Hello everyone, a bit of a general question:
Let's say there's an existing above ground pipeline with one small section to be modified. Upon review there is concern that it currently does not meet B31.4 Code, occasional stresses are too high, inadequate supporting, etc. But it's been there...
Hello everyone,
Wondered if anyone had any experience with this:
B31.4 2016 Para. 434.8.5.3 states that above a hoop stress of 20% of yield, a minimum of 10% of girth welds "completed each day" are to be inspected.
What does this mean for large pipes where one girth weld takes most or all of...
Hello,
I have an API-650 tank, with two 24" nozzles. One nozzle has internal piping going back to the center of the tank, the other has none. The internal piping would be supported about every 20' with goalpost type supports (no hold-downs). I am trying to determine what effect the internal...
We have some existing A105N, B16.5 flanges that have not been impact tested. New upset conditions would be -48C at nearly atmospheric pressure for 15-30 minutes. Most of the time it will be at ambient. We have done pipe stress analysis and checked flange leakage, both are fine based on...
