Brand: Zwick

Engineered for absolute shut-off in the most demanding gas and liquid applications.

The Zwick Tri-Con triple offset valve is engineered for zero-leakage performance, even under extreme temperature variations and pressure peaks. With the widest laminated seal ring in the market, it provides unmatched durability and long-term sealing integrity, ensuring leak-free operation in critical gas and liquid services.

For technicians, engineers and production managers, this means:

• Longer production runs, with fewer shutdowns
• No costly or dangerous leaks, protecting the environment and process efficiency
• Reduced seat wear, thanks to frictionless cone-in-cone sealing for smooth, low-torque operation
• Lower installation costs—lighter weight and smaller installation envelope, reducing the need for large cranes, extended rigging crews, or costly modifications when replacing older gate valves

The frictionless triple offset seating design eliminates break-away torque, reducing actuator wear and enabling smooth operation—minimising maintenance and extending valve life.

With proven installations across synthetic fuels, oil & gas, chemical, and power generation industries in South Africa, the Tri-Con is available in double flanged, wafer, lug, butt weld and gate valve face-to-face configurations. It’s also ideal for oxygen service and steam-jacketed applications such as molten sulphur.

Our Valve Repair Centres in Secunda and Durban provide full valve reconditioning, automation, and testing services, keeping your Zwick Tri-Con in peak operating condition.