The working principle of pneumatic butterfly valve
Jan 21, 2022| The working principle of pneumatic butterfly valve
The pneumatic butterfly valve uses a circular butterfly plate that rotates with the valve to open and close, and the pneumatic valve that realizes the activation action is mainly used as a shut-off valve, and can also be designed to have the function of adjustment or segment valve and adjustment. Increasing use on medium diameter pipes.
The butterfly valve is simple in structure, small in size and light in weight, and only consists of a few parts. And it only needs to rotate 90° to open and close quickly, the operation is simple, and the electric valve has good fluid control characteristics. When the butterfly valve is in the fully open position, the thickness of the disc is the single resistance when the medium flows through the valve body, so the pressure drop generated by the valve
It is very small, so it has better flow control characteristics. Butterfly valves have two types of seals: elastic seal and metal seal. Elastic sealing valve, the sealing ring can be inlaid on the valve body or attached to the periphery of the disc.
If the butterfly valve is required to be used as flow control, the main thing is to correctly select the size and type of the valve. The structure principle of the butterfly valve is especially 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 cooling water systems in thermal power plants.