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Pipe Line Surveys & Gas Line Diagrams

Gas Line Diagrams

Where large consumers of natural gas such as industrial properties, schools, colleges or hospitals having 2 or more floors to which gas is supplied and the gas pipework is 50mm (2″) or more, there must be a gas line diagram located at the primary meter or emergency control valve.

This shall indicate the position of all installation pipework with a diameter of 25mm (1″) and larger, meters, control valves emergency control valves and pressure test points of the gas supply in the building

If you don’t have such line diagrams in place we can help you meet your obligations by providing this service


The purpose of having a line diagram on site is to allow anyone, especially the emergency services, to identify and quickly isolate part of the gas installation if necessary.

A line diagram is a requirement under regulation 24 of the Gas Safety (Installation and Use) Regulations 1998

Areas We Cover

Anglesey Caernarfon Cheshire Chester | Deeside | Llandudno Llangollen North Wales | Powis Rhyl Shrewsbury Shropshire Warrington Wirral Wrexham

Why not give us a call and we can discuss your requirements or if you would like to schedule and engineers visit

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