Pneumatic high-temperature ventilation butterfly valve is a regulating device specifically designed for high-temperature media, primarily used for flow regulation and cutting off of high-temperature flue gas, dusty gas, and other media. Its operating temperature can reach up to 950°C, utilizing hard alloy surfacing technology to enhance the valve body's resistance to erosion, and featuring a precise sealing structure to prevent leakage.
Principle of Operation
The pneumatic high-temperature ventilation butterfly valve consists of a pneumatic actuator and a butterfly valve. The pneumatic actuator uses compressed air as its power source, driving the valve rod to rotate, which in turn causes the circular butterfly plate to rotate within the pipeline, altering the cross-sectional area and flow rate of the pipeline to control the fluid. Upon receiving a control signal, the actuator rotates the valve rod, making the butterfly plate turn within the pipeline to achieve flow regulation or cut-off function.
Application Scenario
Pneumatic high-temperature butterfly valves are widely used in metallurgical industry blast furnace gas recovery systems, glass furnace high-temperature flue gas discharge pipelines, and dusty gas treatment units in chemical enterprises, etc., for high-temperature gas conveying systems. Their high-temperature-resistant design and precise sealing system ensure exceptional performance in these high-temperature and corrosive environments.
Structural characteristics
The pneumatic high-temperature ventilation butterfly valve is designed with a modular, split-body structure for quick connection with electric, pneumatic, and other actuators. The valve body features a large area of surfacing weld hard alloy, enhancing its erosion resistance. Additionally, the sealing structure and the precision requirements of its parts are high to prevent leakage. Moreover, its simple structure and easy operation make it suitable for various actuator combinations, offering high operational flexibility and reliability.
