PE pipe is the most suitable material for water supply pipelines

The development of plastic pipes in our country is rapid, and the quality is constantly improving. At present, the plastic pipe industry has initially formed, mainly consisting of polyvinyl chloride (PVC-U) pipes, polyethylene (PE) pipes, and polypropylene (PP-R) pipes. Among them, polyethylene (PE) pipes are widely used in building water supply, building drainage, buried drainage pipes, building heating, gas pipelines, electrical and telecommunications protection sleeves, industrial pipes, agricultural pipes, etc. due to their own advantages. It is mainly used for urban water supply, urban gas supply, and farmland irrigation.
　　
Zhang, who lives in Shaji, Yucheng County, said that Shaji will build a water supply plant to provide clean and convenient tap water for the general public. This good news has been welcomed by the general public and the installation is also very enthusiastic. But due to rumors of quality issues with the pipes, many people have doubts and even abandoned their installation plans.
　　
Mainly the pipes for tap water, during installation, people found that the pipes were all black instead of the common white pipes, "Zhang said. Later, some people said that black pipes did not meet the standards and had been eliminated. Now, white national standard pipes are used.
　　
In order to understand this matter, the reporter interviewed the Yucheng County Water Affairs Bureau. According to a staff member surnamed Zhang from the office of the bureau, black PE water pipes are currently being used in the construction of water supply in Shaji, which are national standard pipes and meet the requirements for drinking water pipes in terms of hygiene conditions.
　　
The water pipeline in Shaji was designed with PE pipes, which have good flexibility and are also very heat-resistant, making them less susceptible to damage from vehicles and other materials. ”The office staff of the bureau said that during the construction of Shaji tap water, both the main pipeline and the pipes in residents' homes are made of PE pipes, which are indeed black in color, but all of them are national standard pipes that meet hygiene requirements. The price of PE pipes is not cheaper than that of white PPR pipes.
　　
The reporter learned that PE is polyethylene plastic, the most basic type of plastic, and plastic bags, cling films, etc. are all made of PE. HDPE is a highly crystalline and non-polar thermoplastic resin. The original appearance of HDPE is milky white, with a certain degree of semi transparency in the thin section. PE has excellent properties as a chemical for both daily life and industrial use. PE pipes for water supply are the replacement products of traditional steel pipes and polyvinyl chloride drinking water pipes.
　　
Water supply pipes must withstand a certain amount of pressure, usually using PE resin with high molecular weight and good mechanical properties, such as HDPE resin. LDPE resin has low tensile strength, poor pressure resistance, poor rigidity, poor dimensional stability during molding, and difficult connection, making it unsuitable as a material for water pressure pipes. However, due to its high hygiene indicators, PE, especially HDPE resin, has become a commonly used material for producing drinking water pipes. HDPE resin has low melt viscosity, good flowability, and is easy to process, so the selection range of its melt index is also wide.
　　
Nano antibacterial PE pipe is made by adding nano scale antibacterial masterbatch particles to the inner plastic layer of the pipe, and co extruding them to produce pipes with antibacterial and self-cleaning effects. Mainly used in urban water supply networks, irrigation and water diversion projects, and agricultural sprinkler irrigation projects. Due to the use of hot melt and electric melt connection methods for pipeline connection, the integration of the interface and the pipe material is achieved, and it can effectively resist the longitudinal stress and axial impact stress generated by internal pressure. And no heavy metal salt stabilizers are added during the production process, the material is non-toxic, does not scale, and does not breed bacteria, avoiding secondary pollution of drinking water.