Firstly, I must apologize for asking multiple questions. If anyone has the time to respond, I would be most grateful!
Can someone explain why the correction factor “F” in UG -37 is not mandatory?
Also, if one inserts, say, a hill side nozzle (tangentially& integrally) into a cylindrical shell...
A pressure vessel MDMT is -50 degrees F . I am using curve (B) material and I am able to exempt charpy impacts by utilizing UCS 66 (b) (coincident Ratio) for head, shell, and nozzles.
Reading UCS 67 (a) (1), it appears I do not have to qualify a WPS since the base metal is not required to be...
Can someone clarify UG 81 (f)(2) .
Is it requiring all test plates regardless whether the actual vessel needs heat treatment to be heat treated prior to charpy. Or, is it saying ( which is my interpretation) that if the manufacturer determines that the vessel needs heat treatment, then the test...
Can anyone tell why I can't use Appendix IX of ASME VIII-I to establish the thickness for side bars of a bustle style configuration similar to a Type-I jacket.
Also, can I use the weld sizing (Z) for the bustle to bar attachment and (Y) for bar to shell proper.Is the use of a single...
Hello there,
I see that Compress provides an option for an efficiency for a split repad, Section VIII-I construction.
Since A^5 has no efficiency specified and interpretation file # BC90-404 asks "should the eff in A^1 be 70% if no RT is performed on the split repad" Answer "NO"...
Can one use a welded expansion joint per ASME VIII-I UG 11 (c), or does one have to use APPX 26.
Also, can one use Fig, 26-13(C) for the attachment of a billow to collar for lethal service.
Opinions are great, but please reference code paragraphs when responding.
Thanks!!!
I was looking through ASME VIII-1 and was amazed at the weld sizing for a pad flange attachment.
If one attachs a pad flange 1" thick to a flat head 1.5 " thick, then the resulting throat dimension is based on a t(min) of .75". Therefore, one would end up with a fillet leg dimension on the...
Hello,
I recently reviewed an MTR for 2.5" SA 516 gr 70 Material. Fully expecting to see a statement referring to Normalized at x temp for y time. I was surprised to read Austenized at x temp for y time.
Can someone explain the difference. In the mean time, I will seek out SA20 base...
Hello,
Say one designs a heat exchanger with the service side made of ASME code material, ending at the shell barrel flanges and where the process side is made of non code materials. The Non coded process side is mechanically held in place by tie rods extending from the code body flange to...
