Case H: Broken Stainless-Steel Hinge for a Check Valve


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Case H: Broken Stainless-Steel Hinge for a Check Valve
Case H: Broken Stainless-Steel Hinge for a Check Valve
Introduction A broken steel hinge for a check valve in a saltwater line was received from a petroleum manufacturer. The exact configuration of the broken part in the check-valve assembly was not known, but a schematic representation of a possible assembled configuration is shown in Fig. 7.78. A cover letter accompanying the two broken pieces stated: "These check valves are in service in produce water (saltwater) pipelines. If the pump goes down, these valves close to prevent the high pressure from the discharge line from getting into the low-pressure suction line. When t…
Citation
Charlie R. Brooks; Ashok Choudhury: Failure Analysis of Engineering Materials. Case H: Broken Stainless-Steel Hinge for a Check Valve, Chapter (McGraw-Hill Professional, 2002), AccessEngineering Export