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Hi all, I am confused by ULT-27 about the determination of shell minimum thickness. Per ULT-27(a) and ULT-27(b), it sounds that: Design pressure = MAWP+Loadings(per UG-22) for instance, Before the shell norminal thickness selected, how can I know MAWP? As far as I know it: MAWP may be equal...

what are the pressure vessel codes used in Mexico? Thanks in advance.

Hi all, Is there anyone knowing the European materials vs ASTM material such as A182-316L corresponding European SS material? Thanks in advance.

120" ID seamless SA516-70 pipe is available? Oo.......

Hi All, I would like to confirm something in U stamp requirement to a small pressure vessel. The design pressure is 125 psig The shell will be 12 inches pipe sch40 Ends will be cap in sch 40. Length of the shell will be 4 feet. Per my understanding to U1(c)(2)(i) of ASME VIII-1, it is within...

HI all, I run into a problem on rupture disc set pressure for a LIN storage tank. The design pressure of the LIN storage tank is P=2 psig I assumed MAWP (Maximum Allowable Working Pressure) equal to design pressure. MAWP=2.0 psig Disc rupture pressure tolerance ?P= ±50 mbar (±0.725 psi)...

Hi all, I am wondering if ASME B31.5 threaded joints are allowable in natrual gas piping. Thanks in advance

Hi all, When I use Appendix 2 to verify ANSI flange, why the calculated flange thickness is not equal to ANSI standard thickness? In other words, if I design a non-standard flange, can I use appendix 2 to design it? Thanks in advance.

Hi all, A existing vessel has a pipe nozzle connection. Now, we want it to be changed to flange connection, cutting the pipe and adding a couple of flanges. For this change, do I need a R stamp for the existing vessel and re-submit calculation and vessel drawing with added flange to NB...

Hi all, Is there anybody knowing the Building Code in Tennessee State? I need to creat a Site Data Sheet for pressure vessel design, such as th data Minimum Snow Load, Maximum Wind Speed and Average Annual Rainfall. Any suggestion and information will be greatly appreciated. Thanks in advance.

I am wondering if all states in US require NB# registration for all ASME vessels. Is there any states not requiring the NB# registration?

Hi all, I ran into a problem to a cryogenic storage tank which consists of internal vessel and external vessel. The internal vessel has internal pressure 150 psig and external pressure -15 psig due to vacuum between internal and external vessels. Per UG-21 of ASME VIII-1 A06, the design...