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Hello Friends, I have a question on a jacketed ASME VIII Div.1 vessel. In my design the Jacket closure (0.375" thk) is welded directly to the hub of a WN flange. Is there any section in the code that prohibits such weld? The weld looks vey similar to Fig 9-5 [i-1(a)]. Attached is a drawing for...

Hello Friends, I have a question on a jacketed ASME VIII Div.1 vessel. In my design the Jacket closure (0.375" thk) is welded directly to the hub of a WN flange. Is there any section in the code that prohibits such weld? The weld looks vey similar to Fig 9-5 [i-1(a)]. Attached is a drawing for...

B564 Gr. N02200 is a listed flange material in ASME B16.5 under Table 2-3.2 but mat'l is not listed in Section VIII, TABLE UNF-23.3. Can I still use this flange for ASME VIII Div.1 COnstruction? Is there any code case or interpritation that would allow me to do so? Thanks for the help.

Thank you Guys. DSB123, can you give me the some reference for "reinforcing limit on pad being 1.5*pipe/Vessel thickness". Thanks,

As per ASME Scetion I/ Section VIII, is there any limit (Min or Maximum) on the thickness of reinforcing pads one can use? Thanks,

I am sorry racookpe1978, I guess you got me wrong. what I wanted to know is if there is any code limit on maximum raised face a flange can have. B16.5 gives standard raised face dimensions, (1/16" for less than or equal to class 300 and 1/4" for anything more than class 400) "unless otherwise...

Either the standard raised face flanges are 1/16" or 1/8" raised face. But is there some standard set by ASME on the maximum raise face a flange can have? I am designing a flange per Section VIII Appendix 2. Thanks

Is there anything similar to PFT-25.2 in Section VIII Div.I? I know UG-49 talks about the maximum “distance from the center of the outermost stays to the inside of the supporting flange (for flanged stayed plate) shall not be greater than the pitch of the stays plus the inside radius of the...

Per Section VIII UW-2 (d)(2), PWHT is required for P-No 1 material if welded joint exceeds 5/8” and is subjected to direct firing. I am designing a furnace with a burner on one end. Will the furnace be considered as directly fired? My weld is located on the other end of the furnace. Shell...

I am designing a Div I vessel to be installed in California. Design Pressure: 50 psig. Our Customer don’t want to get it Code Stamped or National Board Registered… Can we do that? Thanks