The installation and use of electric square plug valves are on square pipelines. Different sizes of plug valves can be made according to different sizes of pipelines. Usually, this type of plug valve is a customized plug valve, and its connection size is determined by the size of the pipeline. The application range of electric square plug valves is very wide. It can be used in water supply systems, powder slurry systems, and other systems. It is also suitable for exhaust gas and other spare spaces. It can also adopt rubber soft sealing and metal hard sealing according to the different environmental temperatures on site. Therefore, this electric square plug valve can meet the requirements of the site with high pressure up to PN10 Pressure, of course, as it belongs to electric operation, can also be remotely operated (switched or regulated) using explosion-proof electric actuators according to the on-site environment, or ordinary switch type electric actuators can be selected for switch operation.