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Non-evaporable getter (NEG) pumps


Are reactive metals that have been pressed onto solid substrates or sintered into discs.  A specific combination of Zirconium, Vanadium and Iron has been found to work best for HV and UHV environments.  The amount of material used controls the speed and capacity of the NEG pump, but typically range from 55 to 412 l/s and capacity from 630 to 3600 Torr l/s.  As NEG’s become saturated with gases, they can be reactivated without venting to atmosphere.