Butterfly valve advantages and disadvantages

Advantage
1. Opening and closing is convenient, fast, labor-saving, has small fluid resistance, and can be operated frequently.
2. It has simple structure, small dimensions, short structural length, small volume and light weight, and is suitable for large-diameter valves.
3. It can transport mud with minimal liquid accumulation at the pipe mouth.
4. Under low pressure, good sealing can be achieved.
5. Good adjustment performance.
6. When fully open, the effective circulation area of the valve seat channel is larger and the fluid resistance is smaller.
7. The opening and closing torque is small. Since the butterfly plates on both sides of the rotating shaft are basically equally affected by the medium and the torque is generated in opposite directions, opening and closing is less labor-intensive.
8. The sealing surface material is generally made of rubber or plastic, so the low-pressure sealing performance is good.
9. Easy to install.
10. The operation is flexible and labor-saving, and manual, electric, pneumatic, and hydraulic modes can be selected.

Disadvantages
1. The operating pressure and operating temperature range are small.
2. Poor sealing.