Strange question....one of my clients is being questioned by the AI with regard to whether the vessel MDMT reflects the low temperature which may result locally in the shell and nozzle in the event of a SRV opening, somebody (not I) has done calculations showing that theoretically the SRV...
Do you have to do Production Weld impact test if you: A)Have ordered your material already impact tested (yes it is required to meet the MDMT) B)Have qualified Section IX weld procedures which includes impact testing well below the current MDMT and further includes PWHT
Basically I have a thick...
This probably has been posted before.....I note the Code doesnt really doesnt provide much guidance with regard to when you use the high or the low allowable stress values for 316 and 316L SS, aside from advising you to use your best engineering judgement and to consider the lower values when...
Hi
Hopefully there is a straight forward answer to this, I recently had a client indicate that with vessels which have extra thickness (ie I assume due to larger corrosion allowances (3/16' - 1/4") or I suppose cases where the nominal plate thickness used is "notably" thicker than the minimum...
I am sure this must have been asked numerous times before, but I couldnt find a thread that clarified. I have been asked to look at piping system (constructed to B31.3) that includes several several DIN Flanges (ie presumably utilized to tie into DIN flanged process control valves and process...
Hi Folks
Any words of wisdom with regard to the design of nozzles (pressure vessel) which are located in the zone outside of 80% of the elliptical head diameter (other than don't put them there). The reinforcement issues seem reasonably manageable but it seems to be a bit dicey as the nozzle...
Have vessel with an external ASME Section VIII Appendix 17 designed ss dimpled jacket assembly which is showing all the classic signs of age (30 yrs) with fatigue cracks developing at the toe of the condensate outlet nozzle, around some of the plug welds and at the jacket boundary welds. The...
Hi
Does anybody know whether there have been any interpretations issued in ASME Sect 1 which address whether you are able to do a pneumatic test in lieu of a Hydrostatic.
I have a horizontal vessel built to ASME 1 which is very difficult to vent because of an internal coil tube configuration...
I have to review the fitness of a carbon steel welded vessel constructed in 1948, no MDR is available for the vessel. A couple of the things I need to know to get the process started and I was hoping someone might have an answer to these questions:
1)The stated Tensile Strength of the carbon...
Have a client who would like to use a vessel constructed to CFR 49-179.5 - DOT-107A (?) for High Pressure Helium Gas Storage (3000 psig)... his will be a static storage application and not for transport purposes. I am not at all familiar with vessels designed to this code, nor do I have a copy...
Folks
I know this has been discussed in different themes in the forum before but I would like to get a clear interpretation on it if possible....so a couple of questions on this issue.
a) When using a standard seamless pipe cap or seamless formed head it has always been my understanding that...
I am making up a larger fitting (which has to be registered) out of several standard fitting components (ie WN Flanges, piping tees, piping etc). By ASME B31.3 I am permitted to use the established ratings for listed components (ie B16.5 lists P & T ratings for various material groups and...
