GRP/FRP Pipes

GCER – Manufacturer of Composite pipes in Tunisia

GCER industrial pipes manufacturing capacity benefits from its large production facility on a vast industrial site. GCER produces a large range of pipes and accessories for industrial applications made of different types of resins to answer our customers various projects’ needs: Polyester, vinylester or orthophtalic resins.

GCER industrial pipes production

Combining fiberglass and a liner pipe provides the benefit of each element: The Fiberglass brings strong mechanical resistance and modulus. The resins bring a low density and a good chemical resistance. With these two sets of qualities, GRP/dual laminate composites become suitable for extreme conditions, solving challenges for aggressive corrosive fluid transport at high temperature and/or pressure conditions. These pipes can be used for :
• Drinking water supply
• Waste-water industrial remediation and household sanitation
• Cooling networks
• Submarine outfall
• Hydroelectric power plant
• Seawater desalination unit
• Effluent discharge, cooling or heating systems

• Chemical industry

Flame-resistant pipes

GCER has developed a flame resistant pipe system. Such piping systems are generally used in the petroleum and energy industries.
A solution of special resin mixed with specific additives improves the pipes ability to withstand fire as tested and guaranteed by the following standards :

  • IMO Resolution A 753
  • ISO 14692-2 Annex E

GCER GRP and thermoplastic pipes and products

Features and advantages

The development of composite materials around us is spectacular. All experts predict them an even brighter future: we even proposed to call this period, the age of composites. The features and advantages of SVR – GRP pipes, make them the recommended product in terms of cost and durability.

Features

Advantages

Corrosion
  • Long life

  • Low maintenance cost

  • Hydraulic properties are maintained over time

  • No need for liner, coating, cathodic protection or other corrosion preventing form

Light weight (1/4 the weight of the steel or cast iron and 1/10 of the weight of the concrete)
  • Lower transportation costs

  • Removing the need for expensive pipe handling equipment

Effective length of the tubes (6, 12m)
  • Reduces the number of nesting therefore increases raises rates

  • A greater number of tubes by truck reduces transportation costs

Surface intérieure lisse
  • lower pressure drop
    clean manufacturing

  • Technology, which means lower cleaning costs

Manufacturing system complying with the most stringent manufacturing standards

  • The high quality of the product guarantees reliability worldwide

Tube structure

I = Sail 

II = Mat

IV = sail trim

e1 = anticorrosion layer

e2 = strength layer

a resin-rich layer. The thickness of the layer and the type of resin depends on the nature of the fluid in the tube and the operating conditions.

manufactured by continuous filament winding, made of vinyl or polyester coated glass fiber resin, and deposited on a rotating mandrel by a machine. This machine consists of a rotating mandrel, a distributor arm – which moves along the rotating mandrel depositing the materials on a well-defined angle, a storage area for the glass fiber and a hot resin.

The mandrel may be replaced by a tube made of the required material and thus, it will constitute the tube liner.

This manufacturing technique allows the use of glass fiber reinforcement in the circumferential direction. During the use of these buried pipes or high pressure applications, the majority of the load is concentrated in the circumferential direction of the tube; this is why the incorporation of continuous glass fiber reinforcement in this direction provides a product with a better yield.

The winding angle is a fundamental parameter for all VSP / GRP pipes made by filament winding. This angle directly regulates the ratio between the circumferential and the axial characteristics of the designed pipe and it is the ratio of the

circumferential pressure (hoop tension) and the axial pressure (axial tensile strength). A pipe designed with a winding angle exceeding 65 ° is a pipe with optimal circumferential properties but low axial performance. For underground installations, a winding angle close to 65 ° is proposed to provide superior resistance against the load on the ground, vertical loads and internal pressure. On the other hand, for aerial installations, the winding angle will be close to 55º, since the tube must be provided with superior characteristics in the axial direction.

Silica can also be used, as it increases the stiffness of the tubes.

Quality

GCER pipes and fittings are submitted to strict controls to verify their compliance with the existing norms.

 
QUALITE-TUBE-1
QUALITE-TUBE-2

Product range

GCER extensive range of pipes and fittings meets the demande and expectations of any application in all sorts of industries.

Pipes :

GCER wide range of pipes varies according to their diameterspressure and stiffness.

Pressure range (in bars) available :

1 (gravity-fed) . 6 . 10 . 16 . 20 . 25 . 32

Standard diameter range (in mm):

80 . 100 · 150 · 200 · 250 · 300 · 350 · 400 · 450 · 500 · 600 · 700 · 800 · 900 · 1000 1100 · 1200 · 1400 · 1600 · 1800

Pipes standard length 6 and 12 ml :

DN

80

100

150

200

250

300

350

400

450

500

600

700

800

L(ml)

6

6

6

6

6

10

10

10

10

12

12

10

12

DN
900
1000

1100

1200

1400

1500

1600

1800

L(ml)

9

12

5

10

10

6

6

6

For underground pipes GCER offers the following pipes with the following set of stiffness :

Stiffness class SN

Rigidity (N/m²)

Rigidity (ASTM) (pls)

2500

2500

18

5000

5000

30

10000

10000

72

Other stiffness values are available upon request.

Assemblage​

The most commonly used join due to the benefits it offers :

The BELL part is created when the pipe is manufactured
The Spigot is obtained by machining

Hydraulic tightness is guaranteed by elastomeric o-ring gaskets positioned in grooves machined on the Spigot part.

A key-lock inserted in the groove through the bell part spreads out axial loads along the tube, increasing its resistance to longitudinal stresses.

This is a permanent joint consisting of

Fiberglass layers reinforcement laminated with resin wrapped around the end of the pipe. The laminated joint thickness and width depend on the pressure and tube diameter.

This method is used to connect pipes to other elements of the system, for example a valve.  

Contact us

PlainHill is a GCER partner in Latin America , it is an engineering, project management and field services consultants team up to quickly and precisely identify the needs of our clients and the elaboration innovative and cost-effective solutions that make sense to them.