For electric butterfly valve, there are mainly two types. One is on-off switch type and the other intelligent type. The working principle is that: match butterfly valve with the DSR actuators, input control signals and single-phase-power supply, so that the electric butterfly valve’s operation can be controlled.

The electric butterfly valve owns a very good performance by having small volume but large flow capacity, reliable sealing performance and simple matching. The electric butterfly valves are widely used in light industry, petroleum, water treatment, paper manufacturing, chemical, electric power and many other industrial automatic control systems.