This automatic changeover panel provides continuous, uninterrupted gas supply on virtually any non-corrosive installation where a reserve cylinder is used. The unit consists of two identical regulators - one delivering gas at a slightly higher pressure than its twin. When the service cylinder is empty, the unit automatically withdraws gas from the reserve sylinder, eliminating the need to shut down the system to replace empty cylinders. the indicating pressure switch gauges denote which cylinder is in use.

This sytem includes integrated check valves in the CGA connections that help eliminate atmospheric contamination during cylinder change out. All systems include a six-sided mounting enclosure, flexible Synflex pigtails (except CGA 540 with rigid plated copper), isolation valves and outlet shut-off valve.

For applications using portable cylinder banks, Airgas strongly recommends the 6-ft. pigtail option to facilitate the safe positioning of the banks in front of the manifold.

Alarm systems to indicate that a cylinder changeover has occurred can be factory or field installed.