Partnering to provide vacuum products, services; EXCELLENCE!
GNB has a proven track record of manufacturing high quality, reliable vacuum products since 1968 and is known as America's leading manufacturer of large vacuum valves. In addition, GNB offers a diverse range of vacuum products and services, including: inline chambers, slit valves, gate valves, pendulum valves, angle valves, vacuum chambers, liquid nitrogen traps, custom flanges and fittings, viewports, bellows, multi-coolant baffles, throttle plates, and much more. Given our expert group of engineers, GNB can efficiently customize our clients’ products. With extensive experience combined with an outstanding reputation for high quality products and customer service, GNB is the valued resource for your next vacuum system.