The installation of ridge ventilator can bring unexpected ventilation effects to industrial plants. For opening & closing natural ventilation system, in addition to install the valve plate, the installation of the electric actuator is also particularly critical. After the valve plate of the steel roof ridge vent is installed, an electric actuator needs to be installed in the center of the second beam of the natural roof ventilation. The smoke vents' electric actuator is used to control the opening and closing of the valve plate. The motor is fixed with screws on the second beam of the frame, and then the reducer and the motor are connected. After the connection is completed, a bearing is installed on the connected frame. After the installation is complete, connect the reducer and the bearing with a hollow steel pipe. There is a through hole on both sides of the steel pipe. Finally, the steel wire rope is passed through the hollow steel pipe, and the two ends of the steel wire rope are connected with the valve plate. A travel switch is installed at a certain position on the upper part of the plate. When the valve plate is opened to a certain position, the valve plate touches the travel switch and cuts off the power supply, so that the valve plate stops opening.

When the motor rotates, the motor drives the reducer, and the reducer drives the hollow steel pipe. At this time, the hollow steel pipe will wind up the steel wire rope passing through it, so as to achieve the purpose of pulling the valve plate apart. The wires on the roof smoke vents motor run along the streamlined skylight frame and the foundation steel of the factory roof to the inside of the factory building and are connected to the electrical control box.