Pipeline isolation valve

Grenfell Tower Inquiry: Phase 2 report overview, report of the public inquiry into the fire at Grenfell Tower on 14 June 2017, published in September 2024, states:

'Pipeline isolation valves are a critical part of the gas distribution network because they are intended to enable the supply of gas to be shut off quickly in an emergency. At the time of the fire at Grenfell Tower the valves could not be operated because they had been covered over in the course of hard landscaping. There was evidence that it was a common problem in the industry for pipeline isolation valves to be lost in that way. In our view that poses an unacceptable risk to health and safety and could have significant consequences. We therefore recommend that every gas transporter be required by law to check the accessibility of each such valve on its system at least once every three years and to report the results of that inspection to the Health and Safety Executive as part of its gas safety case review.'

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