PEX-AL-PEX Fitting
Why Choose Us
Timely delivery
We understand the importance of meeting deadlines and ensuring timely delivery of our products. With our efficient logistics network, we can deliver your order promptly, no matter the size or location.
Wide Range of Applications
Our products are widely used in the fields of Residential and commercial water supply, Underfloor heating system, Natural gas transmission, Compressed air lines, etc.
Our Service
we focus on understanding each client's unique needs and offer customized solutions to ensure satisfaction from all clients.
Cutting-edge technology
We constantly invest in the latest technology and machinery to ensure that our manufacturing process is efficient and precise. By staying up-to-date with advancements in the industry, we can deliver pipes that meet the highest standards of quality and performance.
PEX-AL-PEX Fitting?
PEX-AL-PEX fitting refers to a type of plumbing connection specifically designed for use with cross-linked polyethylene tubing, commonly known as PEX tubing. PEX-AL-PEX stands for "cross-linked polyethylene with aluminum" and represents a unique combination where an aluminum layer is sandwiched between two layers of PEX material, offering several benefits over traditional PEX connections.
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Brass PEX-AL-PEX Compression FittingsBrass PEX-AL-PEX compression fittings we produce improve design nuts and wall thickness to ensure a favorable quality-price ratio. We utilize cutting-edge 3D engineering to optimize the design of...read more
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Compression Fitting for PEX-AL-PEX PipeSpecification:DN16-32mmread more
Working temperature:-40℃≤T≤95℃
Cylindrical pipe thread:Comply with ISO230,NPT,BSP
Characteristics Of Pex-Al-Pex Fittings
Structural Integrity: The addition of aluminum in PEX-AL-PEX fitting provides extra strength and resistance to kinking, maintaining the tubing's shape even under pressure.
Heat Conductivity: The aluminum core improves the thermal conductivity of the system, leading to more efficient heat distribution in heating applications.
Corrosion Protection: The aluminum layer acts as a barrier that prevents the diffusion of oxygen, which can potentially lead to corrosion in some heating systems.
Ease of Installation: PEX-AL-PEX fittings are typically engineered for swift and simple installation, reducing time and effort during plumbing setup.
Temperature Tolerance: PEX-AL-PEX can tolerate a broader temperature range compared to regular PEX, making it appropriate for applications involving hot and cold water lines.
Versatility: PEX-AL-PEX fittings are versatile and can be employed in various plumbing and heating projects, ranging from residential to commercial and industrial environments.
Leak Prevention: The multilayer construction of PEX-AL-PEX fittings helps mitigate the risk of leaks, especially in applications like underground or radiant heating where exposure to external elements is high.
Standard Connectivity: Despite the added aluminum layer, PEX-AL-PEX fittings remain compatible with standard PEX connection methods, such as the use of crimp rings or clamp connectors.
What are the benefits of PEX-AL-PEX Fitting?
Improved Structural Strength
The aluminum layer in PEX-AL-PEX fittings provides extra support, preventing kinks and maintaining the tubing's shape under pressure.
Broad Temperature Tolerance
PEX-AL-PEX fittings can withstand a wider temperature range compared to regular PEX, making them suitable for hot and cold water lines.
Leak Prevention
The multilayer construction of PEX-AL-PEX fittings helps minimize the risk of leaks, particularly in applications like underground or radiant heating where exposure to external elements is high.
Standard Connectivity
Despite the additional aluminum layer, PEX-AL-PEX fittings remain compatible with standard PEX connection methods, such as crimp rings or clamp connectors.
Enhanced Heat Transfer
The aluminum core enhances thermal conductivity, ensuring more efficient heat distribution in heating applications.
Corrosion Resistance
The aluminum layer acts as a barrier, reducing the risk of oxygen diffusion that can lead to corrosion in some heating systems.
Easy Installation
PEX-AL-PEX fittings are designed for quick and easy installation, saving time and effort during plumbing setup.
Versatility
PEX-AL-PEX fittings are versatile and can be used in various plumbing and heating projects, from residential to commercial and industrial settings.
Do PEX-AL-PEX Fitting require special tools for installation?




