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    DELCO Soft Sealing Lug Type Pneumatic Butterfly Valves

    The DELCO DK67-LB pneumatic lug type butterfly valve offers flexibility with its cast iron body construction. It operates in both double-acting standard control and single acting modes.

    With an input air pressure range of 2.5 to 8 bar and a minimum 2-inch lug connection, it’s adaptable to various systems. Its default NBR seat ensures reliable sealing, making it suitable for applications involving air, water, light oil, fuels, solvents, alcohol, and many acids.

    Additionally, users can opt for either EPDM or PTFE seat configurations to meet specific requirements.

    Model: DK67-LB
    Size Range: 2″ to 12″
    Pressure Range: 1.0 to 1.6MPa
    Material: Cast Iron, Cast Steel, Ductile Iron, Stainless Steel 304/316

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      DELCO Pneumatic Soft Sealing Lug Type Butterfly Valve

      Furthermore, additional components such as positioners, limit switches, hand wheels, and solenoid valves can be integrated as needed. With options for both Spring Return (Single Acting) and Double Acting pneumatic actuators, users can select the actuator type that best suits their requirements.

      Structured with a midline or A-Type design, this valve operates on a quarter-turn rotation principle. Its robust construction is available in materials including Cast Iron, Cast Steel, Ductile Iron, and Stainless Steel, ensuring durability and compatibility with different environments.

      Featuring multiple connection types such as Wafer, Lug, Tri Clamp, and Flange, this valve accommodates diverse installation needs. Noteworthy features include a large size range, extended 1 million lifetime cycles, and fast-acting capabilities, enhancing efficiency and reliability.

      Designed to handle various mediums including water, oil, air, and gas, this butterfly valve offers versatility across a wide range of applications, ensuring suitability for different industrial contexts.

      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

      Body Valve components
      Size range DN50-DN300 Sealing material EPDM:-10℃~120℃ PTFE:-10℃~180℃ VITON: -10℃~100℃ NBR:-10℃-80℃
      Body material Stainless Steel Disc material Stainless steel
      End connection  Lug Stem material Cast Iron
      Operating pressure 1.0MPa 1.6MPa Applicable media Control of Water, Air, Gas,Oil, Liquid, Steam
      Structure Midline Structure/ A-type
      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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