Pipeline is the key material of construction engineering, but also important material, and to provide security for life. Of course, pipeline engineering is a hidden project, if the pipeline leakage or burst will bring irreparable consequences.

Water pipe is the water supply pipeline, modern decoration water pipe is the use of buried wall construction, in the past, the water supply pipeline is mainly cast iron pipe. The main outdoor use of sand cast iron pipe, indoor use is galvanized cast iron pipe. However, due to the use of a few years after easy to produce a large number of rust scale, breeding bacteria, serious harm to human health. It can be seen that the choice of water pipe material is very important.

There are three categories of water pipes, the first class is metal pipes, such as plastic lined hot plated cast iron pipes, copper pipes, stainless steel pipes and so on. The second is plastic clad metal pipe, such as plastic clad steel pipe, aluminum plastic composite pipe, etc. The third type is plastic pipe. Domestic water, bath, toilet drainage can not be separated from the water pipe. However, because of its concealment, the choice of water pipe becomes extremely important. Data show that once these hidden works have a renovation, its investment will be more than 10 times the previous investment.

So what requirements should standard water pipes meet? The economy of water pipe can not be measured by the first investment, because it is a product with small investment and big loss. Long life, no maintenance, no loss, is the key to the economic performance of water pipes. If the water pipes and fittings products cannot live as long as the buildings, they will bring more than 10 times the loss of the first investment in water pipes to the consumers (mainly the loss of decoration materials for several times), and may also cause the loss of family property and increase the maintenance cost.

Water pipe materials should not cause pollution to the water supply, and can be recycled, no concerns about reuse, will not leave a lot of polluted garbage for future generations and no good way to deal with, we must think about future generations. Water pipe material in addition to water pipe material strength to be high, but also must have strong corrosion resistance. Mainly includes: water corrosion resistance, water corrosion resistance, air corrosion resistance and so on. Corrosion is the main factor of water pipe leakage, but it is the main factor of water pipe pollution. The water pipe material should not be the heat conduction material, but should be the thermal expansion coefficient is small, the environmental temperature and the use of the temperature of the material is strong. High coefficient of thermal expansion is also one of the causes of water leakage.

At present, with the demand for pipeline anticorrosion technology in various industries in China, a variety of high-performance anticorrosion and insulation technology is born, especially for anticorrosion and insulation pipeline, such as polyethylene anticorrosive steel pipe, epoxy coal asphalt anticorrosive steel pipe, epoxy powder anticorrosive steel pipe, etc.

Epoxy coal asphalt anticorrosive steel pipe in thermal insulation anticorrosive pipeline, the epoxy coal asphalt anticorrosive coating is mainly composed of two components, epoxy and coal asphalt, belongs to the two-component coating, its characteristics are: Strong adhesion, toughness, moisture resistance, water resistance, chemical resistance, and prevent all kinds of ions through the paint film performance, at the same time, the epoxy coal asphalt has the characteristics of expansion and contraction with the coated object, so that the epoxy coal asphalt coating will not appear because of the expansion or contraction of the pipe caused by the peeling and cracking phenomenon.

Epoxy coal asphalt as anticorrosive coating has a high cost performance and can be used for 20 years through engineering tests. The use of epoxy coal asphalt anticorrosive steel pipe environment: seawater or fresh water pipeline outer wall anticorrosive, underground oil pipeline outer wall anticorrosive, thermal pipeline outer wall, sluice anticorrosive face paint and other fields have a good effect.