Metal composite pipe MMPHAKAflex PE-RT I /­ AL /­ PE-RT-I

The extremely flexible HAKA flex metal composite pipe was specially developed for underfloor heating . The innovative interaction of the temperature-resistant polyethylene and an aluminium layer makes the pipe very flexible and thus extremely durable and easy to lay.

Also available as an OEM/­private label product Ø 16 × 2.0 mm in selected coil lengths.

Application areas

  • Surface heating
  • Cooling system
  • Radiator connection


  • No oxygen diffusion thanks to butt-welded aluminium layer
  • Low thermal linear expansion
  • Resistant to numerous chemicals
  • High flexibility and yet dimensionally stable laying
  • No incrustation thanks to the smooth inner pipe surface

Layer composition

1. Inner layer of PE-RT
2. adhesion promotor for a force-fit connection
3. Homogeneous longitudinally butt welded aluminium pipe
4. adhesion promotor for a force-fit connection
5. Outer layer of PE-RT

Product properties



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