The butterfly plate of the clamp type manual butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical channel of the butterfly valve body, the disc shaped butterfly plate rotates around the axis, with a rotation angle between 0 ° -90 °. When the rotation reaches 90 °, the valve is fully open. The butterfly valve has a simple structure, small size, and light weight, and is only composed of a few parts. Moreover, the valve can be quickly opened and closed by rotating it 90 °, with simple operation and excellent fluid control characteristics.

1. Place the butterfly valve between two flanges, paying attention to aligning the eyelets

2. Place the butterfly valve between two flanges, paying attention to aligning the eyelets

3. Weld the flange to the pipeline

4. Weld the flange to the pipeline

5. Fully weld and secure the flange

6. Fully weld and secure the flange

7. Tighten 4 pairs of bolts and nuts, diagonally tighten each other, and adjust the installation position of the valve body

8. Open and close the valve to ensure that the valve plate can open and close freely without getting stuck

9. Tighten the nuts diagonally to complete the installation. After installation, switch them on and off again several times to ensure that the valve is functioning properly.