Hello, I am attempting to justify the use of a reinforcing ring (10mm thick by 100mm length by 1265 OD)around the circumference of a shell (10mm thick by 1500mm length by 1245 OD)in-between the shell and the flange. This is reinforcement at the head ends of the shell. ASME BPVC.VIII.1-2015 1-1 (a)(1) requires 10mm thick shell but production insists on 10mm x 100mm reinforcing ring between flange and shell at ends. Flange is App.2. Thanks in advance for your input!
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