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Thanks bcd, However, even if leaks can be tolerated, my customer will not accept any unless I prove the actual leak rate is acceptable. I'm looking for a reference standard quantifying acceptable leak rated during normal operation over extended period of time, or at least stating that some...

Hello, We recently installed a piping network in which there are several gate valves. All gate valves are socket welded, 1500#, SA-105, metal seats, less than 2'. Fabricated and tester as per ASME B16.34 @ API-598. Operating conditions: 1500psi@520F A few valves have shown some leaks during...

By the way I'm using ASME Section VIII division 2 2010 edition because it was the applicable year when vessel was fabricated. After reading 5.6 and table 5.6 once again, there might be another way to classify this load. Shell on nozzle stress may be considered as a discontinuity stress.

Thanks everyone for your help I completed a few elastic FEA analyses on my double fillet welded nozzle model , starting with the P + L condition. Results indicated that my maximum stress is in the nozzle wall, next to the inner fillet weld, in the shell longitudinal axis. Stresses are much...

TG4, Thanks for your article about using FEA to satisfy U-2(g) for a Division 1 vessel. One point you indicated in this article is that "The allowable stress for all product forms except bolting needs to be from Section II, Part D, Table 1 and Table 1A (i.e. the allowable stress for Section...

Hello fegenbush. Thanks for your reply. Even if there would be workarounds for solving this problem by other means, I would like to take this opportunity to know if my understanding of ASME section VIII division 2 linear analysis is correct. It is a problematic for my own company, with no major...

Hi, I'm a mechanical engineer that designs ASME Section VIII division 1 vessels. There is a situation at the facility I'm working and I would like to have some advice/opinions on how to address the issue. The production staff wants to use an existing nozzle on a tank in a way that would...