Valve body structure:

The valve body of flange butterfly valves is usually made by casting or forging processes to ensure that the valve body has sufficient strength and rigidity to withstand the pressure of the medium in the pipeline.

The internal cavity design of the valve body is usually smooth to reduce fluid resistance and turbulence inside the valve body, and improve the flow capacity of the valve.

Butterfly structure:

The butterfly plate is a key component of the flange butterfly valve, which controls the flow of the medium by rotating around its own axis.

Butterfly plates are usually designed in a circular or elliptical shape to reduce friction with the valve seat, improve the sealing performance and service life of the valve.

The material of the butterfly plate can be selected according to different media, such as metal, rubber coating, or polytetrafluoroethylene, to adapt to different working environments.

Valve seat structure:

The valve seat of a flange butterfly valve is usually made of elastic materials such as rubber, polytetrafluoroethylene, etc., to ensure a good seal with the butterfly plate.

The design of the valve seat usually has a certain degree of elastic deformation ability to adapt to the compression of the valve seat by the butterfly plate during rotation, thereby improving the sealing performance.

Flange connection:

The flange butterfly valve is connected to the pipeline through flanges at both ends. The flange connection has the advantages of simple structure, reliable sealing, and easy installation. The standards for flanges usually follow international or national standards such as ANSI, DIN, GB, etc. to ensure compatibility between valves and pipelines.

Drive device:

The driving device of flange butterfly valve usually adopts manual, electric, pneumatic or hydraulic methods to adapt to different control requirements. The design of the driving device usually considers the convenience and reliability of operation to ensure the normal operation and long service life of the valve.

Other features:

Flange butterfly valves typically have a smaller volume and weight, making them easier to install and maintain. The design of valves usually takes into account fluid dynamics principles to reduce fluid resistance and noise. Valves can also undergo anti-corrosion treatment as needed to adapt to harsh working environments.