How to choose the water pipe in many pipes
In the building materials city, you will find a wide variety of water pipes, such as PP-R pipes, PVC-U pipes, plastic-lined steel pipes, stainless steel pipes, and copper pipes.
Water pipe should be stable and reliable, no water leakage, no burst
What we call safety durability means that no water leakage, burst or other life-threatening and home-safety events occur during the service life of water pipes, and long-term use can be guaranteed.
This requires the water pipe to be resistant to corrosion, high temperature, frost resistance and good mechanical properties. The comparison found that plastic pipe can not be high temperature resistance, in the case of large temperature difference is easy to deformation caused by leakage, and its small pressure resistance, easy to embrittlement, these are destined not suitable for long-term heating, not suitable for use in cold northern Is not suitable for high-rise buildings.
stainless steel pipe
Composite pipe combines the advantages of metal and plastic, but precisely because of the different expansion coefficients of plastic and metal, long-term use will inevitably lead to delamination of the pipe, causing harm.
For copper pipes, we all know that copper has a low order in chemical activity ranking, stable performance, and strong corrosion resistance. Copper is a material with a certain strength and excellent plasticity and toughness. It has excellent low-temperature properties. Therefore, copper pipes are not only resistant to heat and fire, but also have no anti-frost performance. The copper pipes installed in the 1920s of the Peking Union Medical College Hospital in the 1920s have experienced good performance for more than 80 years. This shows that the copper pipes can be durable and have the same long-term safety and reliability as buildings. In addition, the copper tube is robust and has a low thermal expansion rate and is particularly suitable for embedding in cement walls without having to worry about wall cracking. However, the price of copper pipes is expensive
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