Product
PRESSURE
LINER
Overview
Pro Line’s pressure-rated UV-CIPP liner is engineered for the trenchless rehabilitation of pressurised pipelines, including industrial and rising main applications. Designed for structural performance under internal pressure, it offers long-term durability, minimal disruption, and certified compliance with global standards. With fast curing times and installation efficiency, the Pro Line Pressure Liner is the ideal solution for critical infrastructure rehabilitation.
Benefits
Pressure Rated for Demanding Applications
Pro Line’s pressure-rated UV-CIPP liner is engineered to withstand high internal operating pressures, making it ideal for rising mains, force mains, industrial process pipelines, and other pressurised systems. Its reinforced GRP composite structure delivers dependable performance under both continuous pressure and short-term surge conditions. Rigorously tested to relevant industry standards, it offers long-term structural integrity in environments where durability and reliability are critical.
Pro Line: Expert support at every stage
Constructed with premium-grade resins and corrosion-resistant glass fibre, the Pro Line liner offers robust protection against chemically aggressive flows. It performs exceptionally well in environments exposed to hydrogen sulphide, industrial wastewater, and other corrosive media. This long-lasting resistance helps preserve pipeline integrity and significantly extends asset life in both municipal and industrial networks.
Consistently Reliable Performance
The Pro Line pressure liner is engineered for proven, long-term performance under load, and validated through comprehensive mechanical testing and global certifications. Its structural strength, chemical resistance, and durability make it a reliable choice for asset owners seeking to upgrade or extend infrastructure service life. Whether used in municipal or industrial settings, it provides dependable protection and peace of mind over decades of service.
Installation Friendly & Fast Curing
Pro Line’s UV-CIPP liner is widely recognised across the trenchless rehabilitation industry for its outstanding ease of installation and rapid curing performance. Its lightweight, flexible construction and smooth handling characteristics allow crews to position and install the liner quickly—even in confined or challenging environments. This installation-friendly design reduces labour demands, shortens setup time, and increases overall site efficiency.
Complementing its physical advantages, Pro Line’s advanced UV-curing system is engineered for speed and consistency. Using high-grade materials and precision manufacturing, each liner is optimised for maximum light transmission, enabling uniform and accelerated curing along the entire pipe length. The result is a significantly faster return to service, reduced project timelines, and minimal disruption to surrounding infrastructure or communities—giving contractors a valuable edge in delivering high-quality results on tight deadlines.
PRESSURE LINER
Details
Inner Foil
Multi Layer barrier that remains inside the liner after the curing process.
Fibreglass Composite Layer
Fibreglass impregnated with Polyester or Vinyl Ester resin
Outer Fleece Layer
Layer that encapsulates resin and protects during transport and installation process. Layer also prevents resin leakage.
Outer Foil with UV protective film
Multi-layer composite film provides protection against exposure to external factors during installation such as to light and early curing.
Outer film with UV protective film
Multi-layer composite film, with polystyrene layer and bonded on light protection film, protects against external effects during transport and installation. Also prevents resin leakage, exposure to light and premature, unwanted curing.
Diameter (DN)
DN150 - DN1800
Wall Thickness (mm)
3.0 - 20mm
Resin Variants
DN150 - DN1800
Profiles
Circular
Operating Pressure [bar]
Up to 40 Bar
Glass content based on DIN EN ISO 1172
57% + 5% (mass related)
Weight per unit area of glass per mm wall thickness
950g/m2±15%
Remaining styrene value
4 mass-%
24h-tendency to creep according to DIN EN ISO 899-2
s5%
E-module short-term
19,324MPa
E-module long-term
15,592MPa
Fleural strength
>260MPa
Tensile Strength
>160MPa
Reduction factor A1
0.8
10,000-hour loading test
Passed/50-Years
Shelf Life
12 months / Stored between 5-25 Degrees Celcius
Certification Standards
GB/T 1449-2005 1040.4-2006 DWA-A 143-3 Clause 72.9
Our 12 step process
Clean host pipe
Thoroughy clean the pipe to be rehabilitated
01
Clean
CCTV
CCTV pipe inspection
02
CCTV
Flange and coupling connection
Install flange and coupling connection (to be lined through)
03
Connections
Pull liner and glide foil
1. Pull in glide foil/slip film (not necessary for liners with Integrated Glide Foil).
2. Pull in liner using a winch
04
Pull through
Close End Cans
Close off the pipe ends with End Cans/Packers
05
Close ends
UV Light
Pull in the UV light source
06
UV light
Inflate Liner
Inflate liner against the pipe wall with air compressor
07
Inflate
Cure
Cure the liner with UV light source
08
Cure
Remove End Cans
Open the end cans
09
End cans
Remove film
Remove the inner foil. Not required for liner with permanent inner foil
10
Film
Cut liner and seal
Cut the liner and grout/seal
11
Cut
End seals
Install liner end seals
12
End seals
Case studies
All case studies
Your questions answered
Can’t find what you’re looking for? Get in touch with us — we’ll do our best to help.
What is a UV-CIPP pressure liner and how does it work?
A UV-CIPP pressure liner is a trenchless pipe rehabilitation system designed for pressurised pipelines. A resin-impregnated, glass-reinforced liner is inserted into the host pipe and cured using UV light, creating a seamless, structural pipe-within-a-pipe. This method restores full pressure capacity and structural strength without excavation.
What are the key advantages of UV-CIPP for pressure pipelines?
UV-CIPP provides a fast, non-invasive solution for renewing pressurised pipelines. Benefits include rapid curing, high chemical and abrasion resistance, no need for excavation, and a 100-year design life.
What is the maximum pressure rating for a UV-CIPP Liner?
Pro Line liners can be custom-designed to meet specific internal pressure requirements, based on the pipeline’s conditions and application. Pro Lines liner is independently tested to 40 Bar and our engineering team calculates wall thickness and performance in accordance with ISO 11297 and other global standards.
Are UV-CIPP pressure liners suitable for industrial applications?
Absolutely. The liners offer high resistance to chemically aggressive media and high-pressure jetting, making them ideal for industrial water, effluent pipelines, and other harsh environments.
Is the UV-CIPP process environmentally friendly for pressure systems?
Yes. The trenchless nature of UV-CIPP eliminates the need for excavation, reducing emissions, soil disruption, and community impact. Pro Line also uses environmentally responsible materials and manufacturing processes.
What is the maximum pressure rating for a UV-What standards do UV-CIPP pressure liners adhere to?CIPP Liner?
Pro Line’s pressure liners are manufactured and tested according to ISO 11297 and other relevant international standards. This ensures compliance, quality, and suitability for both potable and non-potable pressure pipelines.
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