The vessels vary in pressure, one at 200 MAWP and one at 600 MAWP, both are 20" OD, SA-106B or SA-516-70 material. They both take normal service fluids and are essentially a separator / receiver tank. Both prints specifically call out ASME Certified. I have seen completed tanks like this that...
We have been asked to quote several ASME Vessels that have both SAE Couplings and Anchor Style Flanges in them. My understanding is these are made from AISI 1020 material which isn't an ASME approved material for pressure vessels (from what I can tell anyway). How do other manufacturer's do...
I am having a difficult time in figuring out the Stress Ratio in Fig. 323.2.2B of B31.3 2004 Ed. What exactly is the Nominal Pressure Stress? I've figured the minimum wall thickness necessary for the pipe; going with the ID formula I come up with a minimum thickness of .599" + C.A. of .0625" =...
Thank you all for your responses, I thought the answer was that we would have to rehydro. The vessel isn't in service yet so if they really want to move the NP bracket we will just rehydro and time it for the A.I.'s next visit.
We have an ASME Code Vessel that has been completed through hydrotesting. The question has now been asked if we can move the nameplate bracket to a new location. My understanding has always been that if we weld on it again we will have to rehydro it. I have seen an answer in another thread...
