Pre-insulated system for above 150 °C

Sliding system for which it is typical that hot-water pipes move inside the insulation when thermally lengthened (shortened) and which it does not transfer forces onto the pipe as its positioning in insulation is sliding.
The insulation and protective jacket stay still in relation to the surrounding environment and the bond between the mineral wool, PUR foam and protective jacket is fixed.
Pipelines may be installed:

Under the ground (not in channels) in the HDPE jacket

Above the ground in the
SPIRO jacket.

The structure of pipes and components working as a sliding system is demanding from the technical perspective and requires cooperation with company employees as early as during the preparation of the initial design of the system.


26,9 – 711 mm

Wall thickness

2,3 – 10 mm


Arc-welded steel pipes
EN 10217-2 , EN 10217-5 (DIN 1626)
Seamless pipes
EN 10216-2 (DIN 1629)

Further information

Hot water pipes are delivered in 6 m (12 m) length.
Service life
When continuously subjected to the thermal load of 150 °C, the service life of METALNET® is 30 years.

Ready to cooperate?

We will be happy to answer your questions.


Professional experience-based comprehensive processing of products