Composite Pipe Company

Dammam, Saudi Arabia

GRP Pipes are Composite materials characterized by high strength, low-weight, high chemical resistance and easiness of manufacturing.

Based on these attributes, GRP pipes have gained great success in Petrochemical plants, Power and Desalination plants, Sanitary sewers, Water transportation and in-plant Piping systems for both Chemical and Sewer treatment plants. This success is based on their chemical resistance, high performance, easiness of manufacturing and installation, and low cost compared to stainless steel pipes or other pipes of inferior performance.

GRP pipes can be produced by both Continuous Filament Winding Process (CFW) and Fixed Mandrel process.

The CFW requires high capital investment, 6-7 MM USD and produces GRP pipes with high production rates per machine, mainly for low-pressure underground applications.

For high-pressure, above ground and special fittings, elbows, tees, wyes, the Fixed Mandrel production method, helical winding, is preferred since it has the following characteristics:

1. Low capital investment which can be accomplished in stages depending on the projects.

2. Produces GRP pipes with high Glass content and high strength, both axially and in circumference.

3. Allows production of short runs and quick change-over to other pipe diameters and Glasses.

4. Latest developments allow the use of 2/3 sand addition to increase pipe stiffness and reduce the cost.

Based on the above facts, Composite Pipe Company in Dammam, Saudi Arabia, a leading company in installation and a GRP pipe manufacturer purchased two production lines and one preparation line from Silvercraft in 19 -  to produce the following GRP pipes and fittings:

a. GRP pipes for above and underground installation from 100 up to 3000 mm.

b. Fittings for these pipes, elbows, tees, wyes, flanges and double bell coupling for connecting the pipes use ReCa type system.

This plant is operational and has produced a lot of GRP pipes of very good quality and GRP tanks with diameters up to 4 meters and 20 m long.

Also, manholes, both structural and liners, are produced using the same equipment, and the production of GRP pipes with up to 40% sand for Sewer applications

is one of their products. The flexibility, which exists by pregelling the liner, allows the use of vinyl ester resin in the liner and both orthophthalic and isophthalic resinsin the structure.