What is the difference between pneumatic butterfly valve and electric butterfly valve?
First of all, the difference between the two mainly lies in the valve body. The pneumatic butterfly valve uses a straight through single seat ball valve body, while the pneumatic electric butterfly valve uses a straight through double seat ball valve body. Two different valve bodies will also lead to different performance, functions and parameters of the two control valves. Pneumatic butterfly valve: top structure. Since single seat ball valve body is adopted, there is only one valve seat, i.e. hemispherical valve.
Therefore, the valve body is compact, the flow channel is S-streamlined, the pressure drop loss is small, the flow is large, the adjustable range is large, and the flow characteristic accuracy is high. Moreover, the guide part of the valve core has a large area and strong seismic performance. However, because it is a single seat, it is not suitable for the environment with medium particle size and easy blockage or high pressure difference. It is widely used in building construction and general industrial clean water environment.
Pneumatic electric butterfly valve: double seat ball valve body is adopted. There is an additional flanged port at the bottom of the valve body. This is a double seat. It is easier to maintain than a single seat. The structure is suitable for high differential pressure environment, and is easy to disassemble and block. Medium. Generally speaking, it is suitable for good control under high reliability, high pressure, high differential pressure and process conditions, under which the fluid medium is easy to block the slurry.
