缺点：但连接时需要专用工具 ,连接表面需加热 ,加热时间过长或承插口插入过度会造成水流堵塞。
2、铜管：是水管中的上等品，铜在化学活性排序中的序位很低 ,比氢还靠后 ,因而性能稳定 ,不易腐蚀。据有关资料介绍 ,铜能抑制细菌的生长 ,保持饮用水的清洁卫生。
7、衬 PVC镀锌钢管：衬 PVC镀锌钢管兼有金属管材强度大、刚性好和塑料管材耐腐蚀的优点，同时也克服了两类材料的缺点。
缺点：管道内实际使用管径变小 ;对环境温度和介质温度变化大时 ,容易产生离层而导致管材质量下降。
Commonly used water supply pipe: PPR pipe, copper pipe, aluminum plastic pipe, galvanized pipe, PVC pipe, thin-walled stainless steel pipe, lined with PVC stainless steel pipe. Let kang mei tube industry introduce for everybody one by one below.
1, PPR tube: as a new water pipe material, PPR tube has unique advantages, non-toxic health, can be used as cold water pipe, can also be used as hot water pipe.
Advantages: moderate price, stable performance, heat and heat preservation, corrosion resistance, smooth inner wall, safe and reliable pipeline system, no penetration, service life can reach 50 years.
Disadvantages: but special tools are needed for connection, and the connection surface needs to be heated. Excessive heating time or excessive socket plug insertion will cause water flow blockage.
2, copper tube: it is the first-class product in the water pipe, the sequence of copper in the chemical activity sort is very low, than hydrogen is still behind, so the performance is stable, not easy to corrosion. According to relevant data, copper can inhibit the growth of bacteria, keep drinking water clean and sanitary.
Advantages: high strength, stable performance, sterilization, and not easy to corrosion.
Disadvantages: high price, difficult construction, in cold winter, easy to cause heat loss, energy consumption, high use cost.
3. Alumino-plastic pipe: alumino-plastic pipe was once a popular pipe material in the market. Due to its light weight, durability and convenient construction, its bendability is more suitable for use in home decoration. In decorating a concept to compare new guangdong and Shanghai, aluminous plastic tube already did not have the market gradually, belong to the product that is eliminated.
Advantage: the price is cheaper, can bend arbitrarily, the surface is smooth, construction is convenient.
Disadvantages: easy aging, hidden trouble, short service life, practice has proved that the pipe connection is prone to leakage.
4, galvanized pipe: for a long time without the water pipe, you suddenly open unexpectedly found that the outflow is "yellow" water, before the old house galvanized iron pipe in such a thing, such "yellow" water is also harmful to the human body. Since 2000, galvanized pipes have been banned. At present, cold water pipes in new residential areas have been rarely used galvanized pipes.
Advantages: a complete range of fittings, supporting more.
Disadvantages: belong to the national ban on the use of obsolete products, easy to corrosion and rust, resulting in poor water flow, easy to cause water pollution.
5, PVC pipe: in fact, it is a plastic pipe, the joint is generally with adhesive. Because its ability to resist freezing and heat is not good, so it is difficult to use as a hot water pipe; Strength is also not suitable for water pipe pressure requirements, so cold water pipe is rarely used. In most cases, PVC pipes are suitable for electrical wiring and sewage pipes. In addition, PVC become more soft chemical additives phthalide, on the human body kidney, liver, testicle impact is very big, will lead to cancer, kidney damage, so we are not recommended to buy.
Advantages: lightweight, easy to install, low cost, and not prone to corruption.
Disadvantages: poor quality will be very brittle, easy to break, when the heat is easy to deformation.
6, thin-walled stainless steel tube: thin-walled stainless steel tube corrosion resistance is not easy to rust, safe and reliable use of impact resistance, relatively low thermal conductivity. But the price of stainless steel tube is relatively higher, in addition should be used in the selection of water chlorine water chlorine ion stainless steel model. Thin - walled stainless steel pipe connection has welding, thread, sealing pressure and other methods.
Advantages: not easy oxidation rust, strong impact, low heat conduction.
Disadvantages: the cost is higher, should use water chloride ion resistant stainless steel model.
7, lined with PVC galvanized steel pipe: lined with PVC galvanized steel pipe not only has the advantages of high strength, good rigidity and corrosion resistance of plastic pipe, but also overcomes the disadvantages of the two kinds of materials.
Advantages: pipe fitting matching more, complete specifications.
Disadvantages: smaller pipe diameter in actual use; When the temperature of the environment and the temperature of the medium changes greatly, it is easy to produce separation and lead to the decline of the quality of the pipe.
After the above introduction to the advantages and disadvantages of kangmei water supply pipes and fittings classification, do you know how to choose the pipes you need? Want to know more about the tube fitting information, please continue to pay attention to the company's official website.