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Butterfly Valves

Soft Sealing Butterfly Valve

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Overview:

The Soft Sealing Butterfly Valve is a versatile flow control valve designed for low-pressure applications, providing reliable shut-off and regulation of fluid flow. This valve utilizes a soft, elastomeric material for the seat, which ensures tight sealing and zero leakage.

Product Features:

  1. Soft Seal Design:
    • Leak-Free Performance: The soft sealing ring, typically made from EPDM, NBR, PTFE, or other elastomeric materials, provides tight sealing to prevent fluid leakage.
    • Bidirectional Sealing: Capable of sealing effectively in both flow directions, enhancing system flexibility.
  2. Wafer or Lug Body Style:
    • Compact Design: Available in wafer or lug body types, these valves are designed for installation between flanges, saving space and reducing installation costs.
    • Ease of Installation: The wafer design allows for easy installation and removal, while the lug design provides additional support for piping.
  3. Quarter-Turn Operation:
    • Quick Opening/Closing: The valve operates with a 90-degree turn, allowing for rapid and efficient flow control.
    • Manual or Actuated: It can be operated manually with a lever or wheel, or automated using electric or pneumatic actuators for remote control.
  4. Disc Options:
    • Corrosion-Resistant Discs: The disc can be made from materials such as stainless steel, aluminum bronze, or ductile iron, depending on the application’s requirements.
    • Streamlined Design: The disc’s shape is engineered to minimize flow resistance and pressure drop, ensuring efficient flow rates.
  5. Resilient Seat:
    • Long Service Life: The soft sealing material provides excellent wear resistance and durability, especially in low-pressure systems.
    • Low Operating Torque: The flexible seat reduces friction between the disc and seat, making the valve easy to operate.
  6. Wide Range of Materials:
    • Body Materials: Available in cast iron, ductile iron, carbon steel, and stainless steel, suitable for various fluid types and environments.
    • Elastomer Choices: Different sealing materials are available to suit specific media, such as water, gases, oils, and weak chemicals.
  7. Pressure and Temperature Ratings:
    • Pressure Rating: Typically rated for low to medium pressure applications, up to PN10 or PN16.
    • Temperature Range: Suitable for temperatures ranging from -20°C to 120°C, depending on the materials used for the seat and body.
  8. Corrosion Resistance:
    • Anti-Corrosive Coating: The body and disc can be coated with anti-corrosive materials such as epoxy or rubber linings to enhance resistance to corrosion.
    • Suitable for Aggressive Fluids: Soft-seal butterfly valves can be used in chemical industries where fluids are mildly corrosive or abrasive.
  9. Low Maintenance:
    • Simple Design: With fewer moving parts, these valves are easy to maintain and have a long operational life.
    • Replaceable Seats: The soft seat is typically replaceable, making maintenance convenient and extending the valve’s service life.

Applications:

  • Water Treatment Plants: Ideal for water distribution, wastewater treatment, and other fluid handling systems.
  • HVAC Systems: Commonly used in heating, ventilation, and air conditioning for controlling water flow.
  • Food and Beverage Industry: The soft seal ensures hygienic performance in processes where contamination must be avoided.
  • Chemical Processing: Suitable for mildly corrosive chemicals, oils, and other industrial fluids.
  • Fire Protection Systems: Often used in firefighting systems for reliable flow control.

Advantages:

  • Excellent Sealing Performance: Soft seats provide tight sealing, ensuring no fluid leakage even at low pressures.
  • Cost-Effective: The simple design and materials make it an economical choice for low to medium-pressure applications.
  • Versatile: Can handle a wide range of fluids, including water, air, oils, and weak chemicals.
  • Compact and Lightweight: Its space-saving design makes it ideal for installations in confined spaces.
  • Easy Operation: Low operating torque allows for smooth manual or automated operation.

Conclusion:

The Soft Sealing Butterfly Valve offers a cost-effective, reliable, and durable solution for industries requiring efficient flow control. Its soft seat provides tight sealing and long service life, making it ideal for applications in water treatment, HVAC, and other fluid-handling systems. With its wide range of material options and easy maintenance, this valve is a versatile choice for various industrial applications.

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