Gas control Box is used when there is more than one Gas Chromatograph. It helps to control the flow and pressure of different GCs. From a Gas Purification System, purified gases can be supplied to a number of Gas Chromatographs through Gas Control Boxes when each instruments requires different delivery pressure & flow.
Gas Control Box is generally installed between Gas Purification system and gas Chromatograph. It consist of pressure gauge, pressure regulator and toggle valves (Ball Valves). This also isolates system, used for for FID, TCD, ECD, ICP, MS and AAS.