This 5 ft diameter vertical vessel is based on a combination of different jobs. It has features often found on softener and filter vessels, although the combination presented here is unlikely to be used on one vessel.
The vessel leg supports are calculated using IBC-2000 seismic methods. The correct Seismic R factors for a vessel can be found in Table 15.4-2 of ASCE Standard 7-05.
Pad flange nozzle calculations are shown in the Spreadsheet version of the calculations. The pad flange is calculated to pass both the rules of nozzles (page 11) and flanges (page 12).
Sample calculations for APV, PVElite and PVEng spreadsheets as well as the vessel drawing can be downloaded below.