More than 40 years of experience in 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 shut off 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 a true cone-in-cone seating and a reliable zero-leakage performance and allow bi-directional tightness.

The ZWICK self-centring 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 unrivalled 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.