API 650 Roof Nozzles
API 650 Roof Nozzles
(OP)
Anyone have experience with nozzle reinforcement design for ROOF nozzles 30"? API 650 5.8.4 references a table showing only 20" and 24" nozzles (manways) and 5.8.5.6 only includes 12" and smaller nozzles.
I've tried to examine the reinforcements and determine what correlation, if any, exists, and I have been unsuccessful. I cannot locate anything within API which explains their rationale for reinforcement areas.
I've tried to examine the reinforcements and determine what correlation, if any, exists, and I have been unsuccessful. I cannot locate anything within API which explains their rationale for reinforcement areas.





RE: API 650 Roof Nozzles
They include details with and without reinforcement, but don't say when to use either detail.
Generally, if you try to check reinforcing areas like a shell opening, the required thickness is very small and you won't need reinforcing.
Even where reinforcing is not required by design, it may be advantageous just for fit-up.