D671 Pneumatic Butterfly Valve

1. The pneumatic butterfly valve is a pneumatic valve that uses a round butterfly plate that rotates with the valve cutter to do the opening and closing to realize the enabling action. It is mainly used as a cut-off valve, but can also be designed to have the function of regulating or section valve and regulating.

2. The butterfly valve is simple in structure, small in size and light in weight, and consists of only a few parts. Moreover, it can be opened and closed quickly by rotating only 90°, which is simple to operate, while this electric valve has good fluid control characteristics. When the butterfly valve is in the fully open position, the thickness of the butterfly plate is the single resistance when the medium flows through the valve body, so the pressure drop generated through the valve is very small, so it has good flow control characteristics.
3. The butterfly valve has two types of seal, the elastic seal, and the metal seal. In a resilient seal valve, the seal can be set into the body or attached to the perimeter of the butterfly plate.

4. If a butterfly valve is required for use as flow control, the main thing is to select the correct size and type of valve. The structural principle of the butterfly valve is particularly 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 are also used in cooling water systems in thermal power stations.