The electric butterfly valve belongs to one of the electric valves and electric regulating valves. The main connection modes are flange type and wafer type. It is an important execution unit in the field of industrial automation control? Q: The difference between butterfly valve and gate valve?? Answer:? Butterfly valve refers to a kind of valve whose closing part (butterfly plate) is a disc, which rotates around the valve shaft to open and close. It mainly plays the role of cutting off and throttling on the pipeline. The opening and closing part of butterfly valve is a disc shaped butterfly plate, which rotates around its own axis in the valve body to achieve the purpose of opening and closing or adjustment.

What are pneumatic butterfly valves
In general, pneumatic butterfly valves are suitable for use at room temperature, outdoor high temperature, high dust amplitude and various disaster sites, and can also be used in flood situations. But it is worth noting whether it can be used for a long time under heavy water and humid air with strong acidity. Acid rain, salt mist and various chemical dusts are not suitable for use.
Under normal conditions, the surrounding temperature needs to be controlled at 20-40 degrees, and the pneumatic butterfly valve has a good working principle. It is resistant to high pressure, dust and corrosion, and has good compression resistance, reaching 25 kPa. The appearance is very shiny, streamlined, and dust-proof and bacteria resistant. The thermal expansion and contraction as well as the change of indoor temperature difference are also quite good, and the device method is easy to operate. The epoxy coating of the pneumatic butterfly valve can well dispose of the input water, bury the pipeline, and avoid the corrosion of various heavy metal components in the water on the inner wall of the pipeline. At the same time, the service life is also greatly enhanced.
Some usages and precautions of stainless steel pneumatic butterfly valve
Under normal conditions, stainless steel pneumatic butterfly valves can be used at room temperature even in outdoor high temperature, dust or acid rain and salt fog, and can also be used in case of flood and fire. But it is worth noting that it is not suitable for long-term use under heavy water and humid air with strong acidity. In addition, the stainless steel pneumatic butterfly valve needs to be coated with an effective chemical isolation belt to have a long-term life in such an environment as acid rain and salt spray.
Under normal circumstances, the outdoor temperature can be controlled above 20 degrees and below 40 degrees for a long time. And the stainless steel pneumatic butterfly valve is excellent in working mechanism. It is resistant to high pressure, dust and corrosion, and has excellent compression resistance, which can reach 25kPa. The stainless steel pneumatic butterfly valve has a first-class streamline appearance and lubrication, and is also good at dust and bacteria prevention. The thermal expansion and contraction as well as the change of indoor temperature difference are also quite good. At the same time, the device is complete and easy to complete through the instruction book. The surface of stainless steel pneumatic butterfly valve needs to use epoxy coating to effectively avoid oxidation, and the acidity of output water can prevent corrosion.