GRP Sewer and Drainage Pipes
Our promise: Long-term performance with minimal environmental impact
Urban sewer and drainage networks are under increasing pressure from aging infrastructure, climate change, and rapid urbanisation. Cities today need infrastructure that is not only strong and durable, but sustainable, adaptable, and easy to implement – systems that can serve for many decades without wearing out the planet.
Amiblu delivers sewer and drainage systems engineered to withstand generations of use – resisting corrosion and ensuring stable operation with minimal maintenance. Our GRP pipes reduce lifecycle emissions and costs while outperforming traditional materials, like steel, concrete and iron.
Amiblu pipe systems are designed for the
full range of installation methods
Why choose Amiblu solutions for sewer and drainage
GRP is resistant to chemical attack and abrasive wear, ensuring structural integrity and long-lasting performance even in aggressive wastewater environments. A smooth inner surface (Colebrook White k=0.01) prevents sedimentation and blockages, providing excellent hydraulic performance and lower energy costs.
We provide a full portfolio of pipes, fittings, leak-tight joints, and manholes. All components can be tailored and configured to meet the specific requirements of each project.
Lightweight GRP pipes are easy to handle and transport, enabling quicker installation and reduced equipment use, which lowers overall construction and project costs.
Our team of experts supports your project at every stage, helping you navigate challenges and achieve the best outcome. We provide application engineering services and on-site support to ensure a reliable, well-designed solution.
Designed for every challenge
Our durable, corrosion-free GRP pipes and fittings are ideal for building new or replacing outdated sewer and drainage pipelines with solutions that are more sustainable and future-proof – ready for today’s and tomorrow’s challenges. They deliver long-term structural stability, excellent hydraulics, efficient installation, and a significantly lower CO₂ footprint. With customised fittings and smart manholes equipped with pumps and valves, Amiblu systems integrate seamlessly into existing water networks. We offer solutions for all major installation methods, including buried, above-ground, and jacking – depending on project needs.
Amiblu offers trenchless rehabilitation solutions that renew ageing pipelines with minimal disruption. Our GRP pipes restore circular sewers through sliplining, improving structural strength and hydraulic performance while extending service life for decades. For non-circular or irregular profiles, Amiblu NC Line provides custom-shaped GRP liners that fit the existing host pipe precisely, enabling efficient, sustainable renewal even in dense urban environments. Together, these solutions offer a durable, corrosion-free, and low-impact way to revitalise pipeline networks without major excavation.
Amiblu stormwater retention systems capture, hold, and control excess stormwater to prevent flooding, reduce pressure on wastewater treatment plants, and improve the overall resilience of urban drainage systems.
For combined sewers we offer Amiblu Amiscreen system that filters suspended solids from combined sewage before overflow, safeguarding rivers and lakes from contamination. With no moving parts and minimal maintenance, it offers a robust, energy-free, and sustainable way to protect natural waters during heavy rains.
Products used in our solutions for sewer and drainage
Non-pressure (gravity) pipes
Amiblu Hobas
Centrifugally cast pipe designed for exceptional acid resistance. Typically used for sewer, drainage, and stormwater applications. Water jetting resistant according to DIN 19523.
| Diameter Range (DN) | Pressure (PN) | Stiffness (SN) | Nominal Lengths |
|---|---|---|---|
| 200-3600 mm | 1 bar | up to 10 000 N/m² | 6 & 3 m |
Amiblu Flowtite
Filament wound pipe designed for exceptional acid resistance. Typically used for sewer and stormwater applications. Water jetting resistant according to DIN 19523.
| Diameter Range (DN) | Pressure (PN) | Stiffness (SN) | Nominal Lengths |
|---|---|---|---|
| 300-3000 mm | 1 bar | up to 10 000 N/m² | 12, 6, 3 m |
Amiblu NC Line
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. They can be customised according to customer demands and easily adapted to different types of shapes and geometries.
| Shape | Nominal lengths | Nominal Height | Nominal breadth | Thickness |
|---|---|---|---|---|
| Customisable | 300-3000 mm | 800-3000 mm | 600-3000 mm | Load carrying and non load carrying profiles available |
Jacking pipes
Amiblu Hobas
Centrifugally cast pipe designed to withstand high jacking forces. Typically used for jacking under structures like roads and railways. Water jetting resistant according to DIN 19523.
| Diameter Range (DN) | Pressure (PN) | Nominal Lengths | Stiffness (SN) |
|---|---|---|---|
| 272-3600 mm | 1 bar | 1-6 m | 32000 up to 1000000 N/m² |
High-wear (abrasion-resistant liners)
Hobas PU Line
Centrifugally cast pipe designed for exceptional wear resistance and low head loss. Typically used for sewer, drainage, and stormwater applications. Water jetting resistant according to DIN 19523.
