We have been a certified VR Stamp shop now for 3 years and are getting ready for the renewal process. Does anyone have an idea what would be involved with this audit? Will we be rebuilding valves or sending off site for testing like what was done in the intial process? Any help or guidance...
I have a DA Tank onsite that is PWHT (As Built) that is in need of some repair. I was always under the impression with PWHT you are required to stress relieve after repairs are completed. The tank was never required to be PWHT but we are stuck with it now. Am I required to conduct PWHT after...
During shipment from the fabricator’s shop, our pressure vessel shifted and bent 2 nozzles on the shell section. The vessel was shipped back to the contractor for repair of the nozzles. The contractor just hammered the nozzles back to position. Is this standard practice to just hammer on the...
For use in Sect VIII UG-27. I have always used the formula for Circumferential Stress (long seams) to determine my MAWP and minimum required thickness for pressure vessels under internal pressure. When would I use the longitudinal stress formula? How do I know if longitudinal stresses are the...
Hello,
I have just recently taken a job within a jurisdictional state. When determining T-Min on a vessel shell under internal pressure only I use UG-27 with stress values out of Section 2 part D correct? The reason I ask one of our vessels onsite was calculated up to be a minimum required...
