a refinery/production environment. This piping will have no more...

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