30 cubic above ground horizontal storage tank
The form and size of welded joints are in accordance with the regulations in HG/T20583-2011: the welding of butt joints adopts DU4, DU25 or DU29; the welding of connecting pipes and shells adopts G4 (full welding), and the welding of connecting pipes with reinforcing rings and shells G29 (full penetration) is used; the end of the connecting pipe and the shell is polished smoothly (no sharp corners); the connecting pipe without additional reinforcement shall not be located on the welding street of type A and B; the fillet size of the fillet weld shall be thinner The thickness of the flange should be smooth, and the transition should be smooth; the welding of the flange should be in accordance with the provisions of the corresponding flange standard.
