The structural characteristics and application of pneumatic flange fluorine lined butterfly valves

2022/11/07Browse:216

Introduction:

        The pneumatic flange fluorine lined butterfly valve is composed of a pneumatic actuator and a butterfly valve. Pneumatic flange fluorine lined butterfly valve is a type of pneumatic valve that uses a circular butterfly plate that rotates with the valve stem to achieve opening and closing action. It is mainly used as a shut-off valve, and can also be designed to have the function of regulating or segment valve adjustment. Pneumatic flange fluorine lined butterfly valve is increasingly used in low-pressure large and medium diameter pipelines. Classification of upper ball pneumatic butterfly valves: stainless steel pneumatic butterfly valves, hard sealed pneumatic butterfly valves, soft sealed pneumatic butterfly valves, carbon steel pneumatic butterfly valves

Structural features:

        The butterfly plate of the pneumatic flange fluorine lined butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, with a rotation angle between 0 ° and 90 °. When rotated to 90 °, the valve is in a fully open state. The pneumatic flange lined fluorine butterfly valve has a simple structure, small volume, and light weight, and is only composed of a few parts. And it can be quickly opened and closed by rotating 90 °, with simple operation, and the valve has good fluid control characteristics. When the pneumatic flange fluorine lined butterfly valve is in the fully open position, the thickness of the butterfly plate is the only resistance when the medium flows through the valve body, so the pressure drop generated through the valve is very small, so it has good flow control characteristics. Pneumatic flange fluorine lined butterfly valves have two sealing types: elastic sealing and metal sealing. Elastic sealing valve, the sealing ring can be embedded on the valve body or attached to the periphery of the butterfly plate.

Application:

      If a pneumatic flange lined fluorine butterfly valve is required for flow control, the main thing is to choose the correct size and type of valve. The structural principle of pneumatic flange lined fluorine butterfly valve is particularly suitable for making large-diameter valves. Pneumatic flange lined fluorine butterfly valves are not only widely used in general industries such as petroleum, gas, chemical, and water treatment, but also in cooling water systems of thermal power plants.