Convex pipe technology of Foshan Tuqi Pipe Industry Co., Ltd.

1. Convex pipe connection technology can solve the problems of traditional metal pipes, such as galvanized pipes, stainless steel pipes and galvanized pipes lined with plastic. When connecting these metal pipes, it is often necessary to use the method of destroying the pipe ends, that is, twisting teeth or grooving. Because the ribs have certain height and depth requirements, in order to ensure the connection strength and sealing performance of the pipe, it is necessary to reserve enough allowance for the processing of the pipe end. In this way, the wall thickness of the pipeline is much higher than the size set by the actual fluid pressure, and this increased wall thickness is called "excess wall thickness". Because the wall thickness of traditional metal tube is too large, a lot of metal tube materials are wasted and the production cost is increased.

2. The convex ring (commonly known as "reinforcing rib") at the end of the convex odd pipe can improve the radial pressure and radial tension of the pipe end. Without considering the high-strength external compressive force, the pipe wall thickness can be set directly according to the calculation method of "theoretical wall thickness" plus "reserved wall thickness" (including corrosion resistance, pressure resistance, heat resistance and machining error during pipe making), and there is no excess wall thickness for the pipeline, which fundamentally reduces the material consumption of the metal pipeline.

3. The convex odd pipe and pipe fittings form a "button-type" connection mode, which is called "convex odd connection mode" for short, which is firm and has good sealing performance. The installation tool is light and simple, which makes the installation and connection very fast and convenient, greatly improves the construction efficiency, and has the advantages of beauty, durability and light weight.

4. The experiment shows that after the convex odd pipe is firmly connected with the pipe fitting, the axial tension can bear more than 2000KG, and the pipe and pipe fitting will not be pulled off.

5. Convex pipe connection technology is suitable for all metal pipe connections.

6. The internationally advanced "convex-odd connection method" is a great innovation in the technical level of the metal pipeline industry and a breakthrough in the connection method. The appearance of this technology will kick off the reform of metal pipeline.