Aluminum-plastic pipe brand recommends how to identify the quality of aluminum-plastic pipe

We, living in the 21st century now, basically need to use aluminum plastic pipes in their daily lives. Aluminum-plastic pipe It is mainly a kind of aluminum tube in the middle, and the outer layer is a new control material composed of polyethylene plastic and layers of hot-melt adhesive. Because polyethylene is a non-toxic, non-odorous plastic, and polyethylene itself has good corrosion, weather resistance and crash resistance, the compressive strength and impact resistance of aluminum tubes can make the tube easy to bend. Was bounced. Aluminum-plastic pipe is now a popular pipe material on the market, because aluminum-plastic pipe is light and durable and easy to use in construction, so it is liked by people and can be used in home improvement. So, what are some good aluminum-plastic pipe brands ? Below I recommend several good aluminum-plastic tube brands for everyone to refer to when you buy!

Aluminum-plastic pipe classification

According to usage, there are ordinary drinking water pipes, high temperature resistant pipes, gas pipes, and the characteristics and uses of various pipes are as follows:

① Aluminum-plastic composite pipe for ordinary drinking water: white L mark, applicable scope: domestic water, condensate, oxygen, compressed air, other chemical liquid pipes

② Aluminum-plastic composite pipe for high temperature resistance: red R mark, mainly used for hot water and heating pipeline system with long-term working water temperature of 95 ℃.

③ Aluminum-plastic composite pipe for gas: yellow Q mark, mainly used to transport natural gas, liquefied gas, and gas pipeline systems.

④ When the pipeline is constructed, it must comply with the corresponding technical regulations.

Aluminum-plastic pipe use

Hot and cold water piping system

The interior of the aluminum-plastic composite pipe is smooth, non-corrosive, and does not form scale, which is 30% larger than the metal pipe flow. It is easy to bend, can be installed directly beyond the beam and column, can be buried in the wall and concrete, and a simple metal detector can detect the installation location, so the pipe is very suitable for cold and hot water pipes in industrial and civil buildings System use.

Department of Indoor Gas Pipeline

The longitudinally welded aluminum tube is sandwiched between plastics, so that the all-round tube can withstand higher working pressure, and the gas (oxygen) permeability is zero, and the length of the tube can reduce the joints to avoid leakage, so this tube is used for compressed air and gas , Oxygen and other gas transmission lines are safe and reliable.

Solar air conditioning piping system

The aluminum-plastic composite pipe is not easy to frost, and has good thermal insulation, which improves the efficiency of solar energy and air conditioning systems.

The advantages of aluminum-plastic pipes can be summarized into the following three aspects:

1. Outstanding hygiene performance: The inner and outer layers of aluminum-plastic pipes are made of special polyethylene materials, which are clean and non-toxic. The most important thing is that the middle layer of aluminum-plastic pipe is aluminum, which can not only block light, but also block oxygen. As we all know, the environment of living microorganisms must have light and oxygen. The aluminum layer in the middle of the aluminum-plastic pipe prevents the growth of microorganisms and algae, which is beyond the reach of the plastic pipe. Not only does it add a lot of antioxidants to prevent the material from degrading, but the extraction of antioxidants into the water trapped in the pipeline is likely to cause water pollution, and because there is no light-blocking and oxygen-blocking material in the plastic pipe, it is very prone to microorganisms. And lead to secondary pollution of water quality.

2. Excellent high and low temperature resistance: long-term use temperature of 95 degrees (50 years, IMPa), maximum use temperature of 110 degrees, and small coefficient of thermal expansion of aluminum-plastic pipes. It has a thermal expansion coefficient equivalent to that of aluminum, only one-sixth of that of all-plastic pipes. When the temperature changes, the amount of deformation is small, and the aluminum-plastic pipe is a flexible coil. The pipe itself can digest a certain amount of deformation without causing thermal expansion deformation of the pipeline system. The high and low temperature resistance of all plastic pipes is relatively poor. The long-term use temperature of PPR is only 70 degrees (50 years, IMPa) and the maximum use temperature is 95 degrees. At the same time, the expansion coefficient of the PPR pipeline is large, and there is a large amount of original deformation when the external water temperature (cold and hot water) changes. Because the PPR pipe is a rigid straight pipe, it cannot digest the deformation itself, so it is easy to cause the system to bend and even leak.

