Coarse NaCl Tailing

Coarse NaCl Tailing

ICL group,
Dead Sea Works
Israel | 1992

Working conditions:
Extremely highly corrosive and
highly abrasive material. Exposure to
constant direct sunlight. Challenging
ambient temperature ranging from
6°C to 46°C (43°F to 115°F)
Pipes used:
Pexgol 400 mm OD Class 10, 450
mm OD Class 10 and 500 mm OD Class 8
Dredged material transportation,
at 30% concentration with particles
size from 2-300 mm
More than 5,000 meters

The Challenge
The Dead Sea, located in the Jordan Rift Valley of Israel, is 9.6 times saltier than
the ocean, and also known for its high salinity.
The high salinity of brine and the water evaporation creates a constant build-up
of salt crystals which requires to be removed. These rough crystal formations
are highly abrasive and corrosive. The high temperatures of the area makes
material selection more challenging. The salt slurry properties were so harsh
that the dredging operators found it necessary to replace their original pipeline
every three months due to wear related failures. Before turning to Pexgol, our
client tried a number of alternative piping solutions without success:
• Rubber pipes – which proved to be easily damaged by the severe weather
conditions and harsh abrasion. This required expensive replacement and
• Steel pipes – which were also shown to be easily damaged by the tough
climate. In addition, the pipelines weren’t flexible enough, and salt
accumulated inside the pipe, causing backup, clogging and low performance.
• HDPE pipes – which did not survive the abrasion of the coarse environment,
and as a result, endured a very short lifetime.
The Solution
Pexgol proved to be the best solution for the client and lasted throughout
the first phase of the project without experiencing any failures in the
pipeline. The second phase of this project is scheduled for 2017.
By selecting Pexgol, the operator was able to increase his MTBF from 2,500
hours to 43,000 hours (or from three months to 60), which happened to be
the remaining lifetime of the project. Without Pexgol, the client would have had
to change the entire pipeline almost 20 times during the life of the project.

• High resistance to wear:
Pexgol is the preferred solution for abrasive materials transportation. Typically resists three times more than HDPE and twice more than steel.
• Excellent chemical and corrosion resistance:
Pexgol pipes can resist a wide range of chemical agents, slurries, toxic and radioactive materials.
• High temperature resistance:
Working temperatures can range from -50°C/-58°F up to 110°C/230°F.
• Superb internal and external corrosion resistance:
Our pipes are proven to withstand decades of exposure to corrosive environments, with nonstop performance in some of the world’s harshest
• Low weight:
Compared to steel or rubber, Pexgol’s solution results in reduced transportation, storage and labor costs due to lower weight per meter.
• Long pipe sections:
Pexgol’s pipes can be supplied in long lengths coils, reducing number of joints, installation time and risk.
• Long pipe sections:
Pexgol’s pipes can be supplied in long lengths coils, reducing number of joints, installation time and risk.
• Creep and impact resistance:
Pexgol’s crosslinking piping solution can withstand high amounts of axial and radial stresses and are highly resistant to impact, fracture and fatigue.
Our pipes are also completely resistant to cracks – even when dragged over sharp rocky terrain and coagulated salt crystals.


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