Ppr tubes sold in the market are classified according to their different production standards and product requirements.

　　One: conventional classification

PPR pipes can be divided into five different categories, S4, S5, S3.2, S2.5, and S2. The products corresponding to these five categories have different wall thicknesses and different wall thicknesses, which means that these water pipes bear The pressure is different. The smaller the S value, the greater the pressure value it can withstand, and its use field will be relatively wider.

　　Two: Classification of uses

　　Pipelines can be divided into water pipes, circuit bushings and gas pipes according to their use. Among them, water pipes can be subdivided. According to the temperature of the passing water, they can be divided into two categories: hot water pipes and cold water pipes. The classification of hot water pipes and cold water pipes is mainly based on the value of S, and the value of S is below 3-2. The hot water pipe is the hot water pipe, and the cold water pipe is the S value between 3.2 and 5.

　　Three: Classification of outer diameter

The outer diameters of ppr pipes are 20, 25, 32, 40, 50, 63, 75, 90, and 110. The wall thickness of the corresponding pipes will also be different. The most common water supply pipes and drainage pipes in households are usually used. There are three sizes of 20, 25, and 32. The 20 mm pipe is also called 4 in charge, and the 25 mm pipe is called 6 in charge.

　　 Four: Different use environment

　　According to the requirements of the production and use environment, the process and production line of ppr tubes will be different during R&D and production. They can be divided into special ppr tubes and ordinary ppr tubes. Special ppr tubes generally require special customization.