Water three-way control valves, electric actuators by a straight stroke or pneumatic actuators and three-body composition, accepts 0 to 10 or 4 ~ 20mA.DC signal to drive the valve open and close. Wherein the three-way mixing valve for mixing two fluids into the third fluid, the temperature of the same or a different fluid, the fluid mixture to the same temperature. A fluid way diverting valve into two streams.