How to store PEX - AL - PERT Pipe to prevent aging?

As a supplier of PEX - AL - PERT Pipe, I understand the importance of proper storage to maintain the quality and longevity of this product. PEX - AL - PERT Pipe, which you can learn more about PEX-AL-PERT Pipe, is a popular choice for various plumbing and heating applications due to its excellent properties such as flexibility, corrosion resistance, and high - temperature tolerance. However, if not stored correctly, it can age prematurely, leading to a reduction in its performance and lifespan. In this blog, I will share some scientific and practical tips on how to store PEX - AL - PERT Pipe to prevent aging.

Understanding the Factors that Cause Aging

Before delving into the storage methods, it is crucial to understand the factors that contribute to the aging of PEX - AL - PERT Pipe.

1. Ultraviolet (UV) Radiation

UV radiation from sunlight can cause significant damage to PEX - AL - PERT Pipe. When the pipe is exposed to UV rays, the polymer materials in the pipe can undergo photodegradation. This process breaks down the molecular structure of the polymer, leading to a loss of mechanical properties such as strength and flexibility. Over time, the pipe may become brittle, crack, and lose its ability to withstand pressure.

2. Temperature

Extreme temperatures can also accelerate the aging process of PEX - AL - PERT Pipe. High temperatures can cause the polymer to expand and contract, which can lead to internal stresses within the pipe. Repeated cycles of expansion and contraction can weaken the pipe structure. On the other hand, low temperatures can make the pipe more rigid and prone to cracking.

3. Chemical Exposure

Exposure to certain chemicals can have a detrimental effect on PEX - AL - PERT Pipe. Chemicals such as solvents, oils, and some cleaning agents can react with the polymer materials in the pipe, causing swelling, softening, or degradation of the pipe.

4. Oxidation

Oxidation is a natural process that occurs when the pipe is exposed to oxygen. Over time, oxidation can cause the polymer to become brittle and lose its flexibility. Factors such as high temperature and the presence of catalysts can accelerate the oxidation process.

Storage Recommendations

1. Indoor Storage

Indoor storage is the best option for PEX - AL - PERT Pipe as it provides protection from UV radiation and extreme weather conditions. When storing the pipe indoors, choose a clean, dry, and well - ventilated area. A warehouse or a storage shed is ideal. Make sure the area is free from any sources of heat, such as furnaces or heaters, as high temperatures can accelerate the aging process.

The storage area should also be protected from chemical exposure. Keep the pipe away from any chemicals, solvents, or cleaning agents. If there are chemicals stored in the same area, ensure that they are properly sealed and stored in a separate location to prevent accidental spillage on the pipe.

2. Protection from UV Radiation

If outdoor storage is unavoidable, it is essential to protect the PEX - AL - PERT Pipe from UV radiation. Cover the pipe with a UV - resistant tarp or a shade cloth. The tarp should be tightly secured to prevent sunlight from reaching the pipe. Make sure the tarp is in good condition and does not have any holes or tears that could allow UV rays to penetrate.

It is also recommended to store the pipe in a shaded area, away from direct sunlight. If possible, place the pipe under a building overhang or in a covered storage area.

3. Temperature Control

Maintaining a stable temperature is crucial for preventing the aging of PEX - AL - PERT Pipe. The ideal storage temperature for the pipe is between 10°C and 30°C (50°F and 86°F). Avoid storing the pipe in areas where the temperature can fluctuate significantly, such as near exterior doors or windows.

If the storage area is subject to extreme temperatures, consider using temperature - control measures such as insulation or heating and cooling systems. Insulating the storage area can help to maintain a more stable temperature, while heating and cooling systems can be used to adjust the temperature as needed.

4. Proper Stacking and Support

When stacking PEX - AL - PERT Pipe, it is important to do so properly to prevent damage. Stack the pipe in a stable and orderly manner, making sure that the stacks are not too high to prevent collapse. Use appropriate supports, such as wooden pallets or racks, to keep the pipe off the ground. This helps to prevent moisture damage and allows for better air circulation around the pipe.

Avoid stacking heavy objects on top of the pipe, as this can cause deformation or damage to the pipe. If the pipe is coiled, make sure the coils are not too tightly wound, as this can cause internal stresses within the pipe.

5. Humidity Control

High humidity can also contribute to the aging of PEX - AL - PERT Pipe. Moisture can promote the growth of mold and mildew, which can damage the pipe surface. It can also cause corrosion of the metal layer in the pipe (if applicable).

To control humidity, use a dehumidifier in the storage area if necessary. Keep the relative humidity below 60%. Monitor the humidity levels regularly using a hygrometer and take appropriate measures to adjust the humidity as needed.

Monitoring and Inspection

Even when following the best storage practices, it is important to regularly monitor and inspect the PEX - AL - PERT Pipe. Check for any signs of damage, such as cracks, scratches, or discoloration. Inspect the pipe for any signs of swelling, softening, or brittleness, which may indicate chemical exposure or aging.

If any damage is detected, remove the damaged pipe from the storage area and dispose of it properly. If you notice any signs of aging or degradation, consult with a professional to determine if the pipe is still suitable for use.

Conclusion

Proper storage of PEX - AL - PERT Pipe is essential for preventing aging and maintaining its quality and performance. By understanding the factors that cause aging and following the storage recommendations outlined in this blog, you can ensure that your PEX - AL - PERT Pipe remains in excellent condition for a long time.

As a supplier, we are committed to providing high - quality PEX - AL - PERT Pipe and helping our customers with proper storage and usage. If you are interested in purchasing PEX - AL - PERT Pipe or have any questions about its storage or application, please feel free to contact us for further discussion.

References

1. ASTM International. (20XX). Standard Specification for Crosslinked Polyethylene/Aluminum/Crosslinked Polyethylene (PEX - AL - PEX) Composite Pressure Pipe.
2. Plastics Pipe Institute. (20XX). Technical Handbook for PEX and Multilayer Composite Pipes.
3. Pipe Manufacturers Association. (20XX). Guidelines for Storage and Handling of Plastic Pipes.