| Diameter Range (DN) | Pressure (PN) | Nominal Lengths | Stiffness (SN) |
|---|---|---|---|
| 1200-3600 mm | 1 bar | 6 & 3 m | 10000 N/m² |
Flowtite Orange
Highly impact and abrasion resistant pipe that can be used in applications with extreme wear exposure and high flow velocities.
| Diameter Range (DN) | Pressure (PN) | Nominal Lengths | Stiffness (SN) |
|---|---|---|---|
| 300-3000 mm | up to 32 bar | 12, 6, 3 m | 5000/10000 N/m² |
Joints and couplings
Hobas filament wound coupling
| Diameter Range (DN) | Pressure (PN) | Angular deflection* |
|---|---|---|
| 200-2555 mm | 1 bar | up to 3° |
* The degree of angular deflection is dependent on the pipe diameter. Contact your local supplier for more information.
Amiblu non-pressure coupling
| Diameter Range (DN) | Pressure (PN) | Angular deflection* |
|---|---|---|
| 300-3000 mm | 1 bar | up to 3° |
* The degree of angular deflection is dependent on the pipe diameter. Contact your local supplier for more information.
Flowtite non-pressure coupling
| Diameter Range (DN) | Pressure (PN) | Angular deflection* |
|---|---|---|
| 300-3000 mm | 1 bar | up to 3° |
* The degree of angular deflection is dependent on the pipe diameter. Contact your local supplier for more information.
GRP Sleeve
This flush GRP coupling with an EPDM rubber gasket integrated into the spigot end of the pipe is used for non-pressure jacking applications (PN 1). It can be manufactured in various diameters to meet specific project and installation requirements.
| Diameter Range (DN) | Pressure (PN) |
|---|---|
| 272-3600 mm | 1 bar |
Stainless steel coupling for gravity applications
This flush joint consists of a stainless steel sleeve with integrated full-surface EPDM rubber gasket and is suitable for non-pressure jacking applications. Due to its low wall thickness, it allows for comparatively higher jacking forces on the pipe.
| Diameter Range (DN) | Pressure (PN) |
|---|---|
| 272-3600 mm | 1 bar |
Other joints and couplings
Field joints for pressure & gravity applications
Laminated field joints are available in uniaxial and biaxial designs. Amiblu provides the necessary instructions or skilled personnel for butt-wrap joining in pressure and non-pressure applications. Technologies developed by Amiblu provide faster and more cost-efficient installations.
Masonry couplings
The masonry coupling is used for connecting pipes to concrete shafts and walls. Masonry couplings are sanded for improved stability in concrete shafts. Masonry couplings can be delivered with pipe ring, and optionally with sealing tape. Lengths can be selected as required in consideration of the pipe joint data.
Mechanical couplings
Amiblu pipes can be joined using mechanical steel couplings such as tangential bolt couplings or axial bolt couplings.
Amiblu flanges
Amiblu manufactures and sells flanges in various designs and according to different standards and requirements. When connecting two GRP flanges, the standard bolt pattern to which flanges are manufactured is EN 1092. Other bolting dimension systems such as according to AWWA, ANSI, DIN, and JIS can be supplied.
Fittings and manholes
Elbow
| Diameter Range (DN) | Pressure (PN) |
|---|---|
| 200-4000 mm | up to 32 bar |
Reducer
| Diameter Range (DN) | Pressure (PN) |
|---|---|
| 200-4000 mm | up to 32 bar |
T-Piece
| Diameter Range (DN) | Pressure (PN) |
|---|---|
| 200-4000 mm | up to 32 bar |
Flange
| Diameter Range (DN) | Pressure (PN) |
|---|---|
| 200-4000 mm | up to 32 bar |
Saddle
| Diameter Range (DN) | Pressure (PN) |
|---|---|
| 200-4000 mm | 1 bar |
Y-Piece
| Diameter Range (DN) | Pressure (PN) |
|---|---|
| 200-4000 mm | up to 10 bar |
Standard Manhole
Manholes are commonly delivered with berm, ladder, and manhole cover. Further accessories and manhole diameters are available on request. Standard Amiblu manholes meet the requirements of EN 15383.
| Diameter (DN) main pipe |
|---|
| 1000-3000 mm |
Tangential Manhole
Manholes are commonly delivered with berm, ladder, and manhole cover. Further accessories and manhole diameters are available on request.
| Diameter (DN) main pipe | Diameter (DN) tangential manhole |
|---|---|
| 1000-3000 mm | 1000-1200 mm |
Amiblu sewer & drainage projects around the world
The greenest pipe is the one you don’t need to replace
Learn more about how GRP outperforms other materials and how Amiblu is tackling the world’s water crisis.