I am working on a Storage Tank (OD: 12' and Height: 16')which will be complied with API 12F. I checked API 12F code, but I didn't find sufficient information about the dome (head). It looks like a cone dome (very flat), I don't know the detailed design. Please advise.
Thanks,
A tank, DP:15psig, DT:200F, ID:144"; Height:16ft; Material: A-36. A manhole 24" another 4 nozzles (3"~8") will be installed on the head. I am struggling with what type of head I should use.
If it is too large to use Flat Head or Weld cover? F & D head is a right choice? I checked UG-34, and may...
Yes, shell THK calculation is per UG 27 (C). The thickness 0.28" was obtained from external pressure 15 psig and ac 1/8" by Compress (87.5% after mill is counted). Actually, both internal and external pressures are ATM, we may don't need to consider external pressure. So the required min THK...
I calculated the minimum THK of the re-pad per UG-27(c)(1,2),yes, it is on the order of 0.01" which is very thin. The nominal shell THK is 0.3125", the calculated required min shell THK is 0.28". 0.3125"-0.28"=0.0325". And 0.0325">>0.01", so it can be self-reinforced, is it what you mean?
Thanks,
Thank you very much for your comments.
Yes, the calculated required pad thickness is very low. What do you mean that the openings may be self-reinforced (don't need re-pad?), For example: The design THK is 3/8", the nominal THK:0.3125", and the calculated required pad thickness is 0.0625". So...
1) It is in CA, USA
2) Vessel Length is 10' TAN to TAN
3) DP: 15 PSI, DT: Ambient/ Material: SA-106B 3/8" THK, Horizontal vessel, Saddle and base plate: SA-36
Thanks,
I working on a storage vessel, it uses 24" pipe as the shell, heads are pipe caps. There are several nozzles with the size equal to or greater than 4". Two manhole's sizes are 10".
According to ASME code, the re-pads should be considered. The vender said it is not a standard vessel, and they...