PEX-AL-PEX fittings are commonly used in plumbing systems for connecting PEX and aluminum pipes. These fittings offer durability and reliability, but do they require special tools for installation? Here are some key points to consider:
Basic tools: Installing PEX-AL-PEX fittings requires certain basic tools that are commonly used in plumbing projects. These tools include a pipe cutter, adjustable wrenches, and a deburring tool. These tools are essential for cutting the pipes to the required length, removing burrs, and tightening the fittings securely.
Crimping tool: One of the main tools required for installing PEX-AL-PEX fittings is a crimping tool. This tool is used to create a tight seal between the fitting and the pipe. It ensures a strong connection by compressing a copper ring or sleeve around the pipe and the fitting. The crimping tool is specifically designed for use with PEX-AL-PEX fittings and is not interchangeable with tools used for other types of connections.
Calibration gauges: To ensure accurate and secure connections, calibration gauges are often used when installing PEX-AL-PEX fittings. These gauges are used to measure the depth of the fitting inside the crimp connection, ensuring that it meets the manufacturer's specifications. Proper calibration helps to avoid overcrimping or undercrimping, which can lead to leaks or other issues.
Expanding tool: In some cases, PEX-AL-PEX fittings may require the use of an expanding tool. This tool is used to create an expanded end on the PEX pipe, allowing it to fit securely into the fitting. The expanding tool stretches the pipe, making it slightly larger in diameter to accommodate the fitting before it returns to its original shape. This method provides a secure and leak-free connection.
PEX shears: While not specifically required for PEX-AL-PEX fittings, PEX shears are recommended for cutting PEX pipes cleanly and evenly. These tools have a special design that prevents crushing or deforming the pipe during cutting, resulting in a clean and precise cut. This can help to ensure a better fit and seal when installing the fittings.
How long do PEX-AL-PEX Fitting typically last?
Material quality
The quality of the PEX-AL-PEX fitting plays a significant role in its lifespan. Higher-quality fittings made from durable materials tend to have a longer lifespan compared to lower-quality ones.


Operating conditions
The operating conditions, such as water temperature and pressure, can impact the lifespan of PEX-AL-PEX fittings. Higher temperatures or excessive pressure can put more stress on the fittings, potentially reducing their lifespan.
Installation
Proper installation is crucial for the longevity of PEX-AL-PEX fittings. If the fittings are installed correctly, with appropriate tools and techniques, they are more likely to last longer.


Water quality
The quality of the water flowing through the PEX-AL-PEX fittings can also affect their lifespan. Water with high levels of minerals, chemicals, or corrosive elements may cause degradation or damage to the fittings over time.
Maintenance
Regular maintenance and inspection of PEX-AL-PEX fittings can help identify any issues early on and prevent further damage. Periodic checks for leaks, corrosion, or other signs of wear can extend the lifespan of the fittings.


