Drinking water safety upgrade: How can PE pipes pass sanitary certification to ensure water purity?

Raw material control: Eliminate pollution from the source

In terms of raw material selection, PE pipes used for drinking water transportation use food-grade polyethylene resin to eliminate pollution from the source. This type of resin does not add heavy metal salt stabilizers, has stable chemical properties, is non-toxic and harmless, and will not react chemically with water to precipitate harmful substances. We will strictly screen raw material suppliers and require that the raw materials must pass a number of international authoritative certifications, such as the US FDA (Food and Drug Administration) certification and the EU REACH regulations, to ensure that each batch of raw materials meets high standards.

Production process: full clean control

During the production process, PE pipes are formed in a closed and clean environment using advanced extrusion technology. The production equipment is made of stainless steel to prevent impurities such as rust from mixing into the pipe. Parameters such as extrusion temperature and pressure are precisely controlled to ensure that the pipe density is uniform and the texture is excellent. Moreover, after production is completed, each PE pipe must be washed with high-pressure water and sterilized with ultraviolet light to ensure that the inside of the pipe is clean and sterile.

Sanitary certification: multiple standards and strict inspection

Sanitary certification is the key to verify whether PE pipes can be used for drinking water transportation. PE pipes are subject to multiple strict tests, including physical properties, chemical properties and microbial index tests. Physical performance testing ensures that the pipes are not easily deformed or broken under water pressure and temperature changes; chemical performance testing focuses on whether the pipes will precipitate harmful substances, and indicators such as heavy metal content and organic matter migration are strictly restricted; microbial index testing ensures that the pipes will not become a breeding ground for bacteria. Only when all tests meet national standards such as the "Safety Evaluation Standards for Drinking Water Transmission and Distribution Equipment and Protective Materials" can PE pipes obtain sanitary certification.

Practical application: long-term protection of water quality safety

In actual applications, PE pipes rely on smooth inner walls to reduce the adhesion of impurities in water and reduce the risk of microbial growth. At the same time, its excellent corrosion resistance prevents it from being corroded by water during long-term use and affecting water quality. After many cities have adopted PE pipes for the transformation of old pipe networks, the water quality has been significantly improved, and residents have become safer and more assured in using water. PE pipes have passed strict sanitary certification, protecting the purity of drinking water in many ways and ensuring the safety of water use for residents.

In summary, PE pipes have devoted their ultimate pursuit of drinking water safety in every link, from the control of raw materials at the source, to the cleanliness control of the production process, and then to passing multiple strict sanitary certifications. In practical applications, it protects the purity of water quality with stable performance for a long time, and becomes a "safe link" connecting water sources and tens of millions of families. It is this series of rigorous processes and standards that make PE pipes not only a water delivery material, but also a solid barrier to ensure the safety of people's livelihood water use, and build a first line of defense for drinking water safety for the healthy life of the general public, so that every drop of flowing water carries peace of mind and trust.