1. During installation, the disc should stop at the closed position.
2. The opening position should be determined according to the rotation angle of the disc.
3. Butterfly valves with bypass valves should be opened before opening.
4. The installation should be carried out according to the manufacturer's installation instructions. The heavy-weight butterfly valve should be installed with a solid foundation.
5. The butterfly plate of the butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical passage of the valve body of the butterfly valve, 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 opened.
6. If the butterfly valve is required to be used as a flow control, the main thing is to choose the size and type of the valve correctly. The structural principle of the butterfly valve is especially suitable for making large-diameter valves. Butterfly valves are not only widely used in general industries such as petroleum, gas, chemical, and water treatment, but also in cooling water systems of thermal power stations.
7. Commonly used butterfly valves include wafer-type butterfly valves and flange-type butterfly valves. Wafer type butterfly valve is to connect the valve between the two pipeline flanges with double-headed bolts. Flange type butterfly valve is to have a flange on the valve, and use bolts to connect the two ends of the valve to the pipeline flange.
