
Extrem Extension Long Stem Bidirectional Metal Sealed Electric Triple Offset Flange. DN500 to DN2400 Body Alloy Steel Seat Quarter Turn Butterfly Valve. Triple-offset geometry ensures frictionless disc operation, greatly extending seal life and reducing maintenance costs. Metal hard seal with hardfaced alloy offers superior wear and erosion resistance for high-temp, high-pressure, and slurry services. Bidirectional sealing capability provides zero-leakage tight shutoff in both flow directions for demanding applications. Small sizes feature direct-mounted actuator; large sizes add worm gearbox for high torque and smooth operation. Supports 4-20mA analog modulation and remote on-off control for precise integration into automated systems. Smart actuator features self-diagnostics for real-time status monitoring, simplifying maintenance and troubleshooting. Stem bearings use self-lubricating material, ensuring low torque and smooth operation over long-term service. Flange connections comply with GB and ANSI standards, enabling easy replacement of existing valves in pipelines. Seat materials include Stellite, Inconel, and stainless steel options to suit various corrosive media conditions. Compact and lightweight design saves space; large-diameter models are easy to transport, install, and maintain.