SAERTEX-LINER® ENVIRONMENT represents a valuable styrene-free option in our GRP liner product portfolio. This liner is specifically engineered for the trenchless rehabilitation of wastewater and stormwater pipes in environmentally sensitive settings. It is offered in two practical design options:
- Type S+: Delivers strong mechanical properties, making it suitable for various gravity flow applications.
- Type S+ XR: Tailored for pressure lines, ensuring reliable performance.
Benefits
Benefits
SAERTEX-LINER® ENVIRONMENT is impregnated with styrene-free vinyl ester resin, making it ideal for UV-CIPP rehabilitation of pipes in environmentally sensitive applications
Industry leading mechanical properties
This styrene-free liner has exceptional mechanical properties, making it suitable for various applications. It features a long-term circumferential E modulus of 9,450 N/mm² (1,370,000 psi) and an impressive preliminary retention factor of 1.37 (73%) after 2,000 hours of testing.
DiBT approved
SAERTEX-LINER® ENVIRONMENT is the first fiberglass-reinforced pipe liner impregnated with styrene-free VE resin on the market approved by the German Institute for Building Technology (DiBT).
Installation-friendly construction
The construction of SAERTEX-LINER® ENVIRONMENT allows higher pulling forces and prevents the liner from overstretching. Its low weight makes for easier handling, and the lower wall thicknesses shorten curing times. The “FastPlus” option saves even more installation time because the inner foil stays in place after curing.
Variants
| Product range | SAERTEX-LINER® ENVIRONMENT |
||
|---|---|---|---|
| Utilization | municipal wastewater and rainwater | ||
| Resin type | SFVE | ||
| Temperature and media resistance | + | ||
| Styrene free? | yes | ||
| Design | Typ S+ | Typ S+ XR | |
| Host pipe profile | Various | Circular | Circular |
| Application | Gravity | Pressure | Pressure |
| Pressure Application | • | ||
| Operating Pressure [bar] | up to 1 | up to 33 | |
| Fully statically loadable* | • | • | • |
| DN [mm] | 150–1,500 | 250–1,200 | 250–1,200 |
| Composite wall thickness [mm] | 3–12 | 4–12 | 4.3–12.3 |
| Foils | |||
| Outer foils: | |||
| - Integrated gliding and UV light protection foil | • | • | • |
| - Permanent foil with barrier function Inner | • | • | • |
| Inner foil with barrier function: | |||
| - Standard (temporary) | • | ||
| - FastPlus (semi-permanent)** | Selectable | ||
| - Pressure (permanent) | • | • | |
| Mechanical Characteristics | |||
| Short-term circumferential E modulus [N/mm²] | ≥ 12,950 | ≥ 20,500 | |
| Long-term circumferential E modulus [N/mm²] | 9,450 | 16,000 | |
| Short-term bending E modulus [N/mm²] | ