Gate specifications include circular gates and square gates, which can be designed and manufactured according to the size and shape of the outlet; they can be either hollow float plate gates or flat plate gates. They are a type of one-way valve suitable for pipeline, sewage treatment, and drainage outlets along riverbanks. It features automatic opening and closing functions; excellent water stoppage and anti-backflow performance; composite material gates are highly resistant to corrosion and easy to install and manage.