ZWICK's 30 years of experience in the design and production of valves guarantee high standard products. ZWICK valves are produced state-of-the-art. The triple-offset butterfly valves are specially designed for critical services, where they are used as shutoff and control valves. The in-house design enables offering customized solutions for individual applications like the global Industries of Oil and Gas, Chemical, Petrochemical, Energy, Offshore, and Steel. TRI-CON valves incorporate a unique third-offset design with true cone-in-cone seating and reliable zero-leakage performance, allowing bidirectional tightness.
The ZWICK self-centering disc design that is keyed to the shaft accommodates differential thermal expansions of the disc and the shaft. The triple offset geometry assures friction free running without radial loading of the seal ring and break-away torque. The TRI-CON series reaches a superior, unrivaled lifetime cycle. For critical services, a patented sealed bearing solution is offered to prevent fouling of the bearing associated with line media. ZWICK’s zero-leakage bearing design assures that no line media will migrate into bearings cavity. TRI-CON’s standard graphite packing meets all requirements of TA-Luft for fugitive emissions from the shaft and packing arrangements. All triple offset valves are certified according to Fire-Safe to API and British Standard.
Discover more at ZWICK
TRI-CON Valves
TRI-CON Triple Offset Metal-Seated Butterfly Valves
The TRI-CON series represents advanced triple-offset butterfly valve technology designed for tight shutoff in critical process applications. Its unique cone-in-cone seating geometry enables frictionless operation, minimal wear, and reliable bi-directional sealing.
Key benefits include:
- True zero-leakage performance
- Reduced torque and longer service life
- Reliable sealing under extreme temperature and pressure conditions
- Ideal for critical isolation and control applications
These valves are widely used where dependable shutoff and long lifecycle performance are essential.
TRI-CHECK Valves
TRI-CHECK Heavy-Duty Non-Return (Check) Valves
The TRI-CHECK series combines the proven triple-offset design of TRI-CON valves with a non-return valve configuration to protect pumps and process equipment. A hydraulic damping system enables smooth closing, helping prevent damaging pressure surges and water hammer.
Key benefits include:
- Zero leakage sealing performance
- Adjustable damping for controlled valve closure
- Reduced risk of pressure spikes and system damage
- Ideal for pump protection and flow control applications
The result is a durable check valve designed for reliable operation in demanding industrial processes.
TRI-BLOCK Valves
TRI-BLOCK Double Block and Bleed Valve Technology
The TRI-BLOCK series provides integrated double block and bleed functionality within a single valve body. By combining two triple-offset butterfly valves with a bleed port, this design enables secure isolation and verification of system integrity.
Key benefits include:
- Redundant shutoff for enhanced safety
- Integrated bleed port for pressure verification
- Compact design that reduces installation space
- Ideal for critical isolation and maintenance operations
This configuration improves process safety while simplifying piping layouts and reducing system complexity.
TRI-SHARK Valves
TRI-SHARK High-Performance Control Valves
The TRI-SHARK series is designed for precision flow control in severe service environments. Its specialized Sharktooth trim provides excellent rangeability while helping minimize cavitation, vibration, and noise.
Key benefits include:
- Equal-percentage control characteristics
- Reduced cavitation and noise levels
- Stable performance across a wide operating range
- Capable of operating from cryogenic temperatures to extreme heat
These valves deliver accurate, reliable control for demanding process applications involving liquids, gases, and steam.
Available through Valin, Zwick valves provide proven performance in the most challenging industrial environments, helping facilities improve reliability, safety, and operational efficiency.
Blogs