FCT Double Offset Butterfly Valve

FCT Double Offset Butterfly Valve

FCT Double Offset Butterfly Valve – High-Performance Shut-Off with Reduced Seat Wear

FCT double offset butterfly valves feature a disc offset on two axes: one from the centerline of the pipe and another from the axis of rotation. This creates a cam-like motion during operation, allowing the disc to disengage from the seat before rotation, minimizing friction and extending valve life.

Available in both soft-seated and metal-seated configurations, these valves are suitable for higher pressure and temperature applications where tight shut-off, frequent cycling, or automated control is needed.

Technical Specifications

  • Design Standards: API 609, EN 593, ISO 5752

  • Size Range: 2” to 60” (DN50 to DN1500)

  • Pressure Ratings: PN 10, 16, 25, 40 / ANSI 150, 300

  • Body Materials: Carbon Steel, Stainless Steel, Ductile Iron, WCB

  • Disc Materials: Stainless Steel, Duplex, Aluminum Bronze

  • Seat Options: Resilient (EPDM, NBR) or Metal-to-Metal (Stellite®, CrCo)

  • End Connections: Wafer, Lug, Double Flanged

  • Temperature Range: -29°C to +450°C

  • Leakage Class: EN 12266 Class A / API 598 Class IV–VI

  • Operation: Manual Gear, Pneumatic, Electric, Hydraulic

Key Features

  • Double offset geometry reduces seat friction

  • Longer service life with minimal wear and leakage

  • Available in fire-safe and metal seated versions

  • Bidirectional sealing with bubble-tight shut-off

  • Ideal for modulating or isolation service

  • Compact and actuator-friendly design

Applications

  • Oil and gas transmission and storage

  • Water distribution and desalination

  • Power generation and district heating

  • Chemical and petrochemical processing

  • Marine and offshore utility lines

  • Industrial process systems with frequent cycling