Flange Butterfly Valve – China Manufacturer & Supplier

Premium Quality Flange Butterfly Valves from China

As a professional China flange butterfly valve manufacturer, Yuanjd Valve specializes in the design, production, and supply of high-performance flanged butterfly valves for a wide range of industrial applications. Our flanged butterfly valves are engineered to provide reliable flow control and shut-off performance in high-pressure, high-temperature, and demanding service conditions.

Unlike wafer or lug-type butterfly valves, flanged butterfly valves feature integral flanges on the valve body that bolt directly to pipeline flanges using separate bolts on each side. This design provides a stronger, more durable connection, making flanged butterfly valves the preferred choice for high-pressure systems and applications where pipeline integrity is critical. The flanged connection also allows for easier maintenance, as one side of the piping system can be disconnected without affecting the other. For butterfly valves larger than 24 inches, the flanged end is strongly recommended for extended service life.

Manufactured in strict accordance with API 609, EN 593, ISO 10631, and MSS SP-68 standards, our flanged butterfly valves are available in a wide range of configurations. Face-to-face dimensions comply with EN 558 Series 20 and API 609, while flange connections meet ASME B16.5, EN 1092, and JIS B2220 standards.

Product Features & Technical Specifications

Our flanged butterfly valves offer the following key features:

• Design Standards: API 609, EN 593, ISO 10631, MSS SP-68

• Face-to-Face Dimensions: EN 558 Series 20, API 609

• Flange Connections: ASME B16.5, EN 1092, JIS B2220

• Body Materials: Cast carbon steel (WCB, LCB, WC6, WC9), ductile iron, stainless steel (CF8, CF8M, CF3, CF3M)

• Disc Materials: Stainless steel, ductile iron coated, aluminum bronze

• Seat Options: Resilient seated (EPDM, NBR, PTFE, Viton) or metal-seated for high-temperature applications

• Operation: Manual lever, worm gear operator, electric actuator, pneumatic actuator, hydraulic actuator

• Pressure Range: PN10, PN16, PN25, PN40 (up to PN100 available), Class 150 to Class 600

• Size Range: DN50 to DN3200 (NPS 2″ to 120″)

• Temperature Range: -40°C to +450°C (depending on seat material)

Applications & Industries

Flanged butterfly valves are widely used across multiple industrial sectors:

• Oil & Gas – midstream and downstream production, pipeline isolation

• Chemical & Petrochemical – corrosive media handling, process control

• Power Generation – high-temperature steam pipelines, cooling water systems

• Water & Wastewater Treatment – potable water distribution, sewage systems

• Food & Beverage – sanitary applications with 316L stainless steel options

• HVAC & Building Services – heating and cooling systems, fire-fighting

Why Choose Yuanjd Valve as Your China Flange Butterfly Valve Manufacturer?

At Yuanjd Valve, we combine decades of manufacturing expertise with advanced production facilities and rigorous quality control systems. As a leading China flange butterfly valve supplier, we are committed to delivering products that meet international quality standards while offering competitive factory-direct pricing.

The global Flanged Butterfly Valve market was valued at approximately USD 3.33 billion in 2024 and is expected to reach USD 5.3 billion by 2035. China remains the world's largest producer of butterfly valves, with leading manufacturers concentrated in specialized industrial clusters that offer advantages in cost, scale, and technological advancement. Yuanjd Valve leverages this ecosystem to provide our global clients with high-quality products at competitive prices, backed by reliable delivery and responsive after-sales support.

Our commitment to excellence is reflected in every stage of production—from raw material selection and precision machining to strict testing and inspection. Each valve undergoes pressure testing in accordance with API 598 and EN 12266 standards before leaving our factory. We hold ISO 9001 certification and our valves are available with CE marking, ensuring compliance with international regulatory requirements.

OEM & Customization Services

We offer comprehensive OEM and customization services, allowing you to specify materials, sizes, pressure ratings, actuation types, coatings, and certifications that precisely match your industrial requirements. Whether you need manual gear operation, electric actuation, or pneumatic control, our engineering team can deliver tailored solutions for your specific project needs.

Contact Us

Partner with a reliable flange butterfly valve manufacturer in China. Contact Yuanjd Valve today for product inquiries, technical support, or to request a quote. Our experienced team is ready to assist you with professional guidance and prompt service.