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Flanged Butterfly Valve DN50-DN2400 - Ductile Iron & PTFE Seat from China Suppliers & Factory
Product Specification
| Product name | Butterfly valve | Body/Disc Material | Ductile Iron |
| Type | Flanged | Shaft | SS304/SS316 |
| Size | DN50-DN2400 | Seal | PTFE |
| Operation | Handle/Worm gear/Electric/Hydraulic/Peneumatic | Standard | DIN/ANSI/GOST/JIS/BS |
Product Description
Flange-connected butterfly valves stand out as reliable fluid control solutions, distinguished by their flange-integrated structure that ensures secure pipeline attachment. Their core design features a valve body with integral flanges, a rotating disc, a central shaft, and a sealing assembly—all engineered for seamless integration and leak-proof performance. The flanges, drilled with bolt holes, enable direct connection to pipeline flanges via fasteners, eliminating the need for extra adapters and enhancing structural stability.
Material selection is tailored to operational demands: carbon steel bodies suit general industrial use, stainless steel variants resist corrosion for chemical or marine applications, and alloy steel models handle high temperatures in power plants. The disc and sealing components often adopt PTFE or EPDM for soft sealing, while metal-to-metal hard seals cater to high-pressure scenarios, ensuring tight closure even under extreme conditions.
These valves excel in industries requiring robust connections: oil and gas pipelines leverage their pressure resistance, water treatment plants benefit from their easy maintenance, and chemical processing facilities rely on their corrosion resistance. They also find use in HVAC systems and industrial boilers, where flange connections simplify installation and replacement.
Operation modes range from manual handwheels for small-scale setups to pneumatic or electric actuators for large industrial systems. Automated versions enable remote control and precise flow adjustment, reducing downtime and improving operational efficiency in complex pipelines.
Frequently Asked Questions
What are the size options and standards for these flange-connected butterfly valves?
These butterfly valves are available in sizes ranging from DN50 to DN2400. They are designed to meet international standards including DIN, ANSI, GOST, JIS, and BS, ensuring compatibility with global piping systems.
What materials are used in the construction of the valve body and seal?
The valve body and disc are manufactured from Ductile Iron, with carbon steel, stainless steel, and alloy steel variants available to suit specific operational needs. The sealing assembly uses PTFE or EPDM for soft sealing, and metal-to-metal hard seals for high-pressure scenarios.
What operation modes are supported for these butterfly valves?
The valves support multiple operation modes, including manual Handle, Worm gear, Electric, Hydraulic, and Pneumatic actuators. This allows for both manual control in small setups and automated, remote control in complex industrial pipelines.
Which industries benefit most from flange-connected butterfly valves?
These valves are highly utilized in oil and gas pipelines (for pressure resistance), water treatment plants (for easy maintenance), chemical processing facilities (for corrosion resistance), as well as HVAC systems and industrial boilers.
Why is the flanged connection design advantageous?
The flange-integrated structure allows direct connection to pipeline flanges using fasteners. This design eliminates the need for extra adapters, ensures a secure and leak-proof attachment, and significantly enhances the structural stability of the installation.