Butterfly valve disc is installed in the direction of the diameter of the pipe

Within the cylindrical passage in the valve body, disc-shaped butterfly plate around the axis of rotation, the rotation angle is between 0 ° ~ 90 ° rotation to 90 °, the valve is fully opened state licensing.air cylinder manufacturers
Butterfly valve simple structure, small size, light weight, only a few parts. And just rotate 90 ° to quickly open and close, easy to operate, while the fluid control valve has good characteristics. The butterfly valve is in the fully open position, the the butterfly plate thickness is only when the resistance of the medium flows through the valve body, so the pressure drop through the valve is small, it has a better flow control characteristics. Two kinds of sealed type bomb seal and metal sealing butterfly valve. The elastic sealing valves, seals can be mounted on the body or attached to the periphery of the disc.
Metal seal valve than the elastic sealing valve long life, but very difficult to completely seal. The metal seal to be able to adapt to the higher operating temperature, the elastic seal having a temperature limit of a defect.
If the butterfly valve as the flow control is used, the principal is the correct choice of the size and type of valve. Butterfly valve structure principle is particularly suitable for the production of large diameter valves. Butterfly valves are widely used not only in oil, gas, chemical, water treatment and other general industrial, but also used in thermal power plant cooling water system.
Common butterfly valve wafer type butterfly valve and flange type butterfly valve two. Wafer type butterfly valve with studs valve connected between two pipe flanges, flange type butterfly valve is a valve with a flange on the valve flange connection at both ends of the pipe flange bolts.pilot valves