Gas supply 5.5

5.5.1 Equipment for gas take-off stations (stop valves, pressure regulators, gas mixers, safety devices,
5.5.2 Individual cylinders (pressure reducers and anti-flashback and backflow devices)
5.5.3 Gas sources/tanks with pipework and valves (storage tanks, tankers, containers, cylinder racks and
5.5.4 Special equipment and general accessories (automatic switching and pressure control systems, gas a
5.5.5 Central switching, pressure regulating and safety units, gas mixing units and valves for supply pi