Description of the installation method of the butterfly plate of the vacuum butterfly valve

The butterfly plate of the vacuum butterfly valve is installed in the diameter direction of the pipe. In the cylindrical passage of the valve body, the disc-shaped disc rotates around the axis, and the rotation angle is between 0° and 90°. When the rotation is 90°, the valve is fully open. Its simple structure, small size and light weight consist of only a few parts.

Moreover, it can be quickly opened and closed by rotating 90°, and the operation is simple, and the valve has good fluid control characteristics. When it is in the open position, the thickness of the disc is the resistance of the medium flowing through the valve body, so the pressure drop generated by the valve is small, so it has better flow control characteristics.

It has two sealing types: elastic seal and metal seal. Elastomeric sealing valve, the sealing ring can be mounted on the valve body or attached to the periphery of the disc. Valves with metal seals generally have a longer life than elastomerically sealed valves, but are difficult to seal.