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Technology

GRP Pipe Technology

Advantages of GRP

Subor GRP Pipes weigh 1/10 of concrete and 1/4 of steel pipes. The lightweight structure not only eliminates the need for expensive handling equipment, but also offers fast and easy installation.

The GRP pipes of different diameters are shipped using special packaging as a nested set without detriment to their hydraulic properties and inner surface smoothness.

This also provides enormous savings in shipping costs.

Subor GRP Pipes weigh 1/10 of concrete and 1/4 of steel pipes. The lightweight structure not only eliminates the need for expensive handling equipment, but also offers fast and easy installation. The GRP pipes of different diameters are shipped using special packaging as a nested set without detriment to their hydraulic properties and inner surface smoothness. This also provides enormous savings in shipping costs.

Pipe Weight GRP Pipe Concrete Pipe DIP
DN1200 Pipe
PN10
SN5000 		DN1200
133 kg/m
ID: 1194 mm - t: 17 mm
Density: 2,03 g/cm3 		DN1200
1.765 kg/m
t: 130 mm 		DN1200
510 kg/m
t: 16 mm

The hydraulic properties of Subor’s GRP Pipes provide stability throughout the operating lifespan as courtesy of their smooth interior surface that prevents the formation of lime and sediment. Unlike conventional pipe systems, this property allows the passage of the same flow rate through smaller pipe diameters in the long run. Besides reducing the energy consumption for pumping at the pumping lines with minimum hydraulic loss, this property allows for an increase in energy generation at the power plants.

Roughness Coefficient
Mannings – n

0,009

Hazen-Williams - C

150

Colebrook-White – k (𝜺)

0,029

Subor GRP Pipes are designed according to the results of “Long Term Tests” with respect to the relevant international standards performed at its own accredited laboratories. Hence, Subor Pipes preserve their initial performance criteria even after a 50-year service life.

With the advantage of using Double Bell Reka Type Coupling, there will be no need for high-qualified workers and welding equipment. As an average, 300 meters of DN1200 mm diameter pipe can be installed by one team in a day.

GRP pipes have a unique feature for hot climate. The mechanical properties of GRP pipes remain the same from -30 °C to +50 °C. The pipe can be installed above ground without any special UV protections.

Continuous Filament
Winding Technology

THE WORLD’S ADVANCED GRP PIPE TECHNOLOGY CONTINUOUS FILAMENT WINDING PROCESS

Continuous Filament Winding Technology is the computer controlled method that involves the winding of the glass fibers around a continuous rotating structure called mandrel.

The glass fibers wound around the internal and external resistance layers to ensure the pipe’s pressure resistance and rigidity, and the chopped glass fibers used on all layers to ensure axial resistance are bound by the thermoset polymerization reaction of the polyester.

The filling material (silica sand) is used on the central layer to enhance the pipe rigidity in a cost effective way.

Non-Circular
Line Technology

Subor provides technical support at every stage of project implementation starting from design to the finalization. Assisting to the proper pipe installation process, our “Field Engineering” department provides supervisory services and technical support during the implementation of project.

Our aim is to ensure the installation in conformance with the procedures and technical specifications of GRP pipes. By means of those services provided by Subor Field Engineering Team, the service life of pipes is extended safely in a cost effective way..

Sustainability

Subor’s approach to a more sustainable business to undertake today’s projects with respect to future generations’ needs.

Sustainable development must consider the effects it has on the economy, society, and environment as a whole. Subor, as a pipe manufacturer calculates the influence of its outputs on these elements at every step of its decision-making process for a sustainable business.

The superior properties of GRP in terms of excellent hydraulic characteristics resulting in higher energy productivity and less pumping energy, high efficient production and transportation methods together with its long life cycle enable Subor to offer the utmost quality with better sustainability to the future.

As a result of having very low environmental impact compared to conventional pipe technologies due to its high level of material efficiency, Subor GRP products have low carbon footprint and offer the best choice for the environment.