In the cylindrical channel of the valve body, disc-shaped rotation of the rotary shaft of the throttle valve angle 0 ° ~ 90 ° rotation 90 °, the approval of the valve is fully opened state.
Butterfly valve simple structure, small size, light weight, only a few parts. A full 90-degree rotation to quickly open and close, easy to use, but also has good fluid control valve function. The throttle valve is in the fully open position, when the resistance of the medium flows through the valve, butterfly plate thickness, therefore, through the valve on the pressure drop is small, it has a better control performance. Sealing elastic sealing and metal sealing butterfly valve two. Resilient sealing valves, the sealing member can be attached to the body or the circumference of the disc.steam solenoid valves
The steel gate elastic valve long life, but very difficult to completely seal. Be able to adapt to metal sealing defects of a higher operating temperature, the elastic seal member temperature limit.
When the throttle valve is used to control the flow, the most important is to choose the appropriate size and type of valve. The structural principle of the butterfly valve is particularly suitable for the production of large diameter valves. Butterfly valves are widely used in not only in the oil, gas, chemical, water treatment and other general industrial and thermal power plant cooling water system.
Common wafer type butterfly valve flange butterfly valve and throttle two. The wafer with a rivet connection between two pipe flanges flange throttle valve with the valve flange connection at both ends of the pipe flange bolts on the flange.pneumatic hand valve
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