PE pipe is made of monomer ethylene. Due to the different polymerization reaction conditions such as pressure and temperature during polymerization, resins of different densities can be obtained, so there are high-density polyethylene, medium-density polyethylene and low-density polyethylene. points. When processing different types of PE pipes, according to their application conditions, different resin grades are selected, and the requirements for extruders and molds are also different. Reliable connection: The polyethylene piping systems are connected by electrothermal fusion, and the strength of the joint is higher than that of the pipe body. Good low temperature impact resistance: polyethylene has extremely low low temperature embrittlement temperature and can be used in the temperature range of -60-60 °C. During construction in winter, due to the good impact resistance of the material, the pipe will not be brittle. Good stress crack resistance: HDPE has low notch, high shear strength and excellent scratch resistance, and environmental stress crack resistance is also outstanding. Good chemical corrosion resistance: HDPE pipes are resistant to corrosion by a variety of chemical media, and chemical substances in the soil will not degrade the pipes. Polyethylene is an electrical insulator, so it does not rot, rust or electrochemically corrode; it also does not promote algae growth.