Lifespan estimation
On average, PEX-AL-PEX fittings can last anywhere from 25 to 50 years or more, depending on the factors mentioned above. However, it's important to note that this is an estimate, and the actual lifespan can vary.
Application of PEX-AL-PEX Fitting
Radiant Heating Systems
PEX-AL-PEX fittings are widely used in radiant floor heating installations due to their superior heat transfer capabilities and resistance to leaks.
Hydronic Heating
These fittings are ideal for hydronic heating applications, where hot water circulates through pipes to provide warmth to buildings.
Underfloor Heating
When installing underfloor heating, PEX-AL-PEX fittings offer a reliable solution for connecting the pipes and maintaining consistent heat distribution.
Snow Melting Systems
For melting snow on driveways, walkways, and stairs, PEX-AL-PEX fittings are utilized to set up functional and durable snow melting systems.
Domestic Water Supply
PEX-AL-PEX fittings can be utilized in potable water supply systems, ensuring safe and efficient delivery of water throughout homes and commercial establishments.
Frost Protection
In agricultural settings, PEX-AL-PEX fittings can be employed to prevent pipes from freezing by allowing for the efficient circulation of warm water around vulnerable areas.
Industrial Applications
Beyond residential and commercial uses, PEX-AL-PEX fittings find applications in certain industrial processes that require the conveyance of water or other compatible fluids.
Geothermal Systems
In geothermal heating and cooling systems, PEX-AL-PEX fittings contribute to the effective transfer of heat from the earth to the building's interior.
Material: PEX-AL-PEX fitting is made up of multiple layers, including an inner layer of cross-linked polyethylene (PEX), an aluminum layer in the middle, and an outer layer of PEX. This construction provides durability and flexibility.
Size Range: PEX-AL-PEX fittings come in various sizes, including 16mm, 20mm, 25mm, 32mm, 40mm, 50mm, and 63mm, catering to different plumbing needs.
Pressure Rating: These fittings are designed to handle high-pressure applications. They can typically withstand pressures up to 1.25 MPa (12.5 bar) or even higher, depending on the specific design and application.
Temperature Range: PEX-AL-PEX fittings offer excellent temperature resistance. They can operate in temperatures ranging from -40°C to 95°C, making them suitable for both hot and cold water systems.
Connection Method: PEX-AL-PEX fittings are commonly used with compression fittings or push-fit connections. These fittings provide a secure and leak-free joint, ensuring efficient water flow.
Corrosion Resistance: The aluminum layer in PEX-AL-PEX fittings provides excellent corrosion resistance. This makes them suitable for various plumbing applications, including both domestic and commercial use.
Flexibility: PEX-AL-PEX fittings offer flexibility, allowing them to be bent and shaped without the need for additional fittings. This flexibility simplifies installation, especially in complex plumbing systems.
Chemical Resistance: PEX-AL-PEX fittings exhibit excellent resistance to a wide range of chemicals, ensuring compatibility with different water supply systems and plumbing materials.
Longevity: These fittings are designed to be long-lasting, with a lifespan of at least 50 years when installed and maintained correctly. This durability reduces the need for frequent replacements and repairs.
Applications: PEX-AL-PEX fittings are commonly used in various plumbing systems, including potable water supply, radiant floor heating, hydronic heating, and solar thermal systems.
Connection Method of PEX-AL-PEX Fitting
Crimp Ring Connection: This method involves using a crimp tool to compress a metal sleeve (crimp ring) onto the PEX tubing to create a secure connection with the PEX-AL-PEX fitting.
Clamp Connection: A clamp connector is another popular way to join PEX tubing to a PEX-AL-PEX fitting. It works by tightening a clamp around the tubing and the fitting using a wrench.
Push-Fit Connection: Some PEX-AL-PEX fittings feature a push-fit design that allows the tubing to be inserted into the fitting without the need for special tools. Once in place, the tubing is locked securely within the fitting.
Expansion Connection: This method uses an expansion tool to slightly expand the diameter of the PEX tubing, which is then slipped over the PEX-AL-PEX fitting and allowed to contract back to its original size, creating a tight fit.
Compression Connection: Compression fittings are screwed onto the end of the PEX tubing and the PEX-AL-PEX fitting, using a compression nut and ferrule to create a leak-resistant seal.
Barbed Connection: Certain PEX-AL-PEX fittings have barbs that grip the inside of the PEX tubing when it is pushed onto the fitting. A clamp or hose wrap may be used to provide additional security.
Heat-Shrink Connection: With this method, a heat-shrink sleeve is placed over the joint between the PEX tubing and the PEX-AL-PEX fitting. Heat is applied to shrink the sleeve tightly around the connection, sealing out moisture.
Slide-On Connection: Simple and tool-free, this method allows the PEX tubing to be slid directly onto the PEX-AL-PEX fitting until it reaches the shoulder of the fitting, where it will rest securely.
Our Factory
We deliver at mass volumes thanks to the efficiency of more than 100 employees working on 12 pipe production lines (4 lines for PPR pipe, 3 lines for Overlapped Ultrasonice welding PEX-AL-PEX pipe, 3 lines for butt-welded PEX-AL-PEX pipe and 2 lines for single-layer PEX/PERT pipe) and 100+ injection machines, forging machines and CNC machines for plastic and brass fitting. Production capacity reaches 100 containers of pipes per year and 100 tons of fittings per month.

FAQ
As one of the leading pex-al-pex fitting manufacturers and suppliers in China, we warmly welcome you to wholesale cheap pex-al-pex fitting made in China here from our factory. All our products are with high quality and low price. Contact us for pricelist.
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