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.
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
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
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