NORDIWALL HT

THE RESISTANT LINER FOR HIGH-TEMPERATURE PIPES

This rehabilitation technology from NordiTube allows industrial system operators for the first time to rehabilitate pipes exposed to high temperatures.

NordiTube has successfully developed an economical CIPP system which is based on the proven NORDIWALL FLEX needle felt liner – the NORDIWALL HT, that is resistant to temperatures exceeding 100°C.

In combination with the different special resins in NordiTube’s portfolio, a heat resistance between 80°C to 140°C can be achieved thanks to its modified PP coating.

NORDIWALL HT is the economical choice for high-temperature pipe rehabilitation projects. After a successfully completed test phase, the excellent quality of this liner has been validated in a variety of industrial projects, particularly on offshore oil platforms.

GENERAL DESCRIPTION

NORDIWALL HT is an interactive liner system for semi-structural and non-structural applications with classification C according to ISO 11295 (no pinholes covering under class C).

NORDIWALL HT consists of a needle felt liner, having on one side a special coating of modified Polypropylene PP.

Using a two-component epoxy resin system, the uncoated face of NORDIWALL HT is entirely bonded to the host pipe. The product ensures great bonding results within the given temperature range.

The used installation method is an inversion with steam curing and requires a special heating curve to reach the needed glass transition temperature TG.

THE ADVANTAGES AT A GLANCE

  • Temperature resistance up to 140°C
  • Excellent chemical resistance
  • Good performance in bends
  • Excellent adhesion behaviour to resist pressure surge
  • Felt liner coated with modified Polypropylen
  • Class D: Corrosion protection

NORDIWALL HT at a glance

NORDIWALL HT
Application areaPRESSURE and GRAVITY
•High-Temperature
•Industry
Diameter100–1200 mm
MaterialPolyester needled felt
CoatingFPP
Resinr.tec 521-26
Classification according to ISO 11295D

Approved systems in combination with resins from NordiTube available