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Flanged Butterfly Valve with Ductile Iron & PTFE - Reliable China Factory Supplier for DN50-DN2400
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 is the advantage of using flange-connected butterfly valves?
Flange-connected butterfly valves feature an integrated flange structure that allows direct connection to pipeline flanges using fasteners. This design eliminates the need for extra adapters, ensures secure pipeline attachment, and enhances overall structural stability and leak-proof performance.
What size ranges and standards do these butterfly valves support?
These valves are available in sizes ranging from DN50 to DN2400. They conform to various international manufacturing standards, including DIN, ANSI, GOST, JIS, and BS, ensuring compatibility with global piping systems.
Which materials are used for the valve body and sealing components?
The valve bodies are available in carbon steel, stainless steel, and alloy steel to suit different industrial needs. The shaft is made of SS304 or SS316, and the sealing components typically utilize PTFE or EPDM for soft sealing, or metal-to-metal configurations for high-pressure scenarios.
What operation modes are available for these butterfly valves?
They support a wide range of operation methods, including manual handles and worm gears for smaller setups, as well as electric, hydraulic, and pneumatic actuators for automated, remote-controlled industrial systems.
In which industries are these butterfly valves typically applied?
They are widely used in industries requiring robust and secure connections, such as oil and gas pipelines, water treatment plants, chemical processing facilities, HVAC systems, and industrial boilers.
Can these valves handle extreme temperatures and pressures?
Yes, alloy steel body variants combined with metal-to-metal hard seals are specifically engineered to handle high-pressure and high-temperature scenarios, ensuring a tight closure under demanding conditions.