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Chattering pressure safety valve

Published on 27/01/23 707 Views

An explosion occurred on a refinery after a pressure safety valve opened. The vigorous opening and closing of the safety valve caused trembling that damaged the piping and caused an LPG release; the vapour cloud ignited.

Ask yourself and your crew:

  • How can something like this happen here (e.g. on our site)?
  • What safety measures (i.e. procedures, controls/barriers) do we have in place to mitigate the risk?
  • How do we know the risk controls/barriers are working?
  • What improvements or changes should we make to the procedures, controls/barriers or the way we work?

Original material courtesy of the European Process Safety Centre