Electrically adjustable butterfly valve detailed description of Butterfly valve

also known as a flap valve, which consists of the valve plate of the valve body, the valve shaft and seal packing, bearings and other components. Operating temperature and pressure by the use of media, the butterfly valve is divided into butterfly valve at room temperature (20 to 450 ° C), low temperature butterfly valve butterfly valve (200 to 40 ° C) and high temperature (450 to 600 ° C and 600 to 850 ° C), high pressure butterfly classes. Mode of action, the butterfly valve can be divided into type regulator, cut-off and adjustment cut-off three categories. The valve plate outline, butterfly valve can be divided into the butterfly valve of the the traditional contour valve plate butterfly and dynamic contour of the valve plate. Butterfly valve features are as follows.
1 large flow capacity, adjustable ratio, low pressure drop. Butterfly valve flow resistance is small, the manufacture of large diameter butterfly valve. Its flow capacity, approximately the same diameter l.5 to 2 times of the control valve. Traditional contour of the valve plate butterfly valve, adjustable ratio of 33:1, dynamic contour butterfly valve plate, adjustable ratio of 100:1.
2 flow characteristics of the corner 0-70 ° (usually butterfly valve angle 0 ~ 60 °) within the approximate equal percentage characteristics. Exceeds a predetermined rotation angle, the control valve will be unstable.
Control valve gas open gas off easy to replace, simply butterfly valve plate rotation 70 °, and other key valve shaft
Key pin can be fixed. The executive body of the butterfly valve is usually positive acting actuator.
4 simple flow path, small flow resistance, can be used for large-diameter, high flow, low dropout applications, fluid control applies to the slurry suspended solids and granular media.
The soft sealing method can be used to achieve a tight seal on the application for the nuclear industry.3 way air valve
6 can be coated or lined anti-corrosion, corrosive medium fluid control.
7. Diameter butterfly valve, push for large output torque, can be used long actuators or piston implementing agencies.
8 small size, light weight, compact structure, the manufacturing process is simple, low price.shut off solenoid valve
9 in addition to the valve body and the valve plate material, low temperature butterfly valve structure at room temperature and high temperature butterfly valve butterfly valve. Long-necked take over the control valve similar to other low temperature cryogenic butterfly valve actuator and valve body. High pressure butterfly valve be made of forged steel, and low torque valve plate, similar to room temperature butterfly valve.
10 through the valve plate-shaped design, to improve the allocation of the flow path resistance, to reduce the required push torque. For example, using the dynamic contour valve plate can be in the range of 0-90 ° equal percentage flow characteristic.mini solenoid valve