1. July 2007
egeplast
Werner Strumann GmbH & Co. KG
Robert-Bosch-Straße 7
48268 Greven

2. The new factory Commissioned: January 2001 Size of grounds: 150,000 m²
Production facilities: approx. 18,000 m²
Extrusion hall: m wide, 150 m long
Extrusion lines: 14
Dimensional range: DA 7 – 1200 mm
Pipe raw materials: PE and PP
Rated capacity/year: tonnes

3. Pipe Installation back then….
and today!
Strong growth in non-conventional installation
techniques over the past 20 years
Quelle: Fiedler, Göttinger AWT 2006
Open Installation
only 10% pipe material
Civil works up to 90%
Up to 50%
cost for surface restoration
Trenchless by Relining
Quelle: Gelsenwasser
Quelle: A. Hügging in 3R international (2000)
Non-conventional pipelaying saves
money – however, requirements
towards pipe material are higher!

4. Development of PE-HD as a Material for Pipes
PE100 RC
PE 100
3rd Generation
Perfomance
PE 80
2nd Generation
PE 63
1st Generation
1970
1980
1990
2000
Year

5. Polyethylene : Molecular Structure
HDPE: filamentary macromolecule with a few branches
Polyethylene molecule
crystalline structure
branches

6. Influence on Materials Properties
PE-molecule
Property
short molecules without branches
long molecules with branches
Structure
high stiffness
high strength
crystalline
high ductility
high crack resistance
high resistance against
scratches and notches
amorphous
crystalline
amorphous

7. Increase of Resistance against Slow Crack Growth SCG by Comonomer Branches
without Comonomer
with Comonomer

8. Today: 3rd Generation PE
1. Generation: monomodale - without comonomer
2. Generation: monomodale - with comonomer
3. Generation: bimodale - with comonomer
Chain length
Content [%]
monomodale
bimodale
Increasing the crack resistance: Comonomer branch in longest macromolecules
By bimodal distribution strength and ductility were equally increased

9. The Right Pipe System for every Application
Trench Installation in Sand Bed
egelen®
Trench Installation without Sand Bed
egeplast 90 10®
Trenchless Installation/ Renewal
egeplast SLM® 2.0

10. The Right Pipe System for every Application
egeplast SLM® 2.0DCT
Detection of embedded
pipelines and
checking the integrity
Protecting drinking water in Contaminated Soil
egeplast SLA® 2.0
Environmental safety through permanent leakage monitoring
egeplast 3L/SLA®

11. Trench Installation without Sand bed
Sand bedding unnecessary thanks to modern materials
• Use of excavated soil allows quicker and more cost-effective installation.
• In Rural regions modern techniques like ploughing and milling decrease the contracting time
• Additional point loads are exert on the pipe during its live time by stones
• Pipe system need to be stable against these point loads, so that these do not result in stress-induced cracking
Scoring
Point load
Ploughing
Milling
Special Quality Control of the slow crack properties guarantees the long lifetime of these pipes !

12. PE 100 RCplus Resistance to Slow Crack Growth Testing
Full Notch Creep-Test
FNCT (ISO/DIS 16770)
Point Load Test
acc. Dr. Hessel
Notch-Test (DIN EN ISO 13479)
> 5000 h acc.
KRV Richtlinie R

13. Resistance to Crack Correlation between FNCT and Pipe Pressure Test
PE 100 RCplus
(Resistence to Crack)
> 3300 h DVGW GW 323 „Berstlining“
PE 100+
PE 100
PE 80
PE 63
Source: HESSEL Ingenieurtechnik

14. Materials in Comparison

15. PE 100 RC in accordance with KRV Standard R 14.6.36
Testing time Notched Pipe Test according to DIN EN ISO 13479:
Material Temperature Pressure Time [°C] [bar] [h]
PE 100 RC ,2 > 5000
Additionally egeplast PE 100 RCplus:
Point Load Test as a type test:
> 8760 h at 80°C, Arkopal N-100, s=4,0 N/mm²
Testing time FNCT (ISO/DIS ) each lot:
> 3300 h bei 80°C, Arkopal N-100, s=4,0 N/mm²
Acc. Dr. Hessel in 3R international 4/2001 und 6/2001

16. Trench Installation without Sand bed Reducing Costs without forfeiting safety
The ideal combination:
Modern crack-resistant Materials and intelligent pipe structure
egeplast 90 10®
A 10% coloured outer layer is isometrically integrated to allow an exact evaluation of the pipe surface pursuant to DVS, DVGW, KRV and EN standards.
Max. 10% damaging are permissible.
Pressure pipe manufactured from PE 100 RC plus (Resistance to Crack)
90 % of the standard wall thickness PE 100 RC black
10 % of the standard wall thickness PE 100 RC coloured
=100 % safety

17. Signing out the Scratch Depth
One Layer Pipe
Control of Scratch Depth is impossible!
egeplast 90 10®
Scratch Depth is Controllable!

18. Geometry of the pipe wall
Trench Installation without Sand Bed
5.740 m DA 315 x 18,7 mm; SDR 17
660 m DA 315 x 28,6 mm; SDR 11
3.060 m DA 250 x 14,8 mm; SDR 17
Geometry of the pipe wall
Installation without Sand Bed is possible

19. Welding of two layer pipe: Standard
Butt Welding
Electro Fusion Coupler
Different layers are welded together, the welding process follows typical standards like DVS 2207, part 1.

20. Preoperational Cleaning of a new Pipeline
Cutting the but weld
Cutting Process
Preoperational Cleaning of a new Pipeline

21. Trenchless Installation and Renovation Techniques
Pipe is pulled through undefined bore hole (black box)
Relining
Horizontal Drilling
Pipe Bersting

22. egeplast 90 10® SLM® 2.0
Pressure pipe manufactured from PE 100 RC (Resistance to Crack)
According DVGW standard GW 335 A2
Pressure pipe manufactured from PE 100 RC (Resistance to Crack)
according DVGW standard GW 335 A2
Isometrically integrated, 10% coloured outer layer, to allow an exact scratch evaluation
Additional extremely robust protective coating made of reinforced polypropylene

23. Unprotected PE-Pipe vs. Coated Pipe after No-Dig Technology
[mm] 1 2 3
Unprotected PE Pipe
[mm] 1
egeplast SLM® 2.0
Coextruded Multilayer Pipe
e.g. egeplast 9010®
No-Dig Technology
Scratches penetrate polyethylene pipes 3 times deeper than coating
No Damages under the coating

24. Protective Function Safety Welding Conditions after No-Dig Technologies

25. Projects: Relining
Relining of Cast Iron Pipe 200m SLM® x 25,4mm, PN 10

26. Berstlining for renovation of cast iron pipes
Projects: Berstlining
Berstlining for renovation of cast iron pipes
Bore hole
for tapping valve
Bersting of the cast iron pipe
Pulling rod
GG-Pipe (Gas)

27. Projects: Drilling
Drilling through Karst rock in Austria SLM® 2.0 OD 180mm SDR 7.4 sewage pipe with an overall length of 516m
Drilling length about 400m

28. Projects
Berstlining of a cast iron pipe
House connections

29. Thank you for your attention!