High power electric actuator GRT*0 applies to all occasions of rotation ranged ***0°. Control signal including triple point signal(GRT*****6), continuous signal(GRT*****6) and double point signal(GRT*****5).The manual/auto switch make installation and routine maintenance easier.Valve position shown ***0°on the body by valve position indicator.Close regulation of valve position by standard adjustable cam.Two shaft end output torque of GRT*0 is optional.Feedback signal for valve position is optional(4~*0mA).Strong component ensure long life of equipment.Installation is simple and convenient.Can use limit cam to adjust the flow of strong/small wind.Apply to drive large diameter air butterfly valve, hot air butterfly valve, fuel oil valve.The hot air of butterfly valve can up to **0°C.Other special opearting time can be customized according to comstomer's requests.