Plastic PEX Pipe

Aluminum plastic pipe is a new type of pipe, which is composed of longitudinally welded aluminum pipe, polyethylene plastic inside and outside and hot-melt adhesive between layers. Polyethylene is a clean and odorless plastic with good impact resistance, corrosion resistance and weather resistance. The longitudinal welding of aluminum alloy in the middle layer makes the pipe have the compressive strength of metal, and the impact resistance makes the pipe easy to bend without rebound. Aluminum plastic composite pipe has two characteristics: strong pressure resistance of metal pipe and acid, alkali and corrosion resistance of plastic pipe. Aluminum plastic pipe (aluminum plastic composite pipe) is a popular pipe in the market. Because of its light weight, durability, convenient construction and flexibility, it is more suitable for home decoration. Reasonable use, with a service life of 50 years. The numerical control pipe industry has created aluminum plastic pipes according to the market demand, which are special pipes for heating. UV resistant, anti-aging, numerical control aluminum plastic pipe can effectively prevent fading and aging, protect the pipe, greatly extend the service life, anti creep aging, service life of more than 50 years, synchronized with the building. Hot melt connection to prevent water leakage. The pipes and pipe fittings of the same material are used for hot melt connection, and the joint is fully integrated with the whole system to achieve integration without being affected by frequent cold and hot alternations.

High compressive strength and long service life. According to the test, the service life of the aluminum plastic pipe can reach 50 years within the service pressure range of 10kg, which is the same as the service life of the building. Good thermal conductivity. The thermal conductivity of aluminum plastic composite pipe is 0.45w/mk, 1.5~2 times that of pure plastic pipe such as cross-linked polyethylene pipe. In contrast, it is more conducive to the heat transfer between the pipe and the floor, and the heating system has higher thermal efficiency. Easy bending, no rebound, small bending radius, convenient construction and installation. When laying underground coils for ground radiant heating, there are many bending parts and small bending radius, which are all manually bent. The coefficient of thermal expansion is small and the thermal stability is good. Thermal expansion coefficient of aluminum plastic composite pipe is 2.5 × 10-5 m/MK, equivalent to the linear expansion coefficient of aluminum (2.35 × 10-5 m/MK), close to the linear expansion coefficient of copper (1.89 × 10-5m/MK), less than one sixth of other pure plastic pipes and less than one eighth of cross-linked polyethylene pipes. When the circulating temperature of hot water in the pipe fluctuates greatly, the pipe system size of aluminum plastic composite pipe is very stable, which can avoid damage caused by large expansion or contraction of the pipe.

The aluminum plastic composite pipe of the intermediate aluminum pipe can completely isolate the oxygen penetration, and will not have any impact on the water quality in the system, which is conducive to the operation and maintenance of the entire system. Aluminum plastic pipe is a combination of aluminum and plastic. The inner and outer layers are plastic, and the middle is aluminum. Therefore, aluminum plastic pipe has the common advantages of plastic and metal. It has high toughness, can be bent at will, and can withstand high temperature and high pressure. However, the disadvantages are also obvious. Once the two materials have different degrees of thermal expansion and cold contraction under special circumstances, such as cold winter, the water pipe will expand and crack. Moreover, the outermost layer of the water pipe is a layer of plastic, which is not tightly welded with the new pipe after weathering, and there is also a risk of water leakage.

Compared with aluminum plastic pipe, it has good sealing performance and will not leak no matter how long it is used. Moreover, the inside of the pipe is very smooth, and it is difficult for water to form scale in the pipe, which will not pollute the water quality. As the hot-melt pipe is a plastic product, it is not as good as the aluminum plastic pipe in terms of high temperature resistance and pressure resistance, so it cannot be in a high temperature state for a long time (higher than 95), and the pressure it bears will decrease with the increase of temperature. It can be used as a hot water pipe, but it cannot be buried underground. Most people use the pipe from the top. Why do many families give up aluminum plastic pipes and use hot-melt pipes instead? Everyone knows that the aluminum plastic pipe has not been completely replaced. It would be better if the pipes were grooved and buried underground. Even some big brands can guarantee a 50 year service life.

Hot Tags: plastic pex pipe, China, suppliers, manufacturers, factory, wholesale, cheap, discount, low price, in stock, free sample, PEX Brass Fitting, PEX AL PEX Pipe Laser, Gas PEX AL PEX Pipe, PEX AL PEX Pipe Overlap