Selector Box

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Standard system consists of a panel incorporating gas controls & purification traps for 4 gases in a unit, viz. Nitrogen Helium, Hydrogen & Zero Air. For certain Gas Chromatographic applications, frequent changeover of carrier gas from Helium to Nitrogen is required. For such applications Selector Box is to be used. This uses a special Gas Sampling Valve which takes care of leakage problems especially faced while using Helium.