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Question 405 January 2006

Definition of 'manual' safety critical valves

We are working on a project on our major hazard chemical plant to identify and provide better maintenance for ‘safety critical’ manual valves. We require a good definition of these doesn’t include so many valves to make maintenance impractical yet provides a meaningful benefit. Most valves that we consider to be safety critical, can already be actuated remotely. HSE guidance we have received is limited to those valves we may need to operate in an emergency, or to prevent a major accident or death.

Has anybody found a good solution to this problem, or have any advice they are willing to share?


The following 2 companies answered this question and a document was supplied:

  • Gallaher Ltd
  • Maersk Oil North Sea UK Limited
  • "Safety Critical Manual Valves"

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