1. PP-R pipe: a pipe made of polypropylene and polyethylene. It has the advantages of light weight, high strength and corrosion resistance. However, this pipe is a thermoplastic material and cannot be heated or kept warm on an open flame. And be careful not to use open fire to heat during construction, otherwise it will cause decomposition and carbonization, which will reduce the service life and safety.
2. PP-R aluminum-plastic pipe is developed from aluminum-plastic composite pipe. It has good compression resistance, impact resistance and temperature resistance, as well as excellent insulation and corrosion resistance. The installation method of the PP-R aluminum-plastic pipe is to put the aluminum pipe on the pipe fitting first, then insert the pipe fitting into the pipe and fix it with hot melt adhesive, and finally tap the aluminum skin at the joint between the aluminum-plastic composite pipe and the pipe fitting a few times.
