GNB G10PSORPX Stainless Steel Pneumatic Gate Valve 10" Opening 16" Flange

GNB G10PSORPX Stainless Steel Pneumatic Gate Valve 10" Opening 16" Flange

The GNB Corporation G10PSORPX is a large-format stainless steel pneumatic gate valve designed for high-vacuum system isolation. It features a 10-inch square gate aperture and a 16-inch circular bolt-circle flange for direct integration into vacuum chamber walls or interconnecting lines. The valve body is fabricated in stainless steel with a brass pneumatic actuator cylinder that drives the gate blade open or closed via compressed air, allowing remote or automated isolation of vacuum volumes without breaking system cleanliness.

Specifications & What's Included

• Model: GNB G10PSORPX
• Manufacturer: GNB Corporation, Hayward, CA
• Date of Manufacture: 1981 (per nameplate label)
• Serial Number: 10-39 (internal reference)
• Gate Opening: 10-inch diameter / aperture
• Flange Diameter: 16 inches (bolt-circle flange)
• Overall Dimensions: 45" x 18" x 5"
• Body Material: Stainless steel
• Actuator Type: Pneumatic (compressed air)
• Actuator Cylinder Material: Brass
• Gate Mechanism: Internal sliding gate blade with guide rails, visible and intact
• Flange face: Machined, with full bolt-hole pattern
• Included: Valve body only — pneumatic controller not included

Applications

Pneumatic gate valves of this type are used throughout semiconductor fabrication, thin film deposition, and high-vacuum research to isolate sections of a vacuum system — for example, separating a process chamber from a load lock, a pumping section from a deposition chamber, or a beam line from a roughing stage. The gate design allows the valve to open and close across a large cross-section without obstructing the process aperture, making it well suited for systems that transfer substrates or require wide, unobstructed vacuum paths. GNB Corporation was a well-regarded U.S. manufacturer of vacuum components, and their gate valves from this era were commonly found in PVD (physical vapor deposition), CVD (chemical vapor deposition), ion implant, and general high-vacuum research systems. Valves of this size and flange format continue to see active use in legacy vacuum systems, academic labs, and industrial R&D environments, and are also sought for system rebuilds and retrofits where large-bore isolation is required.