Customer Service Hotline: +86-577-86910577
Email: nini@futaivalves.com
Working Principle
The working principle of Flange Pneumatic Butterfly Valve is: when the pressure of air source is input into the cylinder of pneumatic actuator, it pushes the piston to move, and then drives the valve stem and butterfly plate to rotate, so as to achieve the opening, closing or regulating control of the valve. The pneumatic actuator usually includes cylinder, piston, valve and control elements, etc. By controlling the pressure and flow of the gas source, the rotating angle and position of the butterfly plate can be precisely controlled.
Product features
Pneumatic drive: It is driven by pneumatic actuator, which has the advantages of fast response speed, large driving torque and easy operation.
Excellent sealing performance: the butterfly valve body usually adopts metal hard seal or elastic seal structure, reliable sealing performance, long service life.
Good adjustment performance: the butterfly plate has a wiping effect during the rotation process, which can effectively remove the impurities in the medium and keep the pipeline unobstructed. At the same time, by adjusting the rotating angle of the butterfly plate, precise flow adjustment can be achieved.
Compact structure: the overall design is compact and reasonable, occupies little space, and is easy to install and maintain.
Wide range of application: it is suitable for pipeline systems conveying water, oil, gas and other media, especially suitable for occasions with high requirements for sealing performance and adjustment performance.
Technical Specifications
Technical specifications for Flange Pneumatic Butterfly Valves may vary depending on the manufacturer and product model, but typically include the following:
Size range: A wide range of valve sizes are available to meet the needs of different piping systems.
Pressure Rating: Comply with the pressure rating requirements specified in the relevant standards to ensure the safe use of the valve under different pressure conditions.
Connection: flange connection is adopted for easy connection and disassembly with piping system.
Material selection: the valve body, valve plate, valve seat and other key components can be made of stainless steel, alloy steel and other corrosion-resistant materials to meet the needs of different media transport.
Driving mode: the pneumatic actuator can be configured with different driving modes and control elements according to the actual demand, in order to realise remote control and automatic operation.

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