Pneumatic flange hard seal butterfly valve

Pneumatic flange hard seal butterfly valveThe main advantages of the pneumatic disc valve include simple structure, small size, light weight, and low cost. This feature is particularly prominent when installed in high-altitude tunnels. It is easy to operate through a two position five way solenoid valve control and can also adjust the flow medium. The fluid resistance is small, and the effective flow area of the pneumatic disc valve with a medium to large diameter is large when fully opened. The opening and closing are quick and labor-saving, and the disc can be opened and closed by rotating the disc lever 90 degrees. Due to the nearly equal force of the disc lever on both sides of the shaft, the torque direction is opposite, resulting in a small opening and closing torque. Good sealing can be achieved under low pressure. The sealing materials of the disc valve include nitrile rubber, fluororubber, edible rubber, and PTFE lining, which have good sealing performance. The hard sealed disc valve is a soft hard laminated metal plate with the advantages of metal hard sealing and elastic sealing, and has excellent sealing performance at low temperatures.

Pneumatic flange hard seal butterfly valveStructural working principle applicable to environmental analysis

The butterfly plate of the pneumatic hard seal butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical passage of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis at an angle between 0 ° and 90 °. When it rotates to 90 °, the valve is fully open.
Pneumatic hard seal butterfly valve has a simple structure, small volume, and light weight, consisting of only a few parts. And it only needs to rotate 90 ° to quickly open and close, with simple operation. At the same time, this electric valve has good fluid control characteristics. When the butterfly valve is in the * open position, the thickness of the butterfly plate is the resistance of the medium flowing through the valve body, so the pressure drop generated by this valve is very small, which has good flow control characteristics. Butterfly valves have two sealing types: elastic sealing and metal sealing. Elastic sealing valve, the sealing ring can be embedded on the valve body or attached around the butterfly plate.
If butterfly valves are required for flow control, the main thing is to choose the correct size and type of valve. The structural principle of butterfly valves 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 also in the cooling water system of thermal power plants.

working principle
Pneumatic hard seal butterfly valve is a pneumatic valve that uses a circular butterfly plate that rotates with the valve to achieve opening and closing, mainly used as a block valve to achieve activation action. It can also be designed to have the function of regulating or regulating both section valves. Currently, butterfly valves are increasingly used in low-pressure large and medium diameter pipelines.

advantage

The structure is simple, the volume is small, the weight is light, and the cost is low. The pneumatic hard seal butterfly valve is particularly prominent in this feature. It is installed in high-altitude tunnels and is easy to operate through a two position five way solenoid valve control. It can also adjust the flow medium. The fluid resistance is small, and the effective flow area of the pneumatic disc valve with a medium to large diameter is large when fully opened. The opening and closing are quick and labor-saving, and the disc can be opened and closed by rotating the disc lever 90 degrees. Due to the nearly equal force of the disc lever on both sides of the shaft, the torque direction is opposite, resulting in a small opening and closing torque. Good sealing can be achieved under low pressure. The sealing materials of the disc valve include nitrile rubber, fluororubber, edible rubber, and PTFE lining, which have good sealing performance. The hard sealed disc valve is a soft hard laminated metal plate with the advantages of metal hard sealing and elastic sealing, and has excellent sealing performance at low temperatures.

Working principle and applicable environment

The butterfly plate of the pneumatic hard seal butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical passage of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis at an angle between 0 ° and 90 °. When it rotates to 90 °, the valve is fully open. Pneumatic hard seal butterfly valve has a simple structure, small volume, and light weight, consisting of only a few parts. And it only needs to rotate 90 ° to quickly open and close, with simple operation. At the same time, this electric valve has good fluid control characteristics. When the butterfly valve is in the * open position, the thickness of the butterfly plate is the resistance of the medium flowing through the valve body, so the pressure drop generated by this valve is very small, which has good flow control characteristics. Butterfly valves have two sealing types: elastic sealing and metal sealing. Elastic sealing valve, the sealing ring can be embedded on the valve body or attached around the butterfly plate. Valves with metal seals generally have a longer lifespan than those with elastic seals, but it is difficult to achieve * sealing. Metal seals can adapt to higher operating temperatures, while elastic seals have the drawback of being limited by temperature.