Reinforcing Pad plate required?
Reinforcing Pad plate required?
(OP)
Is there a requirement in ASME Code to use reinforcing pad plates at nozzles > 2"?
I'm planning a pressure vessel in Stainless Steel Dia 3m, pressure 11 barg.
Thanks for your replies
Regards
UliR
I'm planning a pressure vessel in Stainless Steel Dia 3m, pressure 11 barg.
Thanks for your replies
Regards
UliR





RE: Reinforcing Pad plate required?
depends on the thickness of the vessel and t of the nozzle,
you have to run calcs for compensation, if compensation is required, you may add to the weld size weld design or a pad.
ER
RE: Reinforcing Pad plate required?
RE: Reinforcing Pad plate required?
thanks for your replies, they were helpfull for my planning
Best regards
UliR
RE: Reinforcing Pad plate required?
reinforcing may be required on the welds or a particular size of weld throat. if you are not sure, it is best eng practice to run calcs.
see uw16 for exceptions
ER
RE: Reinforcing Pad plate required?
External load (force and moment for process nozzles) may require the repad (e.g., in WRC 107 calculation) even if UG-36 permits no-repad for small size nozzle opening.
Even though we use the LWN type for 1 1/2" or 2" nozzles, the repads are sometimes required additionally due to the external piping force and moment given by client.