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  1. struggling

    Terminology question - construction related

    From the context of your question, NIC almost has to mean "Not Included in the Contract."
  2. struggling

    Root cracks fillet welds

    Sounds like without grinding them, you may have to RT them. How many are you talking about? This is going to be expensive. We saw some cracking in the base metal for 5/16" welds. It was a combination of too much heat with no post-weld heat treatment and high vibration causing base metal...
  3. struggling

    P44 PQR / WPS Qualification

    Sounds like you need a welding engineer and a metallurgist. If it's being used for lethal service, I don't think either will give a meaningful answer in an e-mail. I know that when we have special welding tasks which doesn't fit an established WPS, we have to prepare a special checklist to...
  4. struggling

    vent and drain valves

    I am involved in an effort to "re-draw" all the P&ID's at the plant. On the drawing, a valve symbol is "blacked in" to represent a closed valve. Several questions have been asked concerning the normal alignment of vents and drains. We have identified a significant number...
  5. struggling

    Pipe from ASTM A105

    that was probably a typo.
  6. struggling

    Leakage Question

    If all your valves leak, you should consider either a different valve design or double isolation. I agree with svanels. From a maintenance safety standpoint, unless you can maintain some kind of continuous purge, there is no acceptable leakage for gas.

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