Valve provided with electric actuator and used for ventilation system

The utility model relates to the technical field of ventilation systems, in particular to a valve provided with an electric actuator and used for a ventilation system. According to the technical scheme, the valve comprises a valve body, a protective shell and an electric actuator body, the electric actuator body is installed at the top of the valve body through fixing frames, a rotating shaft is installed at the bottom of the valve body and penetrates through the valve body, a rotating speed sensor is installed between the fixing frames on the periphery of the rotating shaft, and an air velocity sensor is fixedly installed on the surface of the rotating shaft; a protective shell is installed on the top of the valve body on the periphery of the electric actuator body, and stop blocks are fixedly installed on the top of the valve body on the two sides of the protective shell. Through the combination of various structures, the device can be automatically started, stopped and used in the working process, air pass