What are the materials of the tap water pipe?

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. Next, small series to tell you and what good is the water pipe material content presentation.

1. What is the quality of the water supply pipe? What we call safety endurance means that no water leakage, burst, or other life-threatening and family-safety events occur during the service life of the water pipe, ensuring long-term use. This requires the water pipe to be resistant to corrosion, high temperature, frost resistance and good mechanical properties.

(1) Plastic pipe restrictions

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.

(2) Composite pipe "moderate"

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.

(3) Copper tube performance is the most stable

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 more expensive.

2. Copper tubes can inhibit the growth of bacteria The main components of plastic tubing are some high-molecular polymers, which have certain toxicity and are relatively easy to infiltrate, especially if used in direct drinking water supply systems, which have serious harm to the human body. Another example is the water pipe that you have not used for a long time. When you suddenly open it, you find out that the outflow is “yellow” water. In the past, the galvanized iron pipe in the house was prone to such a thing. This “yellow” water is also harmful to the human body. Copper pipes can inhibit the growth of bacteria. E. coli can no longer reproduce in copper pipes. More than 99% of E. coli and pneumococcal bacteria will eliminate themselves after entering the copper pipes for 5 hours, maintaining the cleanliness of drinking water.

3, PP-R and copper pipes can be buried in the wall We all know that plastic pipe is very convenient to install, but most of the components connected to them are metal parts, due to the great difference in mechanical properties of plastic and metal, it is easy to cause burst or Water leakage, so construction can not generally be buried in the wall, can only be laid outside. The PP-R, brass and its accessories and specifications are complete and can be selected from 6mm-250mm. PP-R pipe can be welded seamlessly, and manufacturers can also be buried in the wall when installing. Its advantages are that the price is cheaper and the construction is convenient. The cutting, bending and processing welding of copper tubes are also simple, and the connection forms are various. There are brazing, ferrules, crimping, plugging, flanges, grooves, etc., which can fully meet various occasions and situations. need.

  

Xiao Bian Summary : What information about the water pipe is good? Are you familiar with it? If you need to know more about the water pipe, please continue to pay attention to this site information.

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