Copper pipes are hard and not easy to corrode.
They are also resistant to high temperatures and high pressures and can be used in a variety of environments. In comparison, the shortcomings of many other pipes are obvious. For example, galvanized steel pipes, which were often used in residential buildings in the past, are very easy to rust. After a short period of use, the tap water will turn yellow and the water flow will decrease. Some materials will quickly reduce their strength at high temperatures, which will cause unsafe hazards when used for hot water pipes. However, the melting point of copper is as high as 1083 degrees Celsius, and the temperature of the hot water system is negligible for copper pipes. Archaeologists have discovered copper water pipes dating back 4,500 years in the Egyptian pyramids, which are still in use today.
Copper pipes are durable
Copper has stable chemical properties and combines the characteristics of cold resistance, heat resistance, pressure resistance, corrosion resistance and fire resistance (copper has a melting point of up to 1083 degrees Celsius), and can be used for a long time in different environments. The service life of copper pipes can be as long as the life of the building, or even longer. For example, the copper plumbing parts installed in Peking Union Medical College Hospital in the 1920s have been in good condition for more than 70 years. It can be seen that copper pipes are pipes that have been fully tested by more than a hundred years of time and practical experience.
Copper pipes are safe and reliable
Copper pipes combine the advantages of metal pipes and non-metallic pipes. It is harder than plastic pipes and has the high strength of general 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 general metals, has good toughness and high ductility, and has excellent vibration resistance, impact resistance and frost heave resistance.
Copper pipes can withstand extremely cold and hot temperatures, with a wide range of applications from -196 degrees to 250 degrees, and can adapt to drastic temperature changes (-high temperature-low temperature-high temperature-), and the performance will not be reduced due to long-term use and drastic temperature changes, and will not produce aging. This is beyond the reach of ordinary pipes.
The linear expansion coefficient of copper pipes is very small, which is 1/10 of that of plastic pipes, and it is fatigue-resistant. When the temperature changes, there will be no excessive thermal expansion and contraction, which will lead to stress fatigue cracking.
These characteristics make the application of copper pipes in cold areas very advantageous. In severe cold regions, the temperature difference between morning and evening is large. Ordinary pipes have a large linear expansion coefficient and low strength, which is very easy to produce stress fatigue cracks caused by thermal expansion and contraction. Some are claimed to be not brittle at -20 degrees, but in fact they cannot withstand working pressure, and their service life is very short, which has no practical significance. Although insulation measures can be adopted, it is inevitable to encounter low temperatures during transportation, storage and installation, while the performance of copper pipes is the same at -183 degrees and room temperature.
Copper pipe hygiene and health
Copper pipes do not have various modifiers, additives, additives and other chemical components of plastic pipes.
Biological studies have shown that E. coli in the water supply can no longer continue to 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 pipe has an extremely dense structure and is impermeable. No matter whether it is grease, bacteria, viruses, oxygen, ultraviolet rays and other harmful substances, they cannot pass through it and pollute the water quality.
In addition, copper pipes do not contain chemical additives and will not burn to release toxic gases that suffocate people. The recycling of copper is conducive to environmental protection and is a green building material for sustainable development.
