Electric valves are widely used in municipal and industrial and mining enterprises of the water supply and drainage system. Electric valve by the electric device, the valve body, connecting accessories and control box and other components. Electric valve electric device is to achieve the valve program control, automatic control and remote control indispensable drive equipment.

Electric valve is generally selected by the professional drainage, water supply and drainage professional and technical personnel in the engineering design of the valve to the electrical device to the specific functional requirements, and by a professional manufacturer of electric devices for selection. However, in the actual project often occurs in the field installation, the valve electric drive and control system conflict does not match the phenomenon. This is usually due to unreasonable or imperfections when determining the functional requirements of the motorized device.