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Multilayer Pipe Systems: What’s the Difference Between Pex-Al-Pex and Pert-Al-Pert?

Date 27th October 2023 /// Product News
Multilayer Pipe Systems: What’s the Difference Between Pex-Al-Pex and Pert-Al-Pert?

While on the road with plumbers and installers, there’s a topic of conversation that often comes up… What’s the difference between Pex-Al-Pex pipe and Pert-Al-Pert pipe?

Often installers are unaware of the differences between the two types of PEX, stating “but it’s all just multilayer pipe”. Although both are crimped the same, the components and durability offered are very different.

If installers don’t know the difference, how can they accurately choose the right product for their specific installation? So, let’s get into it…

4 Comparisons Between Instantor Pex-Al-Pex and Pert-Al-Pert

1.      Butt Welded vs. Over Lapped

Instantor Pex-Al-Pex is a multilayer pipe constructed using the butt-welding method. This means that two pieces of pipe are joined end-to-end without any overlapping and then welded together to be 100% oxygen and water vapour tight. This provides a more solid and resilient finish when compared to overlapping.

2.      Ability to Withstand High Temperatures

Instantor Pex-Al-Pex pipe can withstand greater pressure over time and temperatures up to 95°C, whereas Pert-Al-Pert can only withstand temperatures up to 60°C.

Did you know that water flow temperature in underfloor heating can reach as high as 65°C?

With this in mind, Pex-Al-Pex is a much more suitable candidate for these systems as it has the ability to withstand such high temperatures. As an installer this is crucial to know, ensuring that you use the right product for the job at hand.

3.      Flexibility at its Finest

Pex-Al-Pex is known for its strong memory and is highly flexible, meaning that when the pipe is bent it will maintain its shape and not damage.

Alternatively, each time that Pert-Al-Pert is bent it can damage and weaken the pipe. There is almost zero memory in Pert-Al-Pert pipe.

Whilst both are easy to cut and fit, this is something to strongly consider, as it will have a different impact from one install to the next.

What Sets Instantor Apart From Other Brands Available on the Market Today?

The Instantor Press System consists of Instantor Press Fittings and Pipe. When the full system is used together, installs are guaranteed for 50 years once carried out correctly. This peace of mind is valuable beyond estimation, allowing installers to walk away without any worries of leaks or callbacks, a Fit and Forget Solution.

Alongside our guarantee is a reliable after-sales service should any queries come about. Our team are always on hand to help resolve any technical issues.

Finally, our Pex-Al-Pex pipe is NSAI certified to EN ISO 21003 and WRAS Approved. Demonstrating that our multilayer pipe is not only backed by installers, but also by some of the most highly respected standard organisations within the plumbing and heating industry.

Instantor Pex-Al-Pex pipe is suitable for a variety of applications including potable water, underfloor heating, and all general plumbing and heating applications.