The Dongcheng District installed electric gate installed electric gate Aosen long, wide automatic doors 135208164511. Operating torque: operating torque is the most important parameter to select valve electric device. Output torque of the electric device valve operation should be 1.2 to 1.5 times the maximum torque. 2. Operating thrust: valve electric device host structure, there are two, one is not configured thrust plate, this time directly output torque; another thrust plate configuration, the output torque through the thrust disk stem nut converted to output Thrust. 3. Output shaft rotation number: valve electric actuator output shaft rotation number of laps with the valve nominal diameter, stem pitch, threaded head number, (where M = H / ZS: M for electrical installations should meet total number of rotations; H for the opening of the valve height, mm; the S stem transmission threaded pitch, mm; the Z first few stem threads. stem diameter: For the next shot of the multi-turn valves electric device allows the maximum stem diameter not through the stem, they can not be assembled into the electric valve., the electric devices hollow output shaft diameter must be greater than the next shot valve stem diameter for part of the rotary valve, as well as multi-turn lever valve valves in the dark, without considering the adoption of stem diameter problem, but the matching should take full account of the size of the stem diameter and keyway, so that the assembly can work properly.