Retainer Ring Diagram

Retainer Ring Diagram: Retainer ring height is 50mm and we have not modified the retainer Ring. I have taken some pictures for retainer ring and diagram which are attached under. -

There is uneven shell and welding issue as pointed out by you. We install brick on retainer with slight cut towards retainer to ensure proper setting of brick. High axial stresses on this retainer ring area are observed.