Non-Circular GRP Pipe & Fittings

Non-Circular GRP Pipe & Fittings

Non-circular Glass Reinforced Polyester (GRP) pipe and fittings are suited for both the trenchless rehabilitation and open-trench construction of sewage and wastewater pipelines.

Our range of non-circular GRP pipe and fittings are manufactured using a high-strength filament winding process and can be made to virtually any shape.

  • Comes in a variety of profiles, including egg, elliptical, oval and others.

  • Custom profiles, fittings and manholes available.

  • High bending strength provides new structural integrity to existing channel walls.

  • Available stiffness ratings between SN 2500 - SN 10,000.

  • Easy to install rubber ring joint (RRJ) and laminated joint options available.

  • Engineered for a 100+ year design life.

Overview

The GRP non-circular pipe is unique because it offers more stability than a pipe liner for rehabilitation projects. It provides structural strength to the existing channel walls for a longer design life.

Our suite of non-circular GRP pipe and fittings are readily available in a range of standard pipe lengths of between two and three meters, which are suitable for most applications.

However, we also have the capability to provide lengths of up to six meters depending on unique project requirements.

The interior of the pipe wall is resistant to the abrasion effect of wastewater and has excellent hydraulic properties.

Non-circular pipe rehabilitation and pipe storage

Diagram of non-circular GRP pipe

Pipe details Socket details
Nominal size (mm) Radius (mm) Max. Pipe length (mm) Overall size (mm)
a/b r L A B
240/360 120 4600 290 410
300/450 150 4600 362 512
400/600 200 4600 480 680
500/750 250 4600 545 830
508/762 254 6000 548 842
600/900 300 4600 548 980
680/1020 340 6000 770 1110
700/1050 350 4600 790 1140
800/1200 400 3000 900 1300
900/1350 450 2300 1025 1475
1000/1500 500 2300 1135 1635
1200/1800 600 2300 1355 1955