GNB slit/rectangular valves are fabricated from stainless steel or mild steel. Options include:

• Actuation: Pneumatic, Electric, Hydraulic, Manual
• Shaft Seal: Dual O-rings, Bellows
• Water Cooling: Flanges, Body, Gate
• Ports: Roughing, Gauge, View

GNB gate valves have been providing reliable long term service to customers for 40 years. Continual improvements in design improve life and reduce cost. Unique to the industry, all GNB gate valves seal both ways against full atmosphere pressure differential. Explanation of sealing both ways (pdf).

GNB has long been recognized as a supplier of value engineered, cost-effective chambers with reliable vacuum integrity and strength. We are capable of building slit/rectangular valves of any complexity.

Our technical sales staff can get GNB’s engineering involved early in the design process. GNB has experience in design applications ranging from the R&D phase into high production.

Valve Model Description (pdf)
View link to better understand valve models

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