What are the advantages and disadvantages of butterfly valves

What is a butterfly valve:
The butterfly valve is a baffle valve, usually used for flow regulation and cutoff in low-pressure pipeline systems. The valve structure is straightforward, mainly composed of the valve body, valve stem, butterfly plate, and sealing ring. It is also very simple to operate. The valve stem drives the butterfly plate. If it is rotated 90°, it can complete one opening and closing. By changing the deflection angle of the butterfly plate, the flow rate of the medium can be controlled.

Everything has two sides. The advantages of butterfly valves make them widely used. However, butterfly valves also have some defects due to their structure. The following is an analysis of the advantages and disadvantages of butterfly valves.

Advantages of butterfly valve:
1. Opening and closing are convenient, fast, labor-saving, have small fluid resistance, and can be operated frequently.
2. Simple structure, small size, and lightweight.
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.

Disadvantages of butterfly valve:
1. The operating pressure and operating temperature range are small.
2. Poor sealing.