Dual Handwheel Triple Offset Butterfly Valve

ALIS Valves offers Dual Handwheel Triple Offset Butterfly Valves designed for reliable flow isolation in demanding industrial applications involving elevated pressures and temperatures. These valves feature a triple-offset disc and seat geometry that reduces friction between the sealing surfaces during operation and supports tight shut-off when correctly selected for the service conditions. The metal-to-metal sealing arrangement makes them suitable for applications where conventional soft-seated butterfly valves may not meet the required temperature or pressure requirements. The dual handwheel operating arrangement provides manual operation through the specified mechanical drive system, which may be configured with gearing to reduce operating effort and provide controlled disc movement. Depending on the application, these valves are available in different body materials, disc and seat materials, pressure classes and flanged connection options.

Dual Handwheel Triple Offset Butterfly Valves are used in power generation, oil and gas facilities, refineries, petrochemical plants, steam systems and other industrial processes requiring dependable isolation under demanding operating conditions. Depending on the valve construction and material specifications, they can handle compatible liquids, gases and steam within their rated pressure and temperature limits. Important selection factors include valve size, pressure class, operating temperature, process media, flange standard, seat material and required leakage performance. Buyers should also verify the operating torque, gearbox arrangement, available installation space and suitability of the dual handwheel mechanism for the intended valve size and service. Triple offset designs are generally intended for isolation rather than continuous throttling unless specifically rated for that duty. Selecting the appropriate dual handwheel triple offset butterfly valve helps provide reliable manual operation, reduced sealing-surface wear and dependable shut-off in compatible industrial applications.