A circular tube plastic connector is a plastic product used to connect a circular tube. It is usually made of high-strength plastic materials, with corrosion resistance, wear resistance, high temperature resistance and other characteristics. Round pipe plastic connectors can be used in various fields, such as construction, industry, agriculture, etc., for connecting round pipes of different diameters to achieve the extension, branch or turn of the pipeline. Common round pipe plastic connectors include elbow, tee, tee, flange, sleeve and so on. They are usually threaded connection, plug connection or welded connection, and have the advantages of easy installation, good sealing and durability. Round pipe plastic connectors are widely used in water supply, drainage, gas supply, heating and other pipeline systems, and are indispensable components in pipeline installation and maintenance.