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GRP Pipes
A Fibreglass Pipe is a composite product made of glass fibers embedded in or surrounded by thermosetting resin which is subsequently cured. Fibreglass pipes include Glass Reinforced Polyester (GRP) pipes, Glass Reinforced Epoxy (GRE) pipes and Glass Reinforced Vinylester (GRV) pipes. Since the 1970s, fibreglass technology has evolved to enable fibreglass to be used as either the pipe material of choice or a feasible alternative for certain applications and across all end-markets, except gas transmission.

Fibreglass possesses certain physical qualities which we believe make it a superior alternative to traditionally used pipe materials. The competitive attributes of Fibreglass are: lightweight, durable, anti-corrosive, efficient carrier and a versatile material.

Product Range of GRP Pipes:
GRP Pipes traded by Sfeir Trading FZC is a composite material system produced from glass fiber reinforcements, thermosetting plastic resins, and additives. By selecting the right amount of materials and the manufacturing process, the designer can create a product to meet the most demanding requirements.

Sfeir Trading FZC is a leading trading company that deals with GRP pipes. GRP pipes are available in nominal diameters ranging from 80mm to 4000mm. Pipes are available at different nominal pressure classes that are PN 3, 6, 10,16, 20, and 25 bars (PN 20 and PN 25 up to ND 2000mm) with stiffness classes of 2500, 5000, 10000, and 12500 N/m2. These pipes can be used for both underground and above ground installations depending whether it is a restrained type pipe system or non-restrained.

Applications:

Fiberglass pipe is used in many industries and for numerous applications including:
Chemical processes, desalination, ducting and vents, geothermal, industrial effluents, irrigation, oil industries, potable water, power plant cooling, raw water, sewers, sea water intake and outfalls, slurry piping, storm sewers, water distribution, water transmission, and in tubing and casing.

Applicable codes and standards:
ASTM D-3262, ASTM D-3517, ASTM D-3754, AWWA C-950, AWWA M-45, and BS 5480.

Characteristics:
GRP pipes are known to be corrosion resistant, with a good strength to weight ratio, non-conductive material, has dimensional stability, low maintenance costs, and flexible.

Construction:

GRP pipe is a composite laminate consisting of three layers mainly. The first layer is a corrosion resistant liner called the inner liner, the second layer is the structure layer, and the external layer is a resin rich layer.

The main three raw materials are:
  1. Resin
  2. Glass
  3. Silica Sand
In process Quality Control:
Quality control testing includes careful checks for incoming raw materials, in process manufactured products, and finished products. All these tests are done according to international standards such as ASTM, BS, EN, and AWWA.

Joining systems and Fittings:

There are several types of joining systems available to GRP pipes. Many of the systems permit angular deflection, while other joining systems are designed to resist longitudinal thrust forces. The most common fittings used are elbows, tees, wyes, flanges, and reducers or laterals. Some client specifications lead to a custom designed spool making it easier for installation.