The Advantages and disadvantages of butterfly valve 

1. Advantages of butterfly valve
1. It is convenient and quick to open and close, labor-saving, low fluid resistance, and can be operated frequently.

2. Simple structure, small size and light weight.

3. Mud can be transported, with the least accumulation of liquid at the pipe mouth.

4. Under low pressure, good sealing can be achieved.

5. Good adjustment performance.

2. Disadvantages of butterfly valve
1. The working pressure and working temperature range are small.

2. Poor airtightness.