Electric regulator includes electric regulating butterfly valves, electric regulating ball valve, electric valve, electric control valve, electric single-seat regulating valve, an electric two-seater dampers and electric socket regulator and types, including pneumatic control valve, pneumatic diaphragm regulating valves, pneumatic control valve, pneumatic regulating flange butterfly valve and pneumatic butterfly valve to the clamp type, such as
Electric adjustment butterfly valve, also called the flap valve is a kind of simple structure of the regulator, and actuators are connected, can be used for low pressure pipeline medium switch control, mainly in the line cut off and throttling effect, electric regulating valve opening and closing is a disc plate, disc in the valve body around its own axis rotate 90 degrees, so as to achieve the aim of opening and closing or adjusted, electric adjustment butterfly valve is subdivided into the following categories:
Electric adjustment butterfly valve (size small) : with a small starting torque, flow capacity is big, small flow resistance loss, flexible operation etc.,
Electric adjustment butterfly valves, electric damper: suitable for metallurgy, light industry and other industries of the blast furnace, heating furnace, gas station and other workplace,
NAC electric adjustment butterfly valve: NAC electric adjustment butterfly valves conform to JB/T8528-97 "technical conditions" normal valve electric actuator regulation,

Electric control valve and pneumatic control valve using the difference between
? Electric control valve failure rate is higher than that of the pneumatic control valve.
? Explosion-proof electric regulator if the site requirements, the price also is more expensive
? Electric control valve action time slower than the pneumatic - valve.
? Pneumatic control valve can choose in the case of air failure on or off, and electric control valve can't
? Electric control valve size is bigger than the pneumatic control valve, using pneumatic control valve can save more space

Above is why electric regulator used in the chemical industry is less. The reason for the electric control valve is suitable for medium and stable working condition of a single, so the electric regulating valve in power application field is more, turbine high and low pressure bypass, the extraction electric butterfly valve, high pressure turbine mother tube electric gate, belong to electric control valve, the use of stainless steel valve temperature

Electric valve valve is driven by electricity, mainly consist of electric actuators and all kinds of valves, because of electric valve is easy to use, that is turning on the power supply can run, so model is one of the longest use self-control valve, electric valve is a lot of more phyletic, the commonly used electric control valves, electric ball valves, electric butterfly valves, electric gate valves and electric valve several models, different types of applicable occasions of electric valve is different also, electric regulator can choose different valve structure according to the working condition of the medium and the valve core type, mainly is suitable for the high, the low pressure medium pipeline, do the effect of adjusting the parameters of the pipeline, with modern industrial automation demand is higher and higher, the electric control valve is becoming more and more widely used, choose different material can use all kinds of liquid and gas medium pipeline, electric ball valves and electric butterfly valve is the most widely used range model of electric valve, with different execution mechanism, can realize the two pipe is cut off, and can be used to adjust the linear is not too strict, electric butterfly valve has the wafer and the flange type two kinds of connection mode, more use of atmospheric pressure, large diameter pipelines, electric ball valves and electric butterfly valve using similar, but the pressure is greater than used electric butterfly valve, electric gate valves and electric valve function truncation are in the pipeline, but it is important to note that these two kinds of valve can't be adjust to use, suitable for all kinds of large diameter, high,, the working condition of low pressure of medium,