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Big Butterfly Valve

Big Butterfly Valve

Big butterfly valve is a valve specially designed for large-diameter pipeline systems, which aims to efficiently control the flow of various fluids. Its core component is a disc-shaped butterfly plate. Through the rotation of the valve stem, the butterfly plate rotates 90 degrees in the valve body, thereby realizing the opening, closing and flow regulation functions of the valve. Compared with ordinary butterfly valves, big butterfly valves are larger in size and can adapt to larger pipeline diameters and higher flow requirements. They are widely used in various industrial fields and are one of the key equipment to ensure the stable operation of pipeline systems.
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big butterfly valve

The Big Butterfly Valve is a robust and highly efficient valve designed for large-scale industrial applications that require the regulation of high flow rates. Known for its durable design, it is widely used in systems that need reliable shutoff and throttling capabilities, such as large pipelines, water treatment plants, and chemical processing systems. With its ability to handle large volumes of liquids, gases, and slurries, this valve offers a cost-effective solution for controlling flow in demanding environments, ensuring both operational efficiency and safety in the most challenging applications.

Advantages and features

  • Compact structure: Despite its large size, it is compact in design and take up relatively little space. This design makes it possible to install and maintain large pipeline systems in limited space, reducing the space cost and complexity of engineering construction. For example, in large factory workshops or underground pipe galleries with limited space, its compact structure is particularly advantageous.

  • Excellent flow regulation performance: It can accurately control fluid flow. There is a good linear relationship between the rotation angle of the butterfly plate and the fluid flow rate. The operator can achieve precise regulation of the flow rate by controlling the opening of the butterfly plate. This feature is crucial in industrial processes that require strict control of flow, such as material transportation in chemical production and cooling water circulation in the power industry.

big butterfly valve
Technical Parameters

 

Order code Model DN Valve opening angle flow cv value
90° 70°
18240 DFR-01-800 800 68250 34395
18241 DFR-01-900 900 86375 39731
18242 DFR-01-1000 1000 119750 55084
18243 DFR-01-1050 1050 117500 70500
18244 DFR-01-1200 1200 154000 92300
Note: When the valve uses switch control, Cv is selected when it opens at 90°; when the valve uses analog control, Cv is selected when it opens at 70°. The recommended control angle is 25°~70°, and the optimal control angle is 60°~65°.

Applications

 

 

  • Metallurgical industry: In metallurgical enterprises such as steel mills and nonferrous metal smelters, large butterfly valves are used to control the flow of media such as gas, oxygen, and cooling water in blast furnaces, converters, and other equipment. For example, in the blast furnace ironmaking process, large butterfly valves can accurately control the flow of hot air blown into the blast furnace to ensure the smooth progress of the ironmaking reaction.

  • Urban water supply and drainage: In urban water supply and drainage systems, large butterfly valves are used to control the transportation of raw water, the production process of water plants, and the discharge of urban sewage. For example, in urban water plants, large butterfly valves can adjust the amount of raw water entering and the output of treated water to ensure a stable supply of water for urban residents; in sewage treatment plants, large butterfly valves are used to control the collection, treatment, and discharge of sewage to ensure the cleanliness of the urban water environment.

FAQ

 

Q: How does it perform in large-scale industrial applications?
A: It is specifically designed for large-scale industrial applications, providing reliable flow control for high-volume systems. Its robust construction allows it to handle high flow rates and large pipes effectively, making it ideal for industries like water treatment, power generation, and oil and gas. The large valve diameter ensures it can manage significant fluid volumes with ease, while its precision ensures optimal flow regulation in even the most demanding environments.


Q: Is it suitable for handling corrosive or abrasive fluids?
A: Yes, it is highly suitable for handling corrosive or abrasive fluids, as it can be equipped with specialized materials such as stainless steel, rubber linings, or PTFE coatings. These materials offer enhanced resistance to wear, corrosion, and chemical degradation, ensuring that it performs reliably in aggressive fluid environments. This makes it ideal for applications in the chemical, mining, and wastewater industries where harsh conditions are common.


Q: How does it contribute to reducing energy consumption in large systems?
A: It helps reduce energy consumption by providing efficient and precise control over fluid flow. By accurately adjusting the flow rate, it prevents over-pressurization and minimizes energy waste, which is especially important in large systems with high flow volumes.


Q: How easy is it to maintain and service over time?
A: It is designed for ease of maintenance and long-term serviceability. The valve components are made from high-quality materials that resist wear and tear, reducing the need for frequent repairs.

 

 

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