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Judgment & ambiguity · When to escalate

A relief valve on a pressurized vessel lifted briefly during a startup transient and reseated; the operator logged it as minor and readings are normal now, but you're not certain the vessel didn't see an over-pressure event. At what point does this stop being a call you close on the floor and become one you escalate to the process-safety lead or plant manager?

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A relief device lifting is, by definition, the last barrier doing its job — that alone crosses my escalation line, and I wouldn't let it be closed as minor on the floor.

The full answer: structure, worked example, likely follow-up.

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