Large capacity tanks are produced in a separate line. In this production line, parts and mountings Including the plates dished ends, sockets, valves and fittings, are sourced externally the process begins with the shearing and rolling of plates into the main cylindrical shells.
The longitudinal seams are welded and dished ends beaded. Socket holes are cut into the shells and the socket welded. The dished ends are mated and welded onto the shells. Accessories are welded prior to radiographic examinations of all main welds carried out. With this stage,