Comopex Oxygen Barrier

highest specification pipes & fittings

Como-pex Oxygen Barrier Particularly for central heating and underfloor heating installations (closed circuits), Interplast manufactures Cross Linked Polyethylene pipe with an oxygen barrier.

The Como-pex Oxygen Barrier pipe consists of 3 layers:


-Inner layer of Cross Linked Polyethylene

-Bonding layer for better adhesion of EVOH to the main pipe

-Oxygen Barrier layer (EVOH-ethylene vinyl alcohol polymer)

Interplast manufactures a wide range of pipes for hot and cold-water plumbing installations. Como-pex pipes made of cross-linked polyethylene are manufactured in cross-sections ranging from 12mm to 32mm and are available in coils or straight sections.

They have an estimated lifespan of over 50 years, at temperatures up to 95oC and operating pressures 6 to 10 bar. Temperature peaks of 110oC at 4 bar pressure do not affect Como pex pipes as their cross-linked structure enables them to return to their original shape.

Como-pex pipes are manufactured with or without oxygen barrier and meet and exceed European standard EN 12318 and German DIN 16892/16893. The oxygen barrier pipes also meet DIN 4726 and are suitably designed for use in heating installations. The external EVOH layer prevents oxygen from entering the pipe and the consequent corrosion of the metal components of the system.

The exceptional performance of cross-linked polyethylene pipes at high temperatures reaching 110°C and high pressure up to 24 bar, a lifespan of at least 50 years, their widespread use over the past 35 years and the following properties, have made them the most popular pipes for heating systems all over the world.


  • Excellent thermal properties
  • Thermal memory
  • Chemical resistance
  • Resistant to corrosion
  • Mechanical strength
  • Low friction factor
  • Clean and non-toxic
  • Noise-free
  • Certified
  • Guaranteed