The document presents an introduction to barrier pipes for potable water supply in contaminated land, focusing on educating relevant stakeholders about their features, benefits, and applications. It outlines types of barrier pipes, their testing requirements, jointing methods, and the advantages of using a complete barrier pipe system. Additionally, it showcases case studies demonstrating the reliability and long service life of these systems in ensuring water quality and protection against contaminants.

1. Barrier Pipe for Potable Water Supply
in Contaminated Land

2. The presentation should provideThe aim of this CPD is to
An introduction to Barrier Pipes
The presentation aims to deliver
informand educate
designers, specifiers, users and installers
on the features and benefits of
BARRIER PIPES.
a number of learning objectives
supported by case studies and concluding
with a very brief insight into GPS.
options
What is Barrier Pipe? Types Testing Usage Considerations Pipe Selection Why should Barrier Pipe be used?
to the owner, users and installer when designing and
specifying pipe systems for contaminated land.

3.  Further information
In this presentation we will cover…
 What is Barrier Pipe
 Types of Barrier Pipe
 When should Barrier Pipe be used?
 Why should Barrier Pipe be used?
 Jointing Methods
 Barrier Pipe Characteristics
 Standards & Approvals
 Applications & Case studies
 Barrier Pipe System
What is Barrier Pipe? Types Testing Usage Considerations Pipe Selection Why should Barrier Pipe be used?

4. What is Barrier Pipe?
Barrier pipe is designed to
safely transport drinking water
in land which is contaminated
or has the potential to be
contaminated in the future
What is Barrier Pipe? Types Testing Usage Considerations Pipe Selection Why should Barrier Pipe be used?

5. Types of Barrier Pipe
WIS 4-32-19 Type A WIS 4-32-19 Type B
Where the aluminium
layer is outside the
core pipe
Where the aluminium
layer is within /integrated
into the core pipe
The disadvantage is
Type B Barrier Pipe cannot
be fused.
The benefit is Type A
Barrier Pipe can be
prepared for electrofusion.
What is Barrier Pipe? Types Testing Usage Considerations Pipe Selection Why should Barrier Pipe be used?

6. WIS 4-32-19 Testing requires the
assembled pipe and fittings filled with
water and exposed to saturated petroleum
atmosphere for 60 days at 20°C…
Water is sampled and analysed to BS6920
(Taste & Odour) and also quantitative
chromatography for organic contaminants…
…there is no odour or flavour and
dissolved hydrocarbons at <100μg/l.
WIS 4-32-19
– Testing Resistance to Permeation
1
2
3
What is Barrier Pipe? Types Testing Usage Considerations Pipe Selection Why should Barrier Pipe be used?

7. Pipe Material consideration
Barrier
Pipe
These materials have been used for contaminated land.
PE Copper
Cu
Wrapped
Ductile Iron
Fe
PVC
Wrapped
Steel
What is Barrier Pipe? Types Testing Usage Considerations Pipe Selection Why should Barrier Pipe be used?

8. Barrier Pipe System
Barrier pipe and fittings cannot be mixed
and matched between systems
A system of
pipe and fittings
should be used
Joints shall not ONLY be leak proof,
but also be impermeable to ground
contaminants
Jointing methods Welded Joints

9. Electrofusion Butt Fusion
Welded Joints (Electrofusion and Butt Fusion)
Jointing methods Welded Joints

10. Characteristics
Tough and strong: Based upon the service
performance of PE100 pipe since its introduction in
the UK, a service life in excess of 100 years may
confidently be expected. Full end loading: thrust backs and
anchorages NOT necessary
Lightweight: easier to manage on
through the project lifecycle
Flexible: inherent flexibility decreases
failure rates and increases versatility
Complete barrier protection: PE-AL pipes
are suitable for using under all conditions.
Resistance to corrosion: PE pipes don’t RUST,
ROT, PIT, CORRODE or lose wall thickness
Prevention from future contamination:
Negates the risk of future contamination

11. Case Studies & Applications
Customers can trust our Barrier Pipe
Systems to help them achieve the required
water supply service targets for water quality,
continuity of supply and leakage rate.

12.  Superior Barrier Performance
 Ease of installation
 Fully Kitemarked system
 Reduced overall costs
 Lifetime of service
Ensures water
quality and
structural
integrity of
pipes
Make savings by
not undertaking site
investigation and
replacing or
repairing pipework
Protection
against all
contaminants
With an
expected lifetime
of 100 years
Lightweight and
flexible
– requires only a
narrow trench for
rapid installation
Summary

13. Who we are – GPS locally
35,000
Tonne Capacity
16mm - 1200mm
Diameter
Turnover of
£65 million
Operating for over
50 years
Market Share
(approx of PE Pipe Systems)
Extrusion lines
17
Part of the Aliaxis Group
Overall
43%
Water
56%
Gas
41%