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Wafer Type Butterfly Valve

The Wafer Concentric Butterfly Valve offers reliable performance in various industrial applications. Its compact design and wafer-style body make installation simple and cost-effective. With a concentric disc design, this valve ensures a tight seal, reducing the risk of leaks. Its corrosion-resistant materials and durable construction guarantee long-term efficiency, even in demanding environments. Ideal for throttling and isolation, this valve provides smooth operation and minimal pressure drop. Whether used in water treatment plants, HVAC systems, or chemical processing, the Wafer Concentric Butterfly Valve delivers superior performance and dependable service.

Design and Operation

  • Disk-Shaped Closure Element: The design features a disk-shaped closure element, or “butterfly,” mounted on a central shaft.
  • Quarter-Turn Rotation: The disk rotates a quarter turn to allow or block fluid flow. When open, the disk aligns parallel to the flow, and when closed, it is perpendicular, sealing off the pipeline.
  • Efficient Mechanism: This mechanism allows for quick and easy operation, suitable for both manual and automated systems, with minimal wear and tear, contributing to longevity and reliability.

Advantages

  • Compact and Lightweight: Wafer type butterfly valves are easy to handle and install, reducing labor costs and installation time.
  • Minimal Structural Support: Their lightweight design requires less structural support, leading to further cost savings.
  • Quick Operation: The quarter-turn mechanism allows for rapid opening and closing, ideal for applications needing frequent operation or rapid response.
  • Low Maintenance: The simple design results in lower maintenance requirements, making them a cost-effective solution.

Material Options

  • Variety of Materials: These valves are made from materials such as cast iron, ductile iron, stainless steel, and PVC to suit different conditions and fluid media.
  • Cast Iron and Ductile Iron: Often used in water and wastewater treatment for their durability and cost-effectiveness.
  • Stainless Steel: Chosen for high corrosion resistance, suitable for chemical processing and food and beverage production where sanitary conditions are essential.
  • Tailored Solutions: Different materials ensure the valves meet specific operational needs, including resistance to corrosion, high pressure, or extreme temperatures.

Applications

  • Wide Range of Uses: Wafer type butterfly valves are used across various industries due to their reliability and cost-effectiveness.
  • Water Treatment Plants: Regulate water and chemical flow for efficient processing and distribution.
  • HVAC Systems: Control air and water flow, contributing to temperature regulation and energy efficiency.
  • Chemical Processing: Handle corrosive substances safely.
  • Food and Beverage Industry: Maintain sanitary conditions and precise flow control.
  • High-Pressure and Low-Pressure Systems: Suitable for both, enhancing versatility.
  • Dependable Choice: Simple design and robust performance ensure smooth and efficient operations in various industrial processes.

Dimension

SIZE DN Φ D L N-Φ d ISO5211 Φ G
in mm A-series B-series (mm) A-series B-series
2 50 120.7 43 4 – Φ 19 F05 9 X 9
2 1/2 65 139.7 46 4 – Φ 19 F05 9 X 9
3 80 152.4 46 4 – Φ 19 F05 9 X 9
4 100 190.5 52 8 – Φ 19 F07 11 X 11
5 125 215.9 56 8 – Φ 22 F07 14 X 14
6 150 241.3 56 8 – Φ 22 F07 14 X 14
8 200 298.5 60 8 – Φ 22 F10 17 X 17
10 250 362 68 12 – Φ 25 F10 22 X 22
12 300 431.8 78 12 – Φ 25 F10 22 X 22
14 350 476.3 78 12 – Φ 29 F10 22 X 22
16 400 539.8 102 16 – Φ 29 F14
18 450 577.9 114 16 – Φ 32 F14
20 500 635 127 20 – Φ 32 F14
24 600 749.3 154 20 – Φ 35 F16
28 700 863.6 795.3 165 28 – Φ 35 40 – Φ 22 F25
32 800 977.9 900.1 190 28- Φ 41 48 – Φ 22 F25
36 900 1085.8 1009.6 203 32 – Φ 41 44 – Φ 25 F25
40 1000 1200.2 1120.8 216 36 – Φ 41 44 – Φ 29 F25
48 1200 1422.4 1335.1 254 44 – Φ 41 44 – Φ 32 F30

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Conclusion

Wafer type butterfly valves are a versatile and efficient solution for regulating and isolating fluid flow in pipelines. Their compact and lightweight design makes them easy to install and operate, without the need for additional flange gaskets. These valves feature a disk-shaped closure element mounted on a shaft, which rotates a quarter turn to control the flow of fluid. Available in various materials such as cast iron, ductile iron, stainless steel, and PVC, they are suitable for a wide range of applications across industries like water treatment, HVAC, chemical processing, and food and beverage production. The design and material versatility ensure these valves can handle different operating conditions, from high-pressure systems to environments requiring high corrosion resistance. Overall, wafer type butterfly valves provide a cost-effective, reliable, and space-saving solution for fluid control in numerous industrial applications.