Gate Valves

GNB round valves are fabricated from stainless steel or mild steel.
Options include:

Actuation: Pneumatic, Electric, Hydraulic, Manual
Flanges: ASA, ISO, Conflat, Custom Designed
Shaft Seal: Dual O-rings, Bellows
Water Cooling: Flanges, Body, Gate
Ports: Roughing, Gauge, View

Specification Chart/CAD Drawings DRAWING REQUEST

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.

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 round 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.

PMG - Protective Metal Guard

Designed to protect internal mechanism from process exposure.

Space Saver Gate Valve Drawings

Designed for small spaces.

Valve Model Description

For better understand valve models

GNB standard gate valves are built up to 72 inches (~2m) with linear actuation and 35 inches (90cm) in cross actuation.