Generally speaking, the composite ppr pipe adopts a five-layer structure, the outer layer is PPR, and the inner layer is PE-RT. In the middle, there is an aluminum layer. In addition, between the layers, hot melt adhesive is used and extruded and compounded through high temperature and high pressure, so as to have a good compound effect.
This kind of pipe has the advantages of plastic pipes and metal pipes. It can be said that the advantages of plastic pipes and metal pipes are combined to improve the performance of the pipe as a whole.
Due to the small expansion coefficient of the aluminum-plastic PPR pipe, it is not easy to cause problems such as deformation during the installation process. Moreover, due to its good toughness and high temperature resistance, it hardly needs to be repaired after installation.
|External diameter× wall thickness (mm)|