What is the difference between stainless steel hose and PPR plastic pipe?
What is the difference between stainless steel hose and PPR plastic pipe?
Now the decoration of the water pipes are mainly divided into: PEX pipe, galvanized pipe, UPVC pipe, aluminum pipe, PPR pipe, copper pipe and stainless steel pipe and so on. In the hidden project, the selection and installation of water pipes have become a problem that can not be ignored in the decoration. At the same time, in order to make the room beautiful, people in the decoration, water pipes are generally used in the construction of buried wall. However, water leaks and bursts can cause irreparable damage. Perhaps some consumers have been deeply affected by this annoying trauma". Such reasons may come from the following aspects: first, the use of plastic pipe itself is not qualified products. The market there are some poor quality, shoddy work of shoddy products, such as compression resistance, thermal expansion coefficient can not meet the requirements, coupled with the construction is not standardized, there will be problems in the project. Second, the plastic pipe itself physical and chemical characteristics of the decision, because the plastic pipe in the corner using metal connection, plastic pipe and metal is not between welding, not screw, but die by special adhesive glue. When the temperature difference is large, such as sudden cooling, the thermal expansion coefficient between the plastic and the metal is different, and the glue is easy to crack, thus causing the water pipe to burst. Third, the aging of plastic pipes. Because plastic contains "plasticizers", it will escape over time and lead to plastic hardening and embrittlement, the sun will also make plastic aging, ozone in the atmosphere of plastic damage. The aging plastic pipe is easy to crack under the shock of water pressure and the impact of water hammer. The survey shows that in the current market are mainly PAP (galvanized steel pipe, aluminum-plastic composite pipe), PPR (polyacrylate composite pipe), UPVC (PVC composite pipe), there are some copper pipes quality and performance are good and the plastic lining of thin-walled stainless steel tube. Because the galvanized steel pipe is not corrosion resistant and antibacterial, and the inner wall has poor resistance to scaling, it is easy to rust into water after prolonged contact with the pipe wall and cause direct pollution of drinking water. At the same time, because it is threaded connection, time for a long time is easy to loose, leakage occurs. Therefore, the country in 2000 has banned the use of cold galvanized steel pipe, and hot-dip galvanized steel pipe is also a deadline. According to statistics, at present in some developed countries and regions in the copper water heating system has accounted for a large proportion, the United States accounted for 81%, accounted for 85% of Canada, Australia accounted for 85%, the UK accounted for 95%, Hongkong accounted for 70%, accounting for 67% of singapore. In recent years, copper pipes have also attracted people's attention in China. In the past, only the use of copper pipes in star rated hotels and high-grade office buildings had become popular in the use of copper tubes in residential buildings. How to choose the decoration materials Home Furnishing pipe copper pipe has excellent performance of other water pipes do not have the characteristics, such as health, copper can inhibit the growth of bacteria, 99% bacteria disappeared in 5 hours after entering the copper pipes, to ensure clean drinking water. And durable, safe performance, life-long maintenance. However, the price of copper water pipe will be slightly higher, for example, the use of ordinary general pipe decoration, in a set of two rooms need to spend 1000 yuan or so, and the use of good performance of copper water pipes need to spend about 1300 yuan. The water supply pipe decoration material and more hidden in the wall, if the pipe rupture or leakage, maintenance must be open abdominal wall, go to war. To prevent leakage of water pipes, the root cause of the problem is the choice of pipe material. 1 copper pipes and copper pipes have been widely used in developed countries. Europe and the United States have been using them for more than 100 years. So far, they are still dominant in the water supply system. The copper water pipe is considered as a "red metal with green face". It has neither the corrosion of metal materials nor the pollution elements of non-metallic materials. The welding process is safe, reliable and non-toxic. Using copper as water supply material can be regarded as a green environmental protection material. 2, stainless steel pipe, stainless steel pipe is also used in western developed countries more water supply pipe. The stainless steel pipe has stable performance, no rust, no two pollution, and ensures the sanitation of the water. But because of the tough and tough texture of the stainless pipe material, it is difficult to tap and cover the wires according to the traditional process, which brings great trouble to the installation and construction, and the price is very expensive. At present, there is a stainless steel winding hose on the market, which solves the problem of difficult installation of stainless steel pipes. This product is specially treated by heat, and can be bent at any angle according to the requirement of the construction environment. It can be well wound and easy to install. As the average stainless steel tube is more expensive, there is an economical thin-walled stainless steel tube, which uses thin wall stainless steel tubes instead of thick wall stainless steel tubes to save raw materials. The price is 40% to 50% cheaper than the thick wall steel pipe. 3, plastic pipes because of plastic light weight, corrosion resistance, water resistance is small, easy to install, rapid, low cost of Engineering advantages, has been widely used at home and abroad. But the plastic pipe is not pressure, not heat, and no fire, burning will produce poisonous gas, in a high fever, high pressure, near fire conditions difficult to use. Its strength, linearity and the temperature difference in extreme regions restrict its application. At present, the plastic tube technology is constantly updated, there have been many high-tech products. Such as cross-linked polyethylene pipe material deformation decreased, impact strength increased, low resistance and high temperature capacity, compared to the traditional polyethylene plastic pipe has a major technical breakthrough. In addition, UPVC plastic water supply pipe, the new pipe material has high cost, and easy processing, with flame retardant resistance, convenient installation, low cost integrated chemical properties and good properties, the thermal expansion coefficient than steel pipe, flexible connection can more effectively solve the problem of thermal expansion and contraction. 4 、 the composite pipe plastic steel composite pipe plastic steel composite pipe is made of composite galvanized pipe with outer layer and polyethylene pipe lining. The plastic steel pipe combines the strength and rigidity of the steel pipe, the corrosion resistance of the plastic pipe, the pollution free, the smooth inner wall and the small water resistance. Plastic pipe has superior performance, price ratio, and can be replaced with the current domestic maximum amount of ordinary galvanized pipe, is currently one of the most popular pipes accepted by the people. Aluminum plastic composite pipe aluminum plastic composite pipe is one of the new pipes which is promoted by the State Construction Committee to replace galvanized pipe. This new type of composite pipe is made of polyethylene (or crosslinked polyethylene) - hot melt - hot melt - aluminum - Polyethylene (XLPE) five layers, with good mechanical properties, corrosion resistance, aging resistance, high temperature performance and health performance, service life of up to 50 years, is a new type of green building materials with environmental protection consciousness. Ultra thin stainless steel plastic composite tube, ultra-thin stainless steel plastic composite pipe, adopts the international standard of dietary hygiene, 304 (Ocr18Ni9) ultra thin stainless steel, lined with different temperature resistance materials. The utility model has the advantages of high surface hardness of the metal material, good overall rigidity, small coefficient of linear expansion, corrosion resistance of the plastic pipe, good insulation and heat insulation performance, and the service life of the utility model can be up to 50 years.
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