Wafer Soft Seal Butterfly Valve
The thickness of the electric wafer butterfly valve is thinner than that of the flange butterfly valve. There are no flanges at both ends of the valve body, only a few guide bolt holes. The valve is connected to the flange at the pipe end with a set of bolts/nuts, which is generally applicable Suitable for places with narrow space or restricted pipelines. The advantage is that it is easier to disassemble, the valve cost is lower, and it takes up less space. However, the disadvantage is that if there is a problem with one sealing surface, both sealing surfaces have to be disassembled!
At present, as a component used to realize the on-off and flow control of pipeline systems, soft-seal butterfly valves have been widely used in many fields such as petroleum, chemical industry, metallurgy, hydropower, etc. In the known butterfly valve technology, its sealing form mostly adopts a sealing structure, and the sealing material is rubber, polytetrafluoroethylene, etc. Due to the limitation of structural characteristics, it is not suitable for industries such as high temperature resistance, high pressure resistance, corrosion resistance, and wear resistance. A relatively advanced butterfly valve is a three-eccentric metal seal butterfly valve. The valve body and valve seat are connected components, and the valve seat sealing surface layer is welded with heat-resistant and corrosion-resistant alloy materials. The multi-layer soft stacking seal ring is fixed on the valve plate. Compared with the traditional butterfly valve, this butterfly valve has the advantages of high temperature resistance, easy operation, no friction when opening and closing, and the seal is compensated as the torque of the transmission mechanism increases when closing, which improves the sealing performance of the butterfly valve and prolongs its service life.
There are flanges at both ends of the electric flange butterfly valve body, which are connected to the pipeline flange. The sealing performance is more reliable than that of the wafer butterfly valve. It is generally used in places with larger diameters or higher pressures, but the cost is relatively low.
Before installing the wafer butterfly valve, it must be laid flat first. Remember not to bump it at will. After pulling it to the installation length during installation, it is not allowed to design the on-site pipeline without special permission. Disassemble the wafer butterfly valve at will, this is what we need to know before installation. At the same time, everyone also needs to know that the wafer butterfly valve can be installed in any position, but after the wafer butterfly valve is installed, it is necessary to lay the butterfly valve along the line and make a bracket for the wafer butterfly valve. Once the bracket is made, it is used It is strictly prohibited to remove the bracket during this time.
Industry application
Structure Principle Of Butterfly Valve
Butterfly valve (also known as flap valve) is a regulating valve with a circular valve disc or disc as the closing part. It is mainly composed of a valve body, a valve stem, a butterfly plate and a sealing ring. The valve body is cylindrical, with short axial length and built-in butterfly plate. The butterfly plate of the butterfly valve is installed in the diameter direction of the pipe. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, and the rotation angle is between 0° and 90°. When it rotates to 90°, the valve is fully open.
Product Display
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