Introduction for aluminum plastic pipe

Aluminum plastic pipe in the world

Nowadays People may be familiar with aluminum-plastic pipes already, we usually call PAP pipe in short. But to truly understand it, we have to start with its origin. The full name of aluminum-plastic pipe should be aluminum-plastic composite pipe. Its invention originated in the United Kingdom. In the 1970s, British expert Dr. Lzhak Barnoach proposed an idea to pass high-density PE (plastic) through PE hot-melt additives. Like making five plywood, it is formed with aluminum alloy through high heat and high pressure, using a combination of physical compounding and chemical compounding to form an aluminum-plastic composite pipe. After years of improvements by experts from European and American countries, great progress has been made in production technology and quality. By the late 1980s, aluminum-plastic composite pipes had been widely used in developed countries. The current usage rate of water supply pipes in Japan reached 87%, and the usage rate of gas pipelines in the United States and Denmark was as high as 90%.

Aluminum plastic pipe in China

Since aluminum-plastic composite pipes are a new type of pipe material that is in line with China’s

industrial policies and the development direction of high-tech products, the Ministry of Construction proposed the idea and plan to develop and sell aluminum-plastic composite pipes in 1992. In 1995, an official document was issued to promote aluminum-plastic composite pipes as an alternative to metal pipes, which has a huge potential market in China. The production technology of aluminum-plastic composite pipes is the most advanced in Germany, especially the German company UNIKE, which has the most advanced patented technology.

Application

Aluminum plastic pipes are widely used in ordinary drinking water pipes, high temperature resistant pipes, gas pipes, condensed water, oxygen, compressed air, other chemical liquid pipes, natural gas, liquefied gas, and pex al pex gas pipes.

How to choose an authentic aluminum-plastic composite pipe?

Understand its basic structure and advantages

How to choose an authentic aluminum-plastic composite pipe? First, we must understand its basic structure and advantages. The aluminum-plastic composite pipe has five layers. The inner and outer layers are made of polyethylene, and the middle layer is made of aluminum foil. There is also a layer of adhesive between the two materials, and the five layers are tightly integrated into one. Its superior properties include: stable chemical properties, corrosion resistance, non-toxic and non-polluting, smooth surface and inner wall, no scaling, light weight, free bending, good toughness, unique environmental protection and energy saving advantages.

At present, there are many brands of aluminum-plastic composite pipes in China, and the selection of raw materials, chemical additives, production technology and production equipment is uneven. Some brands use low-quality, low-price, and poor-performance materials in the selection of raw materials and adhesives. Their production technology is backward and they cannot realize five-layer co-extrusion. The aluminum-plastic composite pipes produced in this way have poor quality, price, and installation and use. Naturally, it is much lower than the brands with excellent quality.

Choose qualified products with complete supporting services

If the product is qualified, there must be corresponding and complete supporting services. The product quality is excellent and the service measures are complete. The brand with the excellent quality and complete after-sales service is the best choice of consumers.

How many types for PAP Aluminum plastic pipe? 

The development of PEX-AL-PEX gas pipes

The development of PEX-AL-PEX gas pipes represents an evolution in materials and technology within the plumbing and gas distribution industries. Here’s an overview of the development of PEX-AL-PEX gas pipes:

1. Introduction of PEX Technology:

The development of PEX (cross-linked polyethylene) as a material began in the 1960s. Initial research focused on enhancing the properties of polyethylene to create a more durable and heat-resistant material.

2. Early Use in Plumbing Systems:

PEX gained popularity in Europe in the 1970s for plumbing applications due to its flexibility, corrosion resistance, and ease of installation.

3.Expansion to North America:

In the 1980s, PEX technology made its way to North America. It was initially used in residential plumbing systems as a flexible and cost-effective alternative to traditional rigid materials.

4. Advancements in PEX Manufacturing:

Throughout the 1990s and into the 2000s, there were continuous advancements in PEX manufacturing processes. These advancements aimed to improve the overall performance, durability, and suitability of PEX for various applications.

5. Introduction of PEX-AL-PEX:

The concept of PEX-AL-PEX emerged as an evolution of traditional PEX pipes in the early 2000s. PEX-AL-PEX pipes feature an aluminum layer sandwiched between two layers of PEX. This design combines the flexibility of PEX with the added strength and rigidity provided by the aluminum layer.

6. Benefits of PEX-AL-PEX:

The addition of the aluminum layer in PEX-AL-PEX pipes addressed certain limitations of traditional PEX, such as its potential for deformation under high pressure or temperature. The aluminum layer enhances the overall strength, durability, and resistance to thermal expansion and contraction.

7. Application in Gas Distribution:

PEX-AL-PEX pipes found application in gas distribution systems, providing a reliable and corrosion-resistant solution for conveying natural gas. The flexibility of PEX combined with the strength of aluminum made these pipes suitable for a range of gas piping applications.

8. Industry Standards and Code Recognition:

Over time, industry standards were developed to guide the manufacturing and installation of PEX-AL-PEX pipes. Building codes and regulations were updated to include PEX-AL-PEX as an approved material for gas distribution systems.

9. Widespread Adoption:

PEX-AL-PEX gas pipes are now widely adopted in both residential and commercial gas distribution applications. They are recognized for their versatility, ease of installation, and ability to provide a reliable and durable solution for conveying natural gas.

