Working Principles of Pneumatic Butterfly Valves
The pneumatic butterfly valve is opened and closed with the circular butterfly plate rotating with the valve. In order to realize the action start of the pneumatic valve, we mainly use it as a truncation valve. It can also be designed to have the function of regulating the segment valve. At present, the disc valve is used more and more in the low-pressure large-diameter pipeline.
The main advantages of the butterfly valve are as follows: simple structure, small volume, light weight and low cost. The characteristics of the pneumatic disc valve are especially significant. It is installed in the high-altitude tunnel. After two five-way solenoid valve control, the operation is convenient. We can also adjust the flow medium. The fluid resistance is small. The large diameter pneumatic disc valve is fully open. The effective flow area is large, and the opening and closing are fast. The disc rotation with 90 degrees can complete the opening and closing. As the medium force of the rotating shaft on both sides of the plate hand is close to equal, the torque generates in the opposite direction. The opening and closing torque are small. Low pressure can achieve a good seal. The sealing materials of butterfly valves are butadiene rubber, fluorine rubber, and edible rubber. Lined with tetrafluoride and good sealing performance, the hard seal butterfly valve is a hard and soft laminated metal sheet. It has the advantages of metal hard seal and elastic seal, whether it has excellent sealing performance at low temperatures.
The analysis of the working principle of the butterfly valve structures applicable to environmental
The butterfly valve disc is installed in the pipe diameter direction. In the cylindrical channel of the butterfly valve body, the disc rotates around the axis, and the rotation angle is between 0-90 degrees. The valve is fully open when it rotates at 90 degrees.
The butterfly valve has a simple structure, small size and light weight. It is composed of only a few parts. And only the valve needs to rotate 90°, it can be quickly opened and closed. The operation is simple. The electric valve has good fluid control. When the butterfly valve is in the fully open position, the thickness of the butterfly plate is the only resistance when the medium flows through the valve body. Therefore, the pressure drop generated by the valve is small, and it has better flow control. The butterfly valve has two sealing types: flexible seal butterfly valves and metal seal butterfly valves. The seal ring of flexible seal valves can be laid on the body or attached to the disc around.
The valve with a metal seal is generally longer than the valve with an elastic seal, but it is difficult to achieve a complete seal. The metal seal can adapt to the higher working temperature, but the elastic seal has a temperature limitation defect.
If the butterfly valve is required to be used as a flow control, the main thing is to choose the correct size and type of valve. The structure principle of the butterfly valve is especially suitable for the production of large-diameter valves. The butterfly valve is not only widely used in petroleum, gas, chemical, water treatment and other general industry, but also used in the cooling water system of the thermal power station.
The main advantages of the butterfly valve are as follows: simple structure, small volume, light weight and low cost. The characteristics of the pneumatic disc valve are especially significant. It is installed in the high-altitude tunnel. After two five-way solenoid valve control, the operation is convenient. We can also adjust the flow medium. The fluid resistance is small. The large diameter pneumatic disc valve is fully open. The effective flow area is large, and the opening and closing are fast. The disc rotation with 90 degrees can complete the opening and closing. As the medium force of the rotating shaft on both sides of the plate hand is close to equal, the torque generates in the opposite direction. The opening and closing torque are small. Low pressure can achieve a good seal. The sealing materials of butterfly valves are butadiene rubber, fluorine rubber, and edible rubber. Lined with tetrafluoride and good sealing performance, the hard seal butterfly valve is a hard and soft laminated metal sheet. It has the advantages of metal hard seal and elastic seal, whether it has excellent sealing performance at low temperatures.
The analysis of the working principle of the butterfly valve structures applicable to environmental
The butterfly valve disc is installed in the pipe diameter direction. In the cylindrical channel of the butterfly valve body, the disc rotates around the axis, and the rotation angle is between 0-90 degrees. The valve is fully open when it rotates at 90 degrees.
The butterfly valve has a simple structure, small size and light weight. It is composed of only a few parts. And only the valve needs to rotate 90°, it can be quickly opened and closed. The operation is simple. The electric valve has good fluid control. When the butterfly valve is in the fully open position, the thickness of the butterfly plate is the only resistance when the medium flows through the valve body. Therefore, the pressure drop generated by the valve is small, and it has better flow control. The butterfly valve has two sealing types: flexible seal butterfly valves and metal seal butterfly valves. The seal ring of flexible seal valves can be laid on the body or attached to the disc around.
The valve with a metal seal is generally longer than the valve with an elastic seal, but it is difficult to achieve a complete seal. The metal seal can adapt to the higher working temperature, but the elastic seal has a temperature limitation defect.
If the butterfly valve is required to be used as a flow control, the main thing is to choose the correct size and type of valve. The structure principle of the butterfly valve is especially suitable for the production of large-diameter valves. The butterfly valve is not only widely used in petroleum, gas, chemical, water treatment and other general industry, but also used in the cooling water system of the thermal power station.
