Vessel thickness
Vessel thickness
(OP)
I'm calculating a nozzle addition and trying to replicate the original vessel thickness for a Section VIII Div 1 vessel built in 1961.
Using the 4.0 safety factor and formula from UG-27 I'm getting a result just short of being acceptable. Vessel was fully radiographed so I'm using an efficiency of 1.0.
Question? Are there any other variables that were different back then that are not used now?
Using the 4.0 safety factor and formula from UG-27 I'm getting a result just short of being acceptable. Vessel was fully radiographed so I'm using an efficiency of 1.0.
Question? Are there any other variables that were different back then that are not used now?





RE: Vessel thickness
RE: Vessel thickness
I figured out what I was doing wrong. I had added head pressure. This is a propane tank and most likely designed without it. I took it off, now it works.