Construction Features
Electric motor, special motor for valve control, nominal running time-10 minutes. The Motor is mounted on the external lateral side of the enclosure and is coupled to the main driving mechanism with gears.
Stroke control mechanism, A cam mechanism is used for stroke limiting mechanism. The cam shaft is in synchronous motion with output shaft. In open direction and close direction are provided separately with two cams and two microswitches, a power source for control motor and an "on" state indicator lamp.

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