Durable: The chemical properties of copper are stable, and it combines the characteristics of cold resistance, heat resistance, pressure resistance, corrosion resistance and fire resistance (the melting point of copper is as high as 1083 degrees Celsius), which can be used for a long time in different environments. The service life of copper pipes can be as long as that of buildings, or even longer. For example, the copper plumbing fittings installed in Peking Union Medical College Hospital in the 1920s have been in good performance for more than 70 years. It can be seen that copper pipes are pipes that have been fully tested by more than 100 years of time and practical experience.

Safe and reliable: Copper pipes combine the advantages of metal pipes and non-metal pipes. It is harder than plastic pipes and has the high strength of ordinary metals (the strength of cold-drawn copper pipes is equivalent to that of steel pipes with the same wall thickness); it is easier to bend than ordinary metals, has good toughness and high ductility, and has excellent anti-vibration and anti-vibration properties. Impact and frost heave resistance.

The copper tube can withstand extremely cold and extremely hot temperatures, with a wide range of application from -196 degrees to 250 degrees, and adapt to drastic changes in temperature (-high temperature-low temperature-high temperature-), and its performance will not be affected by long-term use and drastic changes in temperature And lower, there will be no aging phenomenon. This is beyond the reach of ordinary pipes.

The linear expansion coefficient of the copper pipe is very small, which is 1/10 of that of the plastic pipe, and it can resist fatigue. Excessive thermal expansion and contraction will not result in stress fatigue cracking during temperature changes.

These characteristics make copper pipes extremely advantageous for applications in cold regions. In severe cold areas, the temperature difference between morning and evening is large, and the linear expansion coefficient of ordinary pipes is large and the strength is low. Some claim that -20 degrees are not brittle, but in fact they cannot withstand working pressure, and the service life is very short, which has no practical significance. Although thermal insulation measures can be adopted, it is unavoidable to encounter low temperature during transportation, storage and installation. The performance of the tube is the same at -183 degrees and normal temperature.

PPR Copper Male Elbow

Hygiene and health: Copper pipes do not have various modifiers, auxiliaries, additives and other chemical components of plastic pipes.

Biological studies have shown that Escherichia coli in the water supply can no longer reproduce in copper pipes; more than 99% of the bacteria in the water are completely killed after entering the copper pipes for 5 hours.

The copper tube structure is extremely dense and impermeable. Harmful substances such as oil, bacteria, viruses, oxygen and ultraviolet rays cannot pass through it and pollute the water.

In addition, copper pipes do not contain chemical additives, and they will not burn and release toxic gases to suffocate people. The recycling of copper is conducive to environmental protection and is a green building material for sustainable development.