electric actuators it is to be appreciated that with the mounting and valve packing arrangement as described above the torque from conventional valve necessary to actuate these ball valves i e open and close the ball valves is significantly reduced this torque reduction permits a significant reduction in the necessary size of the electric motor and permits a more compact arrangement of drive components for actuating the ball valve 1 the electric actuator 60 of this embodiment includes a specific worm drive transmission arrangement which is an important aspect of the present invention resulting from the reduction in torque necessary to actuate the valve as described above the smaller amount of necessary torque permits use of a smaller electric motor 61 and a more compact drive train arrangement with more space efficient components i e a spur and worm gear to turn the ball valve can be utilized thereby reducing the overall space and energy requirements for each respective sized ball valve the electric drive of this embodiment as seen in fig8 includes the electric motor 61 having an electrical connection 62 for receiving power in general the motor 61 drives a reduction ratio transmission as shown although other types of reduction transmissions are certainly possible positional rotation sensors 63 for indicating the relative position of actuator pinion 19 and hence the open and closed state of the ball valve 1 are located axially above the worm gear 65 substantially different from the conventionally known electric actuators the present actuator uses a 50 1 ratio reduction worm gear reduction ratio transmission including a worm 64 for driving the worm gear 65 which in.