304 stainless steel pipe has a larger and larger share in the current water pipe market. Many users began to see the potential of stainless steel pipe and began to choose 304 stainless steel pipe. If the stainless steel pipe is to have a good use effect, its installation and connection effect is very important. The next part of this paper is the connection of stainless steel pipe. Make a brief introduction.
304 stainless steel pipes are connected by extrusion, expanding ring, welding and some new methods. Extrusion connection is to use the external force of radial contraction to clamp the pipe fittings on the pipe, and then through the O-ring seal water to achieve the connection effect. Long term use of this connection method will have a great hidden danger, because the connection strength of this connection method is low, and the pipeline is not easy to disassemble, so this method is generally not recommended.
304 stainless steel pipe expansion ring connection mainly uses the radial contraction external force to clamp the pipe on the pipe, and then uses the wide band rubber seal ring to stop the water, so as to achieve the connection effect. This kind of connection is better than extrusion connection and can be disassembled, but the casting cost is higher.
The welded stainless steel pipe is connected by hot-melt process, i.e. two joints are welded. The connection strength is high, but it pollutes the environment greatly. The gas in the weld is not easy to reach the standard, and the corrosion is easy to occur between the welds. Reduce the service life of the pipeline.