FCT Pressure Seal Swing Check Valve

FCT Pressure Seal Swing Check Valve

FCT Pressure Seal Swing Check Valve – Classic Design, Enhanced for Critical Service

FCT pressure seal swing check valves feature a swing-type disc that opens with forward flow and closes automatically upon flow reversal, offering a simple yet effective method of preventing backflow. The pressure seal bonnet eliminates bolted joints and reduces body mass, while increasing sealing performance as pressure rises.

Engineered for high-pressure steam, superheated water, and thermal fluid systems, these valves are ideal for power plants, refineries, and high-pressure piping networks.

Technical Specifications

  • Design Standards: ASME B16.34, API 594, BS 1868

  • Size Range: 2” to 36” (DN50 to DN900)

  • Pressure Ratings: ANSI 600 to 2500 / PN 100 to 420

  • Body Materials: Carbon Steel (WCB), Alloy Steel (WC6, WC9), Stainless Steel

  • Disc Type: Swing Disc with Hinge Arm

  • Seat Type: Metal-to-Metal (Stellite®, CrCo)

  • Bonnet Type: Pressure Seal

  • End Connections: Flanged, Butt Weld

  • Temperature Range: -29°C to +600°C

  • Leakage Class: API 598 Class IV or V

  • Mounting Orientation: Horizontal preferred

Key Features

  • Pressure seal bonnet enhances sealing as system pressure increases

  • Simple swing mechanism with robust hinge and disc design

  • Proven design for high-temperature and steam service

  • Metal seating ensures long-term performance

  • Easy to inspect and service internal components

  • Available with optional dashpot for damped closing

Applications

  • Boiler feed and steam systems

  • Superheated water return lines

  • Thermal oil and hot process fluid networks

  • High-pressure refinery pipelines

  • Power generation piping systems

  • Shutdown protection for critical pumps and turbines