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Butterfly Valves

Wafer Type Butterfly Valve

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Overview:

The Wafer Type Butterfly Valve is a versatile and widely used valve in various industrial applications, designed for flow control and shut-off purposes. Its wafer-type design allows for easy installation between flanges in pipelines, making it ideal for compact spaces and systems requiring a lightweight valve.

Product Features:

  1. Compact Wafer Design:
    • Slim Profile: The wafer-style valve has a compact design that allows it to be sandwiched between two flanges, reducing overall system weight and space requirements.
    • Easy Installation: The valve is designed for easy installation in pipelines with standardized flange connections, typically clamped between flanges without the need for additional gaskets.
  2. Resilient Seated Design:
    • Soft Seal: The valve comes with a resilient seat, commonly made from EPDM, NBR, or PTFE, which provides a tight shut-off, ensuring minimal leakage.
    • Durable Material Options: The valve body and disc can be made from materials like stainless steel, carbon steel, or ductile iron to suit different types of media and operating environments.
  3. Flow Control Efficiency:
    • Quarter-Turn Operation: A simple 90-degree turn of the handle or actuator allows the valve to fully open or close, providing fast and efficient flow control.
    • Minimal Pressure Drop: The streamlined design of the valve’s disc minimizes pressure loss when the valve is in the open position, ensuring smooth fluid flow through the pipeline.
  4. Wide Range of Sizes:
    • Available in sizes ranging from DN40 to DN1200, making it suitable for both small and large-scale applications.
  5. Bi-Directional Flow:
    • The valve can control flow in both directions, providing flexibility in pipeline design and operation.
  6. Manual and Automated Operation:
    • Manual Operation: Wafer butterfly valves can be operated manually with a lever handle or gear operator.
    • Automated Control: They can also be fitted with pneumatic, electric, or hydraulic actuators for automatic operation, depending on the application’s needs.
  7. Pressure and Temperature Ratings:
    • Pressure Rating: Typically rated for pressures up to PN16, but can vary based on valve size and material.
    • Temperature Range: Suitable for temperatures ranging from -40°C to 180°C, depending on the seal and material options.
  8. Corrosion Resistance:
    • With body and disc options in corrosion-resistant materials, such as stainless steel or with protective coatings, the valve can be used in corrosive environments like water treatment, chemical processing, and marine applications.

Applications:

  • Water Treatment: Commonly used in water treatment plants for flow control of clean and treated water.
  • HVAC Systems: Ideal for heating, ventilation, and air conditioning systems to regulate air or fluid flow.
  • Chemical Processing: Suitable for handling chemical fluids when equipped with corrosion-resistant materials and seals.
  • Food and Beverage Industry: With appropriate sanitary materials, it can be used in food and beverage processing systems.
  • Pulp and Paper: Used to control flow in pulp and paper mills for handling water, chemicals, and other media.

Advantages:

  • Compact and Lightweight: Easy to install and suitable for systems with limited space.
  • Cost-Effective: Typically less expensive than other types of valves, such as gate or globe valves, for similar flow control tasks.
  • Quick Operation: The quarter-turn design allows for rapid opening and closing, improving operational efficiency.
  • Versatile Applications: Can be used in a wide variety of industries, offering flexibility in pipeline management.

Conclusion:

The Wafer Type Butterfly Valve offers a reliable, cost-effective, and space-saving solution for controlling flow in pipelines. Its ease of installation, wide material options, and suitability for both manual and automated control make it a popular choice in industries ranging from water treatment to chemical processing. With its quick operation and low maintenance, this valve is an excellent choice for applications requiring efficient flow control and tight shut-off.

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