PEX-Al-PEX Pipe
PEX-Al-PEX Pipe is a type of composite pipe used primarily in plumbing and heating applications. It consists of three layers:
1. Inner and Outer Layers of PEX (Cross-linked Polyethylene): PEX is a durable, flexible, and corrosion-resistant polymer that is commonly used in plumbing systems. It is known for its ability to withstand high temperatures and pressures, making it suitable for both hot and cold water applications.
2. Aluminum Core: Sandwiched between the inner and outer layers of PEX is a layer of aluminum. This aluminum core provides structural stability to the pipe, preventing it from collapsing or expanding excessively under pressure. It also adds strength and rigidity to the pipe, making it more resistant to bending and deformation.
3. Adhesive Layer: To bond the layers of PEX and aluminum together, an adhesive layer is typically used. This ensures that the pipe maintains its integrity and prevents delamination or separation of the layers during installation or use.
PEX-Al-PEX Pipe Advantages
1. Flexibility: Like traditional PEX piping, PEX-AL-PEX is flexible, allowing for easier installation, particularly in tight spaces or when navigating around obstacles.
2. Strength: The aluminum core provides rigidity and strength, preventing the pipe from expanding or contracting excessively under pressure or temperature changes.
3. Corrosion resistance: The aluminum core protects the pipe from corrosion, extending its lifespan and making it suitable for both hot and cold water applications.
4. Temperature resistance: PEX-AL-PEX pipes can withstand higher temperatures compared to regular PEX pipes, making them suitable for applications such as hot water heating systems.
5. Oxygen barrier: The aluminum layer acts as an effective oxygen barrier, preventing the diffusion of oxygen into the water, which helps reduce the risk of corrosion in metal components of the system and maintains water quality.
6. Compatibility: PEX-AL-PEX pipes can be used with both crimp and compression fittings, offering versatility in installation.
PEX-AL-PEX Pipe Applications
1. Potable Water Distribution: PEX-AL-PEX pipes are widely used for carrying potable water in residential, commercial, and industrial buildings. Their corrosion resistance and ability to withstand high temperatures make them ideal for transporting both hot and cold water safely and efficiently.
2. Radiant Floor Heating: These pipes are commonly employed in radiant floor heating systems, where hot water circulates through tubing installed within the floor to provide even and efficient heating. The flexibility of PEX-AL-PEX pipes allows for easy installation in concrete slabs or underfloor heating systems.
3. Hydronic Heating Systems: PEX-AL-PEX pipes are suitable for hydronic heating systems, which use hot water to distribute heat throughout a building via radiators, baseboard heaters, or radiant panels. The pipes' ability to withstand high temperatures and their oxygen barrier properties help maintain system efficiency and longevity.
4. Snow Melting Systems: In colder climates, PEX-AL-PEX pipes are used in snow melting systems installed under driveways, sidewalks, or outdoor stairs. These systems circulate heated water to melt snow and ice, providing safer walking and driving conditions during winter months.
5. Industrial Applications: PEX-AL-PEX pipes are also utilized in various industrial applications where corrosion resistance, temperature stability, and durability are crucial. They may be used for conveying process fluids, chemicals, or compressed air in industrial facilities.
6. Solar Water Heating Systems: PEX-AL-PEX pipes are suitable for solar water heating systems, where they transport heated water from solar collectors to storage tanks or distribution points. Their ability to withstand high temperatures and their resistance to UV radiation make them well-suited for outdoor use in solar applications.
7. Plumbing Retrofits and Renovations: The flexibility and ease of installation of PEX-AL-PEX pipes make them a preferred choice for plumbing retrofits or renovations. They can be easily routed through existing walls, floors, and ceilings without the need for extensive demolition, reducing installation time and cost.
Size
Product | Size | OD | Tolerance | Thickness | Tolerance |
(mm) | (mm) | (mm) | (mm) | (mm) | |
PEX-AL-PEX | 16*2.0 | 16 | +0.3 | 2.0 | +0.2 |
20*2.0 | 20 | +0.3 | 2.0 | +0.2 | |
25*2.5 | 25 | +0.3 | 3.0 | +0.2 | |
32*3.0 | 32 | +0.3 | 3.0 | +0.2 |