Flanged Metal Seated Butterfly Valve

ALIS Valves offers Flanged Metal Seated Butterfly Valves for industrial applications requiring durable flow control and reliable isolation under demanding operating conditions. These valves feature a butterfly disc mounted on a rotating shaft, allowing the flow passage to be opened, closed or regulated by adjusting the disc position. The metal-to-metal seating arrangement uses metallic sealing surfaces designed to withstand demanding service conditions, including elevated temperatures and applications where conventional soft seats may not be suitable. The flanged body provides bolted connections to compatible pipeline flanges, supporting secure installation in industrial piping systems. Depending on the valve design, body materials, disc construction and sealing geometry can be selected to suit the required pressure, temperature and process media. Manual, pneumatic or electric actuation options may be available according to operating and automation requirements.

Flanged Metal Seated Butterfly Valves are used in power generation, oil and gas facilities, refineries, petrochemical plants, steel manufacturing, chemical processing and other industrial applications involving demanding process conditions. Depending on the specified materials and design ratings, they can be selected for compatible liquids, gases, steam and certain high-temperature process media. Important selection factors include valve size, pressure class, operating temperature, flange standard, process media, body and disc materials, metal seat design, allowable leakage rate and operating torque. Metal-seated valves may have different leakage performance from resilient-seated designs, so the required shut-off class should be confirmed during specification. Actuator sizing and compatibility with the pipeline control system should also be considered where automated operation is required. Selecting the appropriate valve configuration helps support reliable isolation, resistance to seat wear and dependable service within the specified operating limits.