Attached Equipment

Other equipment, such as reboilers or valves, occasionally are connected directly to pressure vessel nozzles without providing separate support. The weight of this equipment results in forces and moments on the nozzles that develop local stresses in the vessel’s shell similar to the stresses caused by piping connections. If these stresses are great enough to affect the design of the nozzle and reinforcement of the opening, when added to those attributable to internal pressure, additional support for the attached equipment should be considered.

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