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Since 1968, GNB is known as leading supplier of mid to large vacuum valves. Valves, designed and engineered for ultra-high vacuum applications, GNB’s engineering group offers standard and customized solutions to meet customers’ specifications. Highly skilled sales personnel support customers with project design. Based in Elk Grove, California USA and worldwide sales network.

GNB is a company of technical experts serving other technology experts. Since our beginning in 1968 it has been our commitment to technology that has set us apart. During this time we have produced outstanding, innovative products that have met themost demanding applications in areas such as temperature extremes, large sizes, radiation levels, vacuum levels, vibration levels, and unique applications.

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