Can Ridgistorm-XL
be recycled?
What quality standards
does Ridgistorm-XL meet?
Do Ridgistorm-XL pipes
deform under loading?
What happens to the
Ridgistorm-XL joints when
deformation occurs?
Does Ridgistorm-XL have
a proven track record?
What is the Co-efficient
of friction for the
Ridgistorm-XL pipes?
Are Ridgistorm-XL pipes
abrasion resistant?
Are Ridgistorm-XL pipes
UV resistant?
What is the standard
bedding detail for
Ridgistorm-XL pipes?
Are Ridgistorm-XL pipes
easy to handle and store
on-site?
How should Ridgistorm-XL
pipes be stored?
Can Ridgistorm-XL
be recycled?
Ridgistorm-XL is manufactured from
Polyethylene and is 100% recyclable at
the end of its useful life.
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What quality standards
does Ridgistorm-XL meet?
Ridgistorm-XL is designed to meet the
performance requirements of the European
Sewer pipe standard BS EN 13476.
Ridgistorm-XL also meets the requirements
of DIN 16961.
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Do Ridgistorm-XL pipes
deform under loading?
Ridgistorm-XL pipes are designed to deform.
The deflection of flexible pipes is controlled by
the settlement of the soil. After settlement,
traffic and other loads do not affect pipe
deflection. With rigid materials such as
concrete, traffic and other loads must be
resisted by the pipe itself, making the pipe
prone to cracking. However with flexible pipes
such as Ridgistorm-XL the surrounding soil
absorbs the stresses ensuring that the
pipeline remains intact.

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What happens to the
Ridgistorm-XL joints when
deformation occurs?
The joints within the Ridgistorm-XL pipe
system are tested for leakage under
deformation. This stringent test ensures that
the joint remains water tight even when pipes
are deformed by 5% and the socket by 10%,
deformation far in excess of that encountered
by the pipes in application.
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Does Ridgistorm-XL have
a proven track record?
The technology used to produce
Ridgistorm-XL pipes and fittings is tried
and trusted and has been in operation for
20 years. In fact, over 40 production
lines are in operation worldwide including
Germany, Italy and Australia.
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What is the Co-efficient
of friction for the
Ridgistorm-XL pipes?
Ridgistorm-XL pipes benefit from a smooth
inner wall, providing superior hydraulic
performance when compared with rigid
materials such as clay or concrete.
See table below for details:

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Are Ridgistorm-XL pipes
abrasion resistant?
Pipes manufactured from Polyethylene or
Polypropylene offer far greater abrasion
resistance than alternative materials.
The following graph shows the abrasion curve
of various pipe materials according to the
results of the Darmstadt procedure. This graph
demonstrates the superior performance
of PE and PP pipes.

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Are Ridgistorm-XL pipes
UV resistant?
Yes, Ridgistorm-XL pipes are resistant to
UV attack and can be safely stored on-site
without any damage or ageing effects.
Ridgistorm-XL pipes may also be suitable for
some above ground applications.
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What is the standard
bedding detail for
Ridgistorm-XL pipes?
Type S bedding detail is standard for the
installation of the Ridgistorm-XL system.
However, by using the unique Easypipe
software, we are able to engineer alternative
trench bed and surround details to ensure
optimum construction methods to suit each
individual project.
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Are Ridgistorm-XL pipes
easy to handle and store
on-site?
Yes, Ridgistorm-XL pipes can be handled
by forklift without the need for any
additional equipment on-site. Ridgistorm-XL
pipes can be unloaded and transported to
the trench by excavator which will already be
present on-site.
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How should Ridgistorm-XL
pipes be stored?
When storing Ridgistorm-XL pipes and
fittings it is necessary to ensure that they
are stored on flat ground, free of stones
or other sharp objects to avoid any point
loading on the pipes. It is also important
to rotate each pipe layer by 180 degrees
so that the sockets of the upper layer are
not lying directly over the sockets of the
lower layer. See diagram below.

Do not stack Ridgistorm-XL pipes more than
four metres high, it is also important to use
wood bearing supports between the pipes to
ensure even load distribution and wooden
chocks to prevent pipes from rolling.
Please carry out an appropriate Health and
Safety risk assessment for your site.
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