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48 Tube Products International May 2015
OCTG & pipel ine products
Polyethylene piping with
abrasion-resistant lining
Kingfisher’s K-Pipe WRP is a polymer-
lined high-density polyethylene (PE-HD)
abrasion-resistant piping system that is
suitable for movement of liquids, sludge
and slurry containing abrasive media
and contaminants.
K-Pipe WRP is used within a variety of
industrial sectors for the hydraulic and
pneumatic conveyance of materials, and
offers an inner wear-resistant polymer
within its matrix that enhances the
service life of the pipe when exposed to
abrasive media. It is manufactured via
an automated extrusion process that
incorporates a traditional HDPE outer
sleeve and fuses an inner wear-resistant
polymer sleeve utilising a patented
technology that eliminates the potential
for delimitation in service.
This results in a system being less
expensive than the traditional range
of metallics and ceramics used for
handling abrasive materials such as
ash, coal, minerals and other highly
abrasive materials.
K-Pipe WRP’s abrasion-resistant lining
layer is selected for the medium being
transported. After an assessment has
been made of the composition of the
medium and the operating conditions,
the most appropriate liner material
can be selected from a range of high-
resistance polymers.
Offering a turnkey package, Kingfisher
works directly with each user to calculate
the pipeline’s design life, which deter-
mines the thickness of the abrasion-
resistant layer. This allows an optimum
solution that combines high resistance
towards abrasion and chemicals with
lightweight yet durable pipework that is
quick and easy to install.
The K-Pipe WRP system allows extra
thicknesses of the wear-resistant inner
polymer to be incorporated, which in
areas such as bends and branches
where the abrasive effects of the media
are most significant results in improved
service and performance.
Another advantage of K-Pipe WRP is
that the system can be joined using
a specially developed butt-fusion
technology and electro fusion couplings,
which results in welded joints as strong
and as smooth as the pipe itself.
Alternatively, flanges and mechanical
sealing joints can be used in the same
fashion as steel pipes. Dependent on
the inner bore size, which ranges from
63 to 800mm, pipes can be supplied in
lengths up to 500m, which reduces the
number of joints and reduces installation
time.
The physical flexibility of the HDPE
outer surface is an asset in many cases
as it is able to absorb stresses caused
by soil or ground movement, both
the minor movements of settling and
more major movements, for example
in earthquake-prone areas. Being a
plastic, there is no need to paint or
coat it to protect it from most corrosive
environments.
Kingfisher Industrial Ltd – UK
Line pipe coating to improve field joint bonds
Bredero Shaw’s SureBond™ onshore
pipe coating was developed to match or
exceed the performance of three-layer
coating products.
Formulated with a proprietary molecular
structure, SureBond is claimed to
provide better pipe protection and
superior bonding with all field joints.
It eliminates the often-
problematic adhesive layer,
while providing strong,
virtually permanent protection
of the anti-corrosion layer.
The SureBond product line
performs across a wide
temperature range, from
-70°C to 100°C, with low
temperature bending and
thermal cycling performance,
a known limitation of three-
layer systems.
“SureBond opens up an
important new category
of line pipe coating,” said Cedric
Oudinot, global product line manager
at Bredero Shaw. “It offers significant
benefits for operators – and it’s
competitively priced, so they get a
superior solution without having to pay
more.”
Bredero Shaw, a division of ShawCor,
provides specialised coating systems
and related services for corrosion
protection, insulation and weight
coating applications on land and marine
pipelines, including highly engineered
corrosion and insulation systems for
deepwater applications.
Bredero Shaw – USA
The new SureBond onshore pipe coating
Abrasion-resistant K-Pipe WRP