3810R electric rotary electronic actuator is 220V AC single-phase power as a driving power, accept from the regulator control signals (DC4 ~ 20mA or room DC1 ~ 5V), to achieve the pre-angular displacement (0 ° to 90 °) movement a new type of actuator. This series actuators are used to adjust the valve actuator, almost with a variety of actions required transformation function, and valve opening signal function of the control valve and manual functions. Therefore, power generation, metallurgy, petrochemical, light industry and environmental protection should be in the industrial sector.