PE-RT pipes with 5 layers from Maincor

Joe Stumpf
2 min readJan 18, 2021
PE-RT production at Maincor

All Maincor PE-RT pipes are 5 layer pipes where the oxygen barrier is located within the pipes wall. This ensures that the oxygen barrier will not be harmed during installation. The structure is pretty good described in the picture below.

5-Layer multi layer pipe from Maincor

The pipes are produced in a so called coextrusion where all layers are extruded in the same time. This process ensures the maximum possible adhesion of the layers.

Coextrusion is the extrusion of multiple layers of material simultaneously. This type of extrusion utilizes two or more extruders (in our case 5) to melt and deliver a steady volumetric throughput of different viscous plastics to a single extrusion head (die) which will extrude the materials in the desired form of a pipe. The layer thicknesses are controlled by the relative speeds and sizes of the individual extruders delivering the materials.

In many real-world scenarios (Underfloor Heating i.e.), a single polymer cannot meet all the demands of an application (Oxygen tightness). Compound extrusion allows a blended material to be extruded, but coextrusion retains the separate materials as different layers in the extruded product, allowing appropriate placement of materials with differing properties such as oxygen permeability, strength, stiffness, and wear resistance.

With the 5 Layer technology the 100% tight oxygen barrier (DIN 4726) is securely packed within two layers of PE-RT. When installing it the barrier will not be harmed while the pipe is pulled over the construction site. Therefore you can be sure that your installation will be oxygen tight and corrotion will be omitted.

If you want to have more information or a deeper insight, just get in contact with me. I am looking forward to get a feedback from you!

Originally published at https://www.linkedin.com.

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Joe Stumpf

I am Area Sales Manager for pipes and fittings for tap water and heating