Required Reinforcement Around Threaded Port - UG-34/37?
Required Reinforcement Around Threaded Port - UG-34/37?
(OP)
Hello all,
So I am trying to figure out how the ASME code applies to a flat plate with a single threaded pipe port in the center. The plate is bolted down, so I am using UG-34 as the basis to calculate the "web thickness" of the plate (disregarding the pipe hole in the plate). Then, after I get that thickness, I want to analyze how the code provides guidelines for the threaded boss reinforcement around the port. I've looked at UG-37, but it isn't clear to me if this section of the code applies to threaded ports inside the flat plate. Can anyone provide guidance as to what code is applicable? Thank you.
So I am trying to figure out how the ASME code applies to a flat plate with a single threaded pipe port in the center. The plate is bolted down, so I am using UG-34 as the basis to calculate the "web thickness" of the plate (disregarding the pipe hole in the plate). Then, after I get that thickness, I want to analyze how the code provides guidelines for the threaded boss reinforcement around the port. I've looked at UG-37, but it isn't clear to me if this section of the code applies to threaded ports inside the flat plate. Can anyone provide guidance as to what code is applicable? Thank you.





RE: Required Reinforcement Around Threaded Port - UG-34/37?
Regards,
Mike
RE: Required Reinforcement Around Threaded Port - UG-34/37?
I've reviewed UG-39, but it appears that the code assumes that the threaded section is welded on the pipe. I'm trying to find an analysis method for determining the height and thickness of the boss assuming it is just part of the milling process to make the flat plate?
RE: Required Reinforcement Around Threaded Port - UG-34/37?
Why can't you treat the boss AS a pipe? I don't think the Code assumes the opening is threaded, or not threaded. Just use appropriate OD, ID at the thread root, height of reinforcing element, limits of reinforcement, etc, etc.
Also see UG-36(c)(3), you may be able to exempt the thing.
Regards,
Mike
RE: Required Reinforcement Around Threaded Port - UG-34/37?
Thanks so much for your help, I believe it is exempt as a result from UG-36c3. Thanks!
RE: Required Reinforcement Around Threaded Port - UG-34/37?
RE: Required Reinforcement Around Threaded Port - UG-34/37?
What section of the code were you referring to that would apply to calculating as a reinforcement for the boss? Is it ug-37?
RE: Required Reinforcement Around Threaded Port - UG-34/37?
There is an alternative code that you can reference and that is ASME Power Code I. When I took my National Board exam, alas, in the 1970's, I had to study sections PG33,36 and 37 dealing with this topic and I am quiet certain that the methods explained in the Fired and Unfired Pressure Vessel Codes are similar from what I remembered when I compared the two codes.
RE: Required Reinforcement Around Threaded Port - UG-34/37?
RE: Required Reinforcement Around Threaded Port - UG-34/37?
RE: Required Reinforcement Around Threaded Port - UG-34/37?