The electric 3-way regulating valve is composed of PSL series and 3810 series linear electric actuator and 3-way regulating valve body. (It can also be equipped with other brands of linear-turn actuator). The electric actuator is an electronic integrated structure with a servo amplifier inside. Input control signal (4-20mADC or 1-5VDC) and power supply can control the valve opening to adjust the pressure, flow, liquid level, temperature and other parameters. The electric 3-way regulating valve has the characteristics of sensitive action, simple connection, large flow, small volume and high adjustment precision. Its control accuracy and performance are significantly improved compared to the DKZ type. The electric 3-way regulating valve has the advantages of high adjustment precision, stable and reliable operation. The electric 3-way combined flow regulating valve is mainly used for mixing two fluids into a third fluid; the electric 3-way split regulating valve is mainly used for dividing one fluid into two fluids. The electric 3-way regulating valve product can replace two single-seat and two-seat regulating valves which are used for switching, and is used for the adjustment and control of liquid, gas, steam and other media.