3. Long service life: When it comes to service life, the most impressed words are "Rifeng tube, Jinde tube, Meifeng tube. It has been used for fifty years". As the leading enterprise of aluminum-plastic pipes, Foshan Rifeng Enterprise is "healthy and beautiful, leading in quality" and "five years of usefulness" is a commitment to consumers and a confidence in aluminum-plastic pipes. The PE plastic used in the tube, the molecular chain structure (-CH2-CH2-) is relatively stable in the plastic, and because the aluminum layer in the middle of the aluminum-plastic tube isolates the inner and outer layers, the outer plastic allows the addition of a stabilizer sufficient to resist light and oxygen aging Without affecting the sanitation of the inner layer in contact with water, thereby enhancing its anti-aging properties.

Aluminum plastic tube brand

At present, aluminum-plastic pipes, domestically produced aluminum-plastic pipes, are mainly in Foshan, Guangdong, where they have the best reputation and are in a leading position. The aluminum-plastic pipes in Foshan are mainly of relatively stable quality and relatively reliable prices. At present, it is mainly identified by the national technical supervision department in the market, and the enterprises that are identified as reliable and stable quality are mainly in the country: Foshan, Guangdong, Foshan, Guangdong, Foshan, Meifeng, Liaoning, Shenyang, Jinde, Liansu aluminum pipes, etc. The aluminum-plastic pipe brand in the region is the best, the price and quality are the most stable, and it is worthy of people's trust. It is recommended to use the aluminum-plastic pipe directly to contact the manufacturers in these areas to purchase, and the cost can be appropriately reduced. The aluminum-plastic pipe is recommended to use The quality must be good, and the quality must have guaranteed aluminum-plastic pipes. At present, the advertisements of the two brands of aluminum-plastic pipes of Foshan Rifeng and Foshan Jinde are so loud. As for the endorsement fees of the advertisements, they are naturally borne by consumers. Bear, so relatively speaking, Foshan Meifeng's aluminum-plastic pipe prices should be appropriately cheaper than those of Nifeng and Jinde. And Meifeng's aluminum-plastic pipes are actually good. Many coastal areas use this brand more. The brand's reputation and quality are also good.

Identification of aluminum-plastic pipes

There are several methods to identify the quality of aluminum-plastic composite pipes:

Impact method: Randomly select a section of aluminum-plastic composite tube and impact with a harder object. The surface of the tube will be bent. If it is deformed to break, it will be of poor quality; if the deformed surface cannot be restored, it will be of general texture; after deformation, it can be restored to immediately The original form is high-quality aluminum-plastic pipe.

Visual inspection method: high-quality aluminum-plastic tube has uniform color / code, no color difference, and roundness is less than 0.1; the middle aluminum layer has a tight interface and no rough marks; the inner and outer surfaces are smooth / smooth, and there must be no obvious scratches / dents / bubble / dead material Bus line

Touch method: Take a square piece of aluminum-plastic pipe and cut it vertically, and use your fingers to extend into the pipe. The mouth of the high-quality pipe is smooth and has no texture; the mouth of the pipe has no burrs.

Comparison method: 1. Comparison of raw materials. At present, the PE materials of high-quality aluminum-plastic composite pipes in the domestic market are all from abroad, such as the United States and South Korea. If the raw materials are from recycled materials, the quality cannot be guaranteed. 2. For physical comparison, compare aluminum-plastic pipes of different brands one by one from the above aspects to achieve optimal selection.

Editor's summary: The above is the introduction of how to identify the quality of aluminum-plastic pipes. However, aluminum-plastic pipes also have their own shortcomings. When they are used as hot water pipes, they have long-term control. The material is thermally expanded and contracted, so the misalignment of the aluminum tube is serious, which may lead to the leakage of controlled materials. Because the inner and outer layers of the aluminum-plastic pipe are special polyethylene materials, it is clean and non-toxic, and the pipe is smooth. So it can be used for more than fifty years.

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