15NEW PE-Xc Hot Pipes


Material: PE-Xc / EVOH / PE-Xc

Standard: EN ISO 15875, DIN 4726

Details: Five-layer, particularly resistant pipe of cross- polyethylene PE-Xc with increased heat resistance (acc. to EN ISO 15875), with an oxygen barrier of EVOH according to DIN 4726, Tmax 110°C.




Dimension Unit Large package Small package Weight
Catalog number D [mm] s [mm] I [mm]
16 x 2,0 m 200 cardboard 0,090 0,60 AA121016200 16 2,0 200
16 x 2,0 m 400 foil 0,090 0,60 AA121016400 16 2,0 400
17 x 2,0 m 200 cardboard 0,100 0,60 AA121017200 17 2,0 200
17 x 2,0 m 400 foil 0,100 0,60 AA121017400 17 2,0 400
18 x 2,0 m 200 cardboard 0,110 0,60 AA121018200 18 2,0 200
18 x 2,0 m 400 foil 0,110 0,60 AA121018400 18 2,0 400
20 x 2,0 m 200 cardboard 0,125 0,60 AA121020200 20 2,0 200
20 x 2,0 m 400 foil 0,125 0,60 AA121020400 20 2,0 400


Demands on the heating pipe:

The most important component of a heating system is the heating pipe.

The PE-Xc 5-layer heating pipe provides the following benefits:

* very good long-term resistance during the internal pressure test

* good thermal ageing stability, thus no damages caused by thermal ageing when used in ccordance with the regulations

* stress cracking resistance

* good resistance to authorized chemical solvents, i.e. also resistant to heating water additives such as inhibitors

* oxygen tightness according to DIN 4726

* installation at low temperatures possible without heat treatment

* laying with narrow bending radii

* corrosion resistance

* smooth pipe walls, i.e. minimal pressure loss and no incrustations

* good rapid crack propagation resistance and abrasion resistance

* impact resistance at low temperatures

The ALMATHERM electron beam cross-linked PE-Xc heating pipe has all these properties. The requirements set forth in EN ISO 15875-1 for PE-Xc pipes and in DIN 4726 for heating pipes are met and even surpassed.


Classification of operating conditions according to EN ISO 15875-1:


Standard PE-Xc pipes:


Raw Material:

The basic material consists of high density polyethylene types of a high molecular weight supplied by renowned raw material producers. Special additives prevent thermal degradation and the influence of metal ions (e.g. of brass fittings).


Pipe Production:

The pipes are extruded in a pipe extrusion process on state-of-the-art manufacturing plants, which have been optimized for the processing of polyethylene of high molecular weight. The multilayer structure is produced in a specially devoloped co-extrusion process. The outer protective layer of this special 5-layer-pipe keeps the oxygen barrier safe from mechanical influences.



Crosslinking, i.e. the linking of the polyethylene molecules to a macromolecule with a spatial network is continuously done after extrusion by fast high-energy electrons on Europe's most modern and efficient electron accelerators.

Due to the crosslinking the known dropping of the internal pressure resistance - particularly when higher temperatures are concerned - is avoided. In addition, the pipe is insensitive to stress cracking and the influence of chemicals ensured by the crosslinking procedure.


Technical properties of the ALMATHERM PE-Xc pipes:


Quality assurance by internal control:

During production the PE-Xc pipe of ALMATHERM has to undergo strict controls according to the relevant product standards such as EN ISO 15875 and DIN 4726.

Among other investigations, the following tests are made:

* preprocessing control of the raw material charges

* dimensional continuity and accuracy of the pipes

* mechanical-technological tests according to standard, eg internal pressure test


Quality assurance by external control:

The most important characteristics are constantly tested within the scope of supervision contracts.


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