Question (1): For the attachment of stiffening rings, Section VIII, Division 1, UG-30(a) states that "the ring shall be essentially in contact with the shell." When continuous stiffening rings are attached by fillet welding them to conical or cylindrical shells in accordance with UG-30, may a gap exist in local areas between the stiffening rings and the surface of the conical or cylindrical shells?
Reply (1): Yes.
Question (2): If the Reply to Question (1) is yes, what is the maximum allowed gap and the maximum allowed length over which the gap exists?
Reply (2): Section VIII, Division 1 does not specify dimensional limits for the gap between stiffening rings and conical or cylindrical shells. U-2(g) shall be used.