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Drinking-grade PVC-O water supply pipes are high-performance drinking water pipes modified by a bidirectional axial orientation process. They use food-grade PVC resin as the base material and comply with drinking water hygiene standards throughout the process, with no harmful substances leaching out. Compared with ordinary drinking-grade UPVC pipes, they have the characteristics of high strength, lightweight, and high pressure resistance. The pipe walls are thinner and the water transmission efficiency is higher. They are suitable for high-pressure, long-distance drinking water transmission and distribution in municipal, building, and rural drinking water projects, and are the high-performance preferred pipe material for upgrading drinking water pipe networks.
1. Made with food-grade PVC-O base material, lead-free, free of toxic plasticizers/stabilizers, and free of harmful substances added throughout the entire process, ensuring drinking water safety from the raw material stage;
2. Formed using a bidirectional axial orientation process, resulting in a dense and uniform molecular structure, combining high strength and high toughness. Its wall thickness is significantly thinner than drinking-grade UPVC pipes at the same pressure rating, making it lightweight and easier to install;
3. Equipped with drinking water-grade sanitary connectors, primarily using elastic sealing ring socket connections. The sealing rings are made of food-grade material, eliminating sanitary dead corners at the interface and preventing secondary contamination;
4. High-precision ultra-smooth inner and outer walls. The inner wall is less prone to scaling and bacterial growth, while the outer wall is wear-resistant and uncoated, preventing coating peeling and contamination of drinking water;
5. Scenario-specific sanitary modification design. Food-grade UV-resistant and corrosion-resistant additives are added for outdoor/buried sections without affecting water quality, adapting to indoor and outdoor drinking water installation needs;
6. Covers medium and large diameter sizes (DN50~DN315). (Primarily based on pressure resistance specifications, with clearly defined classifications, allowing for flexible construction of main pipes, branch pipes, and household inlet pipes in drinking water networks.)
1. Hygiene and Safety Standards: No heavy metals, plasticizers, or other harmful substances leach out during long-term water transport, maintaining the color, taste, and quality of drinking water. It provides no conditions for bacterial growth and meets the hygiene requirements for drinking water transmission and distribution.
2. Superior Mechanical Properties: Tensile, compressive, and impact strengths are 2-3 times that of ordinary drinking-grade UPVC pipes. Excellent ring stiffness ensures resistance to soil compression and construction impacts without deformation, and resistance to low-temperature impacts without brittleness.
3. Stable High-Pressure Water Transport: Operating pressure can reach 1.6-3.2 MPa, suitable for long-distance high-pressure water transport in municipal drinking water systems and the pressure requirements of secondary water supply in high-rise residential buildings, eliminating the risk of pipe bursts or leaks.
4. Highly Efficient Hydraulic Water Transport: Thin-walled design with an ultra-smooth inner wall results in a friction coefficient far lower than traditional drinking water pipes, significantly reducing head loss, improving water transport efficiency, and lowering energy consumption. It also prevents scaling over long-term use, ensuring no decrease in water transport efficiency.
5. Weather and Corrosion Resistant and Compatible: Operating temperature range - 10℃~70℃, suitable for normal temperature drinking water distribution; outdoor exposed application resists UV aging, does not powder or crack; buried application withstands weak corrosion from soil acids, alkalis, and salts, does not swell or age;
6. Reliable sealing and seepage prevention: Food-grade elastic sealing rings achieve zero leakage at the interface, preventing drinking water loss and effectively blocking underground mud, sewage, and impurities from seeping into the pipe, eliminating secondary pollution of drinking water;
7. Excellent aging resistance: Dense molecular structure, designed service life of over 50 years in drinking water and normal natural environments, with no significant performance degradation over long-term use.
