What are the characteristics of pneumatic butterfly valve

by:Lianke Valve     2022-04-26
Pneumatic butterfly valve is composed of pneumatic actuator and butterfly valve. It is a kind of regulating valve with simple structure. Butterfly valve that can be used for on-off control of low-pressure pipeline medium means that the closing member (disc or butterfly plate) is a disc, which surrounds the valve shaft. A valve that is turned to open and close. Pneumatic butterfly valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. It mainly plays the role of cutting off and throttling on the pipeline. The butterfly valve opening and closing part is a disc-shaped butterfly plate, which rotates around its own axis in the valve body to achieve the purpose of opening and closing or adjustment. Pneumatic butterfly valve features: 1. Small and light, easy to disassemble and maintain, and can be installed in any position. 2. The structure is simple and compact, the operating torque is small, and the 90° rotation can be opened quickly. 3. The flow characteristics tend to be straight, and the adjustment performance is good. 4. The connection between the butterfly plate and the valve stem adopts a pin-free structure, which overcomes the possible internal leakage point. 5. The outer circle of the butterfly plate adopts a spherical shape, which improves the sealing performance and prolongs the service life of the valve. It still maintains zero leakage when it is opened and closed under pressure for more than 50,000 times. 6. The seals can be replaced, and the sealing is reliable and can achieve bidirectional sealing. 7. The butterfly plate can be sprayed with coating according to user requirements, such as nylon or PTFE. 8. The valve can be designed as flange connection and wafer connection.
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