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    Wafer Pnematic Butterfly Valve

    DELCO Stainless Steel Wafer Pnematic Butterfly Valves

    The DK67-WB-S Stainless Steel Pneumatic Operated Wafer Type Butterfly Valves is designed for alignment and support in any position. It features a premium pneumatic actuator that operates on an Air-to-Air (Double Acting) mechanism, with an optional Spring Return. The default working pressure is PN16, with customization options for 150LB / 10K standard valve bodies.

    As a pneumatic operated butterfly valve, DELCO offers these valves in both cast iron and stainless steel materials to meet various application needs.

    Model: DK67-WB-S
    Size Range: 2″-16″
    Pressure Range: 1.0 to 1.6MPa
    Material: Stainless Steel 304, 316

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      DELCO Stainless Steel Pnematic Operated Wafer Butterfly Valve

      The valve ensures zero leakage and supports bi-directional flow, providing reliable performance. It is designed for low torque operation, a long life cycle, and fast acting. The 360° polished discs guarantee dependable switching, while the epoxy-coated body offers a smooth surface finish. Available actuator types include spring return (single-acting) and double-acting.

      The triangular support structure ensures the necessary mechanical properties. Additionally, the valve features a no-groove design at the bottom to prevent slag accumulation and allow full bore flow.

      Technical Parameters of Valve Actuator

      Double actingAir to open, air to close, air supplier failure to keep the current position
      Single acting N/CAir to open, interrupt air to close, air failure to close
      Single acting N/OAir to close, interrupt air to open, air failure to open
      Optional accessoryReversing solenoid valve, limit switch box, air filter reducing valve, positioner, handle manual, lock up valve.
      Pneumatic Actuator

      Technical Parameters of Valve Body

      Actuator Type Spring Return / Double Acting Connection Wafer
      Size Range DN50-DN400 Structure Type Midline Structure / A Type
      Working Pressure 1.0 / 1.6MPa (10 / 16 bar) Body Material Stainless Steel
      Suitable Media Water, Liquids, Gas, Oil, Air, Steam, Corrosive Medium, etc Temperature Of Media -10~180℃ (14℉~356℉)
      Disc Material Aluminum Bronze, Ductile Iron Nickel-Lin Stem Material Nickel-plated steel Lin, SS304, SS316, SS416
      Actuator

      Air source processor: Combines filtering, pressure reduction, and lubrication functions, ensuring stable outlet pressure. Available in two-piece assemblies for filtering compressed instrument air and three-piece configurations for added lubrication.

      Pneumatic solenoid valve: Regulates the opening and closing of pneumatic valves by magnetizing and demagnetizing to direct gas flow based on voltage signals. Offers precise control over valve operations, commonly used for managing gas source and circuit flow.

      Limit switch: Detects valve status and outputs signals for open or closed positions. Critical in automatic control systems, confirming and executing subsequent programs, providing valve interlock protection, and indicating remote alarms within the system.

      Valve positioner: Crucial for precise control over valve positioning in pneumatic control valves, comparing valve stem displacement and controller output signals, adjusting the actuator output signal accordingly.

      Manual device: Complements pneumatic actuator assemblies, facilitating manual or pneumatic operation for butterfly and ball valves with a 90° opening. Ensures versatility and flexibility in valve operation, allowing for manual and automated control as needed.

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