Sep 12, 2018 · All holes in the shell for nozzles larger than 2" NPS need reinforcement. Reinforcement calculations are essentially area replacement in the vertical plane of the nozzle. …

Jun 11, 2009 · I am trying to qualify some pipe supports that will require a reinforcing pad (repad) due to the hogh forces acting on the pipes. We have a structural T support and trunnion …

Jul 7, 2004 · API650 has repad sizes for nozzles. It also says that repads can be designed per API620. In API620, the size of the OD of the pad is limited to 2d of the nozzle. Anyone know …

Aug 16, 2011 · The reason for the weephole in the nozz repad is so that the welds on this repad can be 'soap-bubble' tested. This repad is tied into the vessel shell, with a weld to the nozz, …

Apr 3, 2007 · Adding a repad on the internal side is a very bad idea. I don't think it's even allowed by the Code. Why don't you go back to Piping and request them to reduce the loads. It is …

Dec 14, 2004 · For a full penetration between the repad halves, assuming that the shell was used as a backing bar, should result in a no leak joint when pressure testing to repad. If that is what …

Jun 12, 2003 · The breathing/vent hole in repad is typically tapped with threads to do a 15 psig air test on the repad weld. Just plug the tapped vent hole with stiff grease (after painting, if req'd).

Apr 23, 2010 · I am trying to determine the required length of a repad that I have requested to be added to a stub-in tee (12" run and branch dia). I concluded that I needed some reinforcement …

Jan 11, 2011 · Just looking for some opinions from the community, Specifically lift lugs with repads, but also repads in general: - MechE #1 has rule of thumb “repads should not be …

Apr 29, 2003 · So, what they currently have is a 34" nozzle inserted into a shell of 15 mm thickness with a repad of 15mm thickness (sketch b-1, Fig UG-40) PLUS a 6mm repad on top …