Corrosion-resistant Design With Versatile Flange Compatibility For Industrial Pipelines
The wafer flange butterfly valve is a high-efficiency flow control solution engineered for industrial applications requiring reliable sealing and robust performance in demanding pipeline systems.
Corrosion-resistant Design With Versatile Flange Compatibility For Industrial Pipelines
The wafer flange butterfly valve is a high-efficiency flow control solution engineered for industrial applications requiring reliable sealing and robust performance in demanding pipeline systems.
Wafer-type butterfly valves are designed to fit between flanges, ensuring accurate alignment with four locating holes. Compatible with multiple international flange standards for reliable sealing and easy installation.
Size: 30"
Pressure Rating: 150LB
ASTM A216 WCB
Durable carbon steel body
ASTM A351 CF8M
Stainless steel for corrosion resistance
Material: SS316
High strength & corrosion resistant
Material: EPDM
Flexible sealing & chemical resistance
Standard: Electric actuator
Other options available on request
The Wafer Flange Butterfly Valve is a high-efficiency flow control solution engineered for industrial applications requiring reliable sealing and robust performance in demanding pipeline systems. Its hybrid wafer-flange design combines the compactness of a wafer valve with flanged end connections, ensuring secure integration with ANSI, DIN, and JIS flanges while minimizing installation space by up to 30% compared to traditional flanged valves. Constructed from ASTM A536 ductile iron or ASTM A351 CF8M stainless steel, with protective coatings like epoxy or PTFE, this valve delivers superior corrosion resistance, making it ideal for industrial flow control in water distribution, oil and gas, and chemical processing systems.
Featuring a quarter-turn mechanism, the wafer flange butterfly valve employs a centrally mounted disc to regulate or isolate the flow of liquids, gases, or slurries. Available in sizes from 2" to 72" (DN50 to DN1800), it supports pressure ratings up to PN25 (ANSI Class 150-300) and temperatures from -20°C to 150°C, with seat options like EPDM for general service or Viton for enhanced chemical compatibility. Compliant with API 609 for design, ASME B16.34 for manufacturing, and ISO 5752 for face-to-face dimensions, it ensures zero-leakage bi-directional sealing per API 598. Certifications including NSF 61 for potable water and ABS for marine applications underscore its reliability in pipeline isolation valve duties across HVAC, wastewater treatment, and petrochemical industries.
The valve’s robust construction, with a one-piece stainless steel stem (SS304 or SS316 options) and pinless disc connection, eliminates leak paths and enhances durability under cyclic loading. Its corrosion resistant valve properties are enhanced by internal and external coatings, resisting rust, chlorides, and abrasive media like slurries, with a service life up to three times longer than uncoated carbon steel valves. The low torque design—typically under 180 Nm for 12" sizes—supports manual levers, gear operators, or pneumatic/electric actuators per ISO 5211, enabling seamless automation in industrial flow control systems. Hydrostatic and air testing per API 598, along with nondestructive evaluations (DPT, MT, UT), confirm tensile strengths above 415 MPa, ensuring performance in high-pressure environments.
Compared to lug or double-flanged butterfly valves, the wafer flange butterfly valve offers a balance of compact design and secure flange connectivity, reducing installation costs and weight by up to 40% while maintaining equivalent shutoff performance. Its streamlined disc profile minimizes pressure drop (Cv values up to 15,000), optimizing flow efficiency in pipeline isolation valve applications. Optional features, such as fire-safe seals per API 607 or extended stems for high-temperature insulation, enhance adaptability for power generation, food processing, and marine systems. The valve’s ability to handle mild corrosives and abrasive fluids, with optional PTFE linings, makes it a sustainable choice for eco-friendly operations requiring minimal maintenance.
Addressing challenges like pipeline corrosion, seat degradation, and complex installation, this high performance butterfly incorporates blowout-proof stems and resilient seats for reliable sealing under differential pressures up to 25 bar. Its compatibility with multiple flange standards ensures global applicability, while coatings like 3LPE or FBE further enhance durability in corrosion resistant valve applications. Whether used for throttling in desalination plants or isolating flow in refinery pipelines, the Wafer Flange Butterfly Valve delivers cost-effective, high-reliability industrial flow control for diverse global operations.
Engineered for robust flow control with versatile flange compatibility and minimal maintenance.
| Organization | Standard | Description |
|---|---|---|
| ANSI | American National Standards Institute | General industrial standards |
| API | American Petroleum Institute | Standards for oil and gas industry |
| ASME | American Society of Mechanical Engineers | Boiler and pressure vessel codes |
| BS | British Standards | UK national standards |
| GB, JB, HG | China Valve Standards | Chinese national and industry standards |
Upstream, midstream, and downstream operations, including drilling, refining, and transportation.
Handling corrosive and hazardous chemicals in various chemical plants.
Steam, water, and fuel systems in thermal, nuclear, and hydroelectric plants.
Municipal water supply, wastewater treatment, and industrial water management.
Heating, ventilation, and air conditioning systems in commercial and industrial buildings.
Sterile and hygienic applications, precise flow control in sensitive industries.
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