The development of PEX-AL-PEX gas pipes reflects a commitment to improving the performance and safety of plumbing and gas distribution systems. Ongoing research and innovation continue to shape the use of PEX-AL-PEX and other materials in response to evolving industry needs and standards.

Features and advantages of PE-AL-PE and PEX-AL-PEX gas pipes

The gas-specific aluminum-plastic pipes is PE-AL-PE and PEX-AL-PEX gas pipes, which have below features and advantages：

1.     Corrosion resistance: The outer layer of aluminum-plastic composite pipes is covered with a layer of aluminum, which has excellent corrosion resistance and can maintain the integrity of the pipes in harsh environments.

2.     Pressure resistance: The aluminum layer of the aluminum-plastic composite pipe can withstand high pressure and maintain the integrity of the pipe under high pressure.

3.     Heat resistance: The aluminum layer of the aluminum-plastic composite pipe can withstand high temperature performance and maintain the integrity of the pipe in high temperature environments.

4.     Small flow resistance: The inner wall of the aluminum-plastic pipe for gas is smooth, the fluid resistance is small, and the long-distance transportation capability is strong.

5.     Good wear resistance: The aluminum-plastic composite pipe has good wear resistance and will not cause pipe wall wear or secondary pollution.

 Precautions for using PE-AL-PE and PEX-AL-PEX for gas

Although the PE-AL-PE and PEX-AL-PEX for gas has good performance and safety, you still need to pay attention to the following matters when using it：

1. Ensure material quality: Choose high-quality PE-AL-PE and PEX-AL-PEX materials for gas and avoid using inferior materials.

2. Installation suggestions: Before installation, you should carefully check whether there are foreign objects on the outside and inside of the PE-AL-PE and PEX-AL-PEX, and whether the pipe connection structure is firm.

3. Usage environment: Pay attention to the laying environment of the pipeline during installation, and avoid use in corrosive media such as strong chemicals or high temperature environments.

4. Regular inspection: PE-AL-PE and PEX-AL-PEX gas pipe should be inspected regularly to detect and eliminate hidden pipeline faults in a timely manner.

5. Pipeline maintenance: PE-AL-PE and PEX-AL-PEX pipes for gas need to be properly maintained and maintained after use to avoid problems such as pipe aging and cracking.

As social infrastructure, the safety of gas pipelines is of vital importance. According to relevant data, compared with traditional iron pipes and steel-plastic composite pipes, PE-AL-PE and PEX-AL-PEX pipelines for gas have better corrosion resistance, pressure bearing capacity and service life, which can better ensure the safety of pipelines. At the same time, when using PE-AL-PE and PEX-AL-PEX for gas, you also need to pay attention to usage precautions and maintenance requirements to ensure the safety of the pipes.

PE-AL-PE and PEX-AL-PEX plastic pipe for gas is a pipe material with good performance and safety, which can replace traditional iron pipes and steel-plastic composite pipes to a certain extent. The use of PE-AL-PE and PEX-AL-PEX for gas requires precautions and maintenance requirements, and regular testing is required to ensure the safe use of gas pipelines.

About VPEXCO PAP Pipe

VPEXCO PAP pipe has excellent durability and stability, and experiments have proven that it can be used continuously for more than 50 years. It is widely used in homes, outdoors and large sports venues. Because it is lightweight, durable and easy to construct, its bendability is more suitable for use in home decoration.

The characteristic of VPEXO aluminum-plastic pipe is that the middle aluminum layer can 100% isolate gas penetration, and the pipe has the advantages of both metal and plastic pipes. And it has outstanding hygienic performance: the inner and outer layers of the aluminum-plastic pipe are made of special polyethylene materials, which are clean and non-toxic. The most important thing is that the middle layer of the aluminum-plastic pipe is aluminum, which not only blocks light but also blocks oxygen.

As we all know, the environment for the growth of microorganisms must have light and oxygen. The middle aluminum layer of the aluminum-plastic pipe prevents the growth of microorganisms and algae, which is beyond the reach of all-plastic pipes. Not only do all-plastic pipes themselves add a large amount of antioxidants to prevent material degradation, but the antioxidants are extracted into the water retained in the pipes, which can easily cause water pollution.

Moreover, because there are no light-blocking and oxygen-blocking materials in the all-plastic pipes, it is very easy for microorganisms to breed. And lead to secondary pollution of water quality. Moreover, the pipe is extremely resistant to high temperatures and can be used for 50 years at a test temperature of 95 degrees. VPEXO aluminum-plastic pipes are “hand-picked” as the preferred cold and hot water supply pipes and ideal heating pipes due to their unparalleled advantages.

Compared with other pipes, aluminum-plastic composite pipes are quite mature in China, have complete product standards and application specifications, and are widely accepted by the market. The rapid development trend of VPEXO aluminum-plastic composite pipes outside the Chinese market also confirms this fact: According to statistics from the German KWD Plastics Information Center, in Europe, aluminum-plastic pipes are increasing at a rate of more than 20% per year, and the usage far exceeds PPR. , PB and other plastic pipes.

For more information, welcome to contact export@vpexco.com