UPVC water pipes are now, PPR pipe and copper pipe is generally used as a residential renovation of the water supply pipe.

PPR tube: In recent years, the rapid development of domestic PPR pipe, but the market quality of products varies greatly, there are quite a mixed bag phenomenon. Regardless of cold water pipe or hot water pipe, pipe material should be the same, cold, hot water pipe wall thickness is different. However, the market is more common in the pipe and hot water pipes with better raw materials, and cold water pipe with PPB (PPB block copolymer polypropylene) posing PPR situation, in this case, due to different materials, the weld prone to fracture , Desoldering, leakage and so on.

Consumers should pay attention to identify the identification of pipe on the logo, the product name should be "hot and cold water with random copolymer polypropylene pipe" or "hot and cold water with PP-R pipe" and express the implementation of the national standard "GB / T18742-2002 ". Attention should be paid when products are found to have other names or perform other criteria.

In general, the hot water pipe should use the pipe S series of 2.5 pipe, which is 20 diameter pipe wall thickness should be more than 3.4 mm, 25 pipe wall thickness should be more than 4.2 mm. In addition PP-R pipe linear expansion coefficient of about 10 times the copper, construction should pay attention to the installation room for expansion and contraction.

Copper: copper chemical properties are fairly stable, not easily corroded. Copper tube strength than plastic pipe is much higher, can withstand considerable pressure; and than the steel pipe, copper pipe has good toughness, in the strong frost heave and impact does not crack, not broken. The high melting point of copper, the transmission medium temperature even up to 200 ℃, but also long-term safe operation. Copper tube has good resistance to penetration, the use of the process, its surface can form a layer of dense structure, not the dissolution of the protective film, whether oil, carbohydrates, bacteria and viruses, harmful liquids, oxygen or ultraviolet light can not Through it and then erosion of the wall.

Brass current national standards for the implementation of GB / T18033-2000, copper water supply for the general T2 or TP2 alloy, copper content should be 99.9% or more. Copper tube shortcomings is fast thermal conductivity. In order to avoid this disadvantage, it is best to transport hot water in the copper tube covered with insulation layer to reduce heat loss.

Although there are plastic coated copper pipe on the market, but its role in thermal insulation is limited, the best in its outer surface and then put on the foam rubber tube shell, in order to improve the performance of hot water pipe insulation.

No matter what kind of water pipe to choose should pay attention to the following points:

1. concealed buried water pipes as far as possible with the joints, should adopt a complete pipe.

2. Pipeline try not to go from the ground

3. Water pipe installation must be completed after the test pressure, concealed works should be no problem in the test pressure can be closed.

4. After installation is complete, you must obtain a warranty book, pipeline to map.

5. The best water pipe manufacturer or professional team to install