Cast iron inlaid copper gates are divided into cast iron inlaid copper gates and cast iron inlaid copper round gates according to the shape structure. The cast iron inlaid copper square gate adopts a unique outer arc shape design with reasonable structure and uniform force, and adopts high quality gray cast iron or nodular cast iron, It is made of stainless steel and seals the surface with copper strips or rubber, and after precision machining, it is equipped with grinding to reach the plane contact seal. The sealing performance is good. When the sealing and water stopping performance is reduced, it can be solved by adjusting the wedge device. Cast iron inlaid copper gate performance characteristics 1. The gate has reasonable structural design and stable sealing performance. 2. The gate has strong anti-corrosion performance and long service life. 3, the gate is easy to install and use, flexible opening and closing. 4. The structure of the gate is square, rectangular and circular, and the opening and closing mode can be manually operated or electric. Cast iron inlaid copper square gates are widely used in water treatment buildings such as urban water supply, metallurgy, chemical industry, irrigation, electric power, and textile industries to achieve flow and liquid level control. It is one of the important equipment for water supply and drainage and sewage treatment.