GRP pipes with Amiblu NC Line technology

Amiblu NC Line pipes with their non-circular cross-sections are ideal for relining old city sewers, culverts and channels that often hold non-circular shapes. Amiblu non-circular pipes are also used for open trench applications. The non-circular profiles are produced using a filament winding technology. Resin-filled continuous and chopped glass fibers are wound on a rotating non-circular mandrel in a controlled process. Using this technology, a very dense laminate is created that maximizes the contribution from the three basic raw materials: glass fibers, resin and sand. Amiblu NC Line can be customized according to customer demands and easily be adapted to different types of shapes and geometries.

Non-circular Amiblu pipes meet the requirements of ISO 16611. The ISO 16611: 2017 sets strict guidelines for how non-circular pipes can be produced and tested. External bodies confirm Amiblu compliance.

Technical data Amiblu NC Line pipes

Main materialsresin, glassfibers, sand
Operating temperature-50 °C to +50 °C, higher temperatures may be considered for individual projects
Cross sections (height/width)300-4000 mm
Pressure rangePN 1
Expected service lifemore than 150 years
Corrosion protectionnone needed, as materials used are inherently resistant to corrosion
Water jetting resistancetested according to DIN 19523

NC Line projects around the world

Rury Hobas PU Line Zbiornik Roztoki Bystrzyckie, Polska

Rury Hobas PU Line w projekcie budowy zbiornika Roztoki Bystrzyckie

System przelewowy suchego zbiornika przeciwpowodziowego Od…
Stauraumkanal Mülheim

Regenwassermanagement in Mülheim an der Ruhr

  Stimmiges Regenwassermanagement mit Amiblu GFKRohren…
Amiblu France NC Line Relining in Dieppe Cours de Dakar

New wastewater treatment plant for Beirolas

In the citiy of Lisbon, Flowtite pressure pipeline and fittings…

Unsafe bridge culvert restored for future generations

Kent County Council‘s programme of planned highways maintenance…

Resilient stormwater management in Preston, UK

During AMP 6 United Utilities invested £20m into Preston WwTW…


Technical data

Diameter, pressure, stiffness, and so much more… All the technical hard facts you need to plan, lay, and operate our pipelines.


Reference database

Over 30,000 projects in over 125 countries in over 60 years: Discover spectacular and technically challenging construction works with Amiblu’s technologies (Flowtite, Hobas, Amiblu, Amiscreen) in our reference database.


Our footprint

We aim to have life cycle assessments for all products by end of 2022 and a carbon-neutral pipe production by 2030. We use the resources we have—our business, our voice, and our network—to fight the climate crisis and inspire people around the globe to value water as we should.