1. PE pipes for water supply are replacement products for traditional steel pipes and PVC drinking water pipes.
Water supply pipes must withstand certain pressures, and it is usually necessary to select high molecular weight PE resins with better mechanical properties, such as HDPE resin. LDPE resin has low tensile strength, poor pressure resistance, low rigidity, poor dimensional stability during molding, and is difficult to connect, making it unsuitable as a material for water supply pressure pipes. However, due to its high sanitary index, LDPE, especially LLDPE resin, has become a commonly used material for producing drinking water pipes. LDPE and LLDPE resins have low melt viscosity, good flowability, and are easy to process, thus having a wider selection range for melt flow index, typically between 0.3-3g/10min.

Xunteng Pipes

2. Performance Characteristics:
A good pipeline should not only have good economic efficiency but also possess a series of advantages such as stable and reliable joints, impact resistance, crack resistance, aging resistance, and corrosion resistance. Compared with traditional pipes, HDPE pipe systems have the following advantages:
1. Reliable connections: Polyethylene pipe systems are connected using electric fusion methods, with joints having strength greater than that of the pipe body.
2. Good low-temperature impact resistance: The low-temperature embrittlement temperature of polyethylene is very low, allowing for safe use in the temperature range of -60 to 60℃. During winter construction, the material's good impact resistance prevents pipe brittleness.
3. Good stress crack resistance: HDPE has low notch sensitivity, high shear strength, and excellent scratch resistance, with outstanding performance against environmental stress cracking.
4. Good chemical corrosion resistance: HDPE pipes can resist corrosion from various chemical media, and chemical substances present in the soil do not degrade the pipes. Polyethylene is an electrical insulator, thus there will be no rotting, rusting, or electrochemical corrosion; additionally, it does not promote the growth of algae, bacteria, or fungi.
5. Aging resistance and long service life: Polyethylene pipes containing 2-2.5% uniformly distributed carbon black can be stored or used outdoors for 50 years without damage from ultraviolet radiation.
6. Good wear resistance: Comparison tests of wear resistance between HDPE pipes and steel pipes indicate that HDPE pipes are four times more wear-resistant than steel pipes. In the field of slurry transportation, HDPE pipes have better wear resistance compared to steel pipes, meaning HDPE pipes have a longer service life and better economic performance.
7. Good flexibility: The flexibility of HDPE pipes makes them easy to bend, allowing for routing around obstacles in engineering, which can reduce the amount of fittings used and lower installation costs in many instances.
8. Low water flow resistance: HDPE pipes have a smooth inner surface with a Manning coefficient of 0.009. The smoothness and non-adhesive characteristics ensure that HDPE pipes have a higher conveyance capacity than traditional pipes while reducing pressure loss and energy consumption for water transportation.
9. Convenient handling: HDPE pipes are lighter than concrete pipes, galvanized pipes, and steel pipes, making them easier to handle and install, requiring less manpower and equipment, which significantly reduces installation costs.
10. Various new construction methods: HDPE pipes have multiple construction technologies; in addition to traditional excavation methods, various new non-excavation techniques such as pipe jacking, directional drilling, pipe relining, and pipe bursting can also be used, making them suitable for places where excavation is not allowed, thus expanding the application fields of HDPE pipes.

Shandong Xunteng Plastic Industry Co., Ltd. is one of the largest PE pipe and fittings production bases in China. It is one of the few large manufacturing enterprises in the country capable of producing various types of PE water supply pipes, PE gas pipes, PE mining pipes, and self-matched production of PE water supply fittings, PE gas fittings, and PE mining fittings. It is the only manufacturer in Northern China capable of producing large-diameter PE fittings ranging from 800mm to 1800mm, with nationally competitive product prices! Welcome to inquire and negotiate. Contact number: 18954962733 Landline: 0539-8635528