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Gas meter and emergency control valve (diagram)

Note 2 of 12 · free preview · full note on Premium

The order of parts at a domestic gas meter, from service pipe to appliances, what each one does, and why the ECV must stay reachable.

Left-to-right supply schematic. The incoming gas service feeds a valve marked ECV (emergency control valve), then a regulator labelled sets the pressure, then a meter labelled measures gas used, then installation pipework to a gas appliance. The solid lever is open, parallel to the pipe; the ghosted closed position points down. A callout states that the ECV must be accessible and have an emergency notice nearby.
Gas meter and emergency control valve layout

The schematic follows the gas from left to right. Learn the order and what each part does.

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