Amiblu is the world’s largest supplier of GRP pipe systems and solutions.

Hobas and Flowtite glassfiber reinforced plastic pipe systems by Amiblu are the product of over five decades of innovation, experience and development. We are the largest producer and technology partner for GRP pipes in the world. Because of our composite engineering and material science skills, we offer a product with an expected service life of more than 150 years.

Amiblu’s two specialist technologies – Hobas centrifugally cast and Flowtite filament wound solutions – complement each other perfectly. Both product lines replace traditional corrosion sensitive materials like concrete, iron and steel. And being made of reinforced plastics, they match traditional materials for strength and hugely outperform them on weight, ease of handling, longevity and all-round responsibility.

Most responsible solution in operation

  • Lower pumping cost for water mains
  • Low lifetime maintenance costs
  • Maximum energy outtake from penstocks
  • Expected 150 years lifetime

Most responsible solution installed

  • Low energy consumption in production
  • Low transport costs
  • Faster to install
  • Less disruption through trenchless technologies

Why GRP?

  • Corrosion-free and resistant against chemicals
  • Resistant against abrasion and UV light
  • Light weight reduces transport and installation costs
  • Smooth inner surface guarantees excellent hydraulic flow
  • Excellent long-term stiffness
  • Exceptionally long lifetime of 150 years with a proven global track record of success
  • Innovative engineering and solutions-based approach that increases investment returns compared to traditional pipe materials

Made to last

At a glance – Amiblu’s scope of supply:

  • Diameters DN 200 to 4000 mm
  • Pressure Classes PN 1 to 32 bar
  • Stiffness Classes SN 2500 N/m² and more

Amiblu offers the largest concentration of GRP production in the world with six factories producing:

Amiblu GRP pipe 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.