Specification, model and size of domestic tap water pipes
1. There are many sizes of the outside diameter of water pipes, some are 20mm, some are 25mm, 32mm, 40mm, and the larger ones can reach 100, 150mm and other specifications. Generally speaking, 20 mm, 25 mm and 32 mm are enough for home use.
2. In addition, the wall thickness, inner diameter and outer diameter of different tap water specifications are different, so we should pay attention to the distinction when purchasing. For example, if the nominal inner diameter of the selected pipe is 20 mm, it is three quarters of the pipe. According to domestic specifications, its outer diameter is 25mm and its thick wall is about 3mm. If the inner diameter of the tube is 32 mm, the outer diameter of the tube is 40 mm and the thickness of the tube is about 4.6 mm.
What are the materials of water pipes?
1, water pipes include copper pipes, aluminum-plastic pipes, PVC pipes and so on. Copper tube is a metal material with certain corrosion resistance. Moreover, its heat resistance is also very good, it will not age easily, and it has certain frost resistance. Can be embedded in a cement wall for use. And you can use the installation method, but the installation cost is very high, and the cost of materials is also very expensive.
2. Aluminum plastic pipe is a particularly popular water pipe material in the market. It is extremely light in weight and simple in structure, and can be bent. It is particularly convenient to install. It is convenient to use it as a hot water pipe or a cold water pipe.
3.PVC pipe is also a kind of tap water pipe that is often used. Its heat resistance and frost resistance are very good, but if PVC pipes are used as hot water pipes, they will expand when heated and contract when cooled. So when using hot water pipes, it is best not to use PVC pipes.
But no matter what kind of water pipes are used, we must choose the most suitable water pipes and materials according to the actual situation at home. If you don't know much about it, you can consult professionals and ask them to recommend suitable water pipes.