PP-R pipes: a reliable choice for hot and cold water, water supply and drainage systems

I. Core Advantages in Hot and Cold Water Systems

PP-R pipes offer outstanding heat resistance and stability in hot and cold water piping systems in homes and commercial buildings. They maintain a stable operating temperature of around 70°C for long periods and can withstand short-term temperatures up to 95°C, fully meeting the needs of daily hot water delivery. Compared to traditional galvanized steel pipes, PP-R pipes have a smooth, rust-resistant inner wall, effectively reducing water flow resistance, lowering energy consumption, and preventing clogging caused by scale accumulation.

Finally, PP-R pipes utilize hot-melt connection technology, where the joints are fused together at high temperatures to form a single, integrated structure, eliminating the risk of leakage. This connection method is not only simple to operate but also ensures a tight seal within the piping system, particularly in hot water circulation systems, effectively preventing loosening caused by thermal expansion and contraction. In cold northern regions, buried PP-R cold water pipes can be enhanced with antifreeze to prevent cracking during winter.

II. Safety of Water Supply Systems

As water supply pipes in towns and buildings, the hygienic and safe nature of PP-R pipes is a core competitive advantage. High-quality PP-R raw materials contain no heavy metals like lead, and no toxic additives are added during the production process. They meet national food-grade contact standards and can be used directly for drinking water transportation. The inert material of the pipe's inner wall does not chemically react with disinfectants in the water or breed bacteria, maintaining long-term water quality.

In terms of water supply pressure, PP-R pipes can withstand operating pressures exceeding 1.6 MPa, meeting the water supply needs of multi-story and high-rise buildings. Their lightweight nature (density is only 1/8 that of metal pipes) significantly simplifies installation. Whether installed indoors, exposed or concealed, they can be laid using simple tools without the need for heavy machinery, shortening construction time. Furthermore, PP-R pipes' corrosion resistance makes them adaptable to varying water qualities, ensuring long-term stability whether installed underground in acidic soils or transporting mineral-rich groundwater.

III. Efficient Solutions for Drainage Systems

In drainage applications, PP-R pipes offer significant advantages in impact resistance and drainage efficiency. Large-diameter PP-R drainage pipes (up to 315mm in diameter) feature smooth inner walls and high water flow, enabling rapid drainage of domestic sewage and rainwater while reducing siltation within pipes. Compared to PVC drainage pipes, PP-R pipes are more durable and less susceptible to damage from impact during construction or use, making them particularly suitable for installation in confined spaces such as building mezzanines.

For industrial drainage applications, PP-R pipes' chemical resistance is fully utilized. They withstand corrosion from a wide range of acidic and alkaline solutions and can be used to discharge mildly corrosive wastewater from factories. Furthermore, PP-R drainage pipes offer superior sound insulation compared to metal pipes, generating less noise when water flows through them. In residential drainage systems, they can effectively reduce disturbances to the living environment.

Fourth: Continuous Expansion of Industry Applications

With technological advancements, the performance of PP-R pipes continues to improve. Oxygen-barrier PP-R pipes, by adding a barrier layer, effectively prevent oxygen from penetrating the piping system, preventing corrosion of metal fittings and extending the service life of the entire plumbing system. Reinforced PP-R pipes, with their composite structure, offer increased compressive strength and can be used for risers and main pipes in high-rise buildings.

Driven by the concept of green building, the environmental benefits of PP-R pipes are becoming increasingly prominent. Its recyclable raw materials and low energy consumption during production make it more sustainable than traditional metal pipes. Currently, PP-R pipes are widely used in various buildings, including residences, hotels, hospitals, and factories, becoming an indispensable key material in water supply and drainage systems.

From household water heater connections to city water mains, from bathroom drains to factory water circulation pipes, PP-R pipes, with their safety, durability, and efficiency, continue to provide reliable support for modern plumbing systems. While improving quality of life and industrial efficiency, they are also driving the plumbing industry towards a more environmentally friendly and intelligent future.