Diaphragm gas meter cutaway

What you're seeing

A diaphragm gas meter cut away to show its measuring chambers, diaphragms and valves, and how each cycle passes a fixed volume of gas and drives the index. Drawn from general knowledge and awaiting review against the relevant meter and installation standards.

What it shows

• The measuring chambers and diaphragms
• How the valves alternate to pass a fixed volume each cycle
• How chamber movement drives the index