The working principle of the IoT micro electric flanged ball valve is as follows: the IoT micro electric actuator drives the valve stem to drive a perforated ball (or partial ball), and the ball rotates with the valve stem to realize the opening or closing of the valve; the electric ball valve can be fully closed or fully opened by rotating 0-90°. Compared with gate valves and globe valves of the same specification, the ball valve is small in size, light in weight, and convenient for pipeline installation.