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  1. amats42

    API 650 Atmospheric Tank - Shell Nozzle Pipe vs. Plate

    Thank you, all. I agree that the code does not require RT on rolled plate and perhaps an inquiry is the only route. I figured I would ask to see if anyone had experience or other sources that might discuss. There was a previous inquiry that confirmed 5L pipe is not allowed, but no answer as to...
  2. amats42

    API 650 Atmospheric Tank - Shell Nozzle Pipe vs. Plate

    Thank you for the response, Dhurjati Sen. Looking through API 650 I do not see a requirement for 100% RT on the seam. I agree that it would be wise to RT, but the vendor is stating the NDE will be per code. I am under the impression that the shell nozzle should be fabricated in the same...
  3. amats42

    API 650 Atmospheric Tank - Shell Nozzle Pipe vs. Plate

    I was wondering if anyone knew the reason behind API 650 e12 Paragraph 4.5.2 which prohibits the use welded pipe for shell nozzles (though it does allow ASTM A671 electric-fusion-welded). I recently had a tank vendor attempt to use API 5L pipe for a large bore pipe nozzle (since they specified...
  4. amats42

    Fitting Weld Resting on Free Pipe Support

    Thank you all for the detailed replies! Definitely more than I found on the net and in my references. Inspection is a really great point and while the foundations are installed, the pipe supports are not. I will speak with the contractor to see if installation on a temporary support is...
  5. amats42

    Fitting Weld Resting on Free Pipe Support

    @Dhurjati, I was trying to think of reasons why it would be against best practices (and my gut says that it is), and I could only come up with possible weld damage if it slips on and off the support or if the support now had a point load on the weld (and the pipe would be slightly higher here...
  6. amats42

    Fitting Weld Resting on Free Pipe Support

    Apologies--details float in my head and I forget the information needs to be stated. [ol 1] ASME B31.3 Ambient temperature, assumed 50°F to 110°F The support is just a v-stop--a steal beam anchored to a deep concrete foundation with a 1/4" teflon spacer on it. There are no shoes, saddles...
  7. amats42

    Fitting Weld Resting on Free Pipe Support

    I searched through the forums as well as the codes and other online forums and I don't see a definitive answer on this. Is there a code that prohibits a fitting weld (circumferential weld) from resting on a free pipe support? We have 6" and 12" coated carbon steel pipes that rest on free...

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