State of Technology Report for Force Main Rehabilitation, Final ...

Technology/Method Hose Liner/Pulled in Place
I. Technology Background
Status Emerging
Date of Introduction 2001 in Germany
Utilization Rates Between 20 and 30 km per year through 2008
Vendor Name(s) Primus Line®
Raedlinger Primus Line GmbH
Kammerdorfer Strasse, 16
Cham D93413
Germany
Phone: +49 9971 4003-100
Email: primusline@raedlinger.com
Homepage: www.primusline.com
Practitioner(s) Double-inverted siphon under Lake Bigge. Two 12” drinking water lines, 650
feet long each, 232 psi working pressure.
Client: Kreiswasserwerke Olpe
Engineer: Bieske & Partner, Lohmar
Description of Main
Features
Main Benefits
Claimed
Main Limitations
Cited
Applicability
(Underline those that
apply)
Rising pressure pipe, 20 inches diameter, 363 psi working pressure, 1,350 feet
long with 4 - 45 o bends. Pipeline located on a 76% slope.
Client: Stahlwerke Thüringen AG
Seamless woven aramid (Kevlar®) fiber in single or double-layer design
embedded in a high performance plastic. The folded pipe is pulled into the
existing pipe from a reel. No curing required. Pressure inflates the liner which is
then self supporting. Inner liner coating is either PE for water and sewer
applications, or TPU for oil and gas.
• Light weight, 1.6 to 9.1 kg/m depending on diameter and number of layers
of fabric.
• High strength – burst pressure of 2,580 psi (178 bar) for 6 inches diameter.
• Delivered rolled up to 5 miles on one drum.
• Easy to install – up to 6,000 feet in a single line.
• Could be used for a temporary pressure by-pass line.
• Can navigate through a 30 o bend.
• Requires a special coupling device (Primus Line connectors) for jointing up
to steel, PE or other pipe materials for pressure rates higher than 16 bars.
Alternative standard PE or GRP couplings are being tested.
• Cannot accept connections so need special connectors (for high pressure) to
adapt to fittings.
• Would be imported from Germany as no US production.
Force Main Gravity Sewer Laterals Manholes Appurtenances
Water Main Service Lines Other: Gas and Oil
II. Technology Parameters
Service Application Pressure - water, wastewater, oil and gas
Service Connections No service connections directly to the liner. A special connector (for high
pressure applications) is needed at end to join liner, via a flange or weld, to steel
Structural Rating
Claimed
Materials of
Composition
Diameter Range,
inches
Thickness Range,
inches
pipe or fitting.
Class IV, but relies upon host pipe to carry external loads.
The Primus Line is made of a low weight fibre woven hose. The hose is
constructed of seamless interweaving of Kevlar fibre with an inner and outer
coating. The inner coating is a thermoplastic which is smooth and resistant to
many media. For water and sewer applications the inner coating is PE, for oil and
gas applications the coating is TPU. The outer coating is wear-resistant PE.
Kevlar fibre has a tensile strength of 2,920 N/mm 2 , or 8 times that of steel.
6-20 inches (150-500 mm)
0.24 inches (6.5 mm)
A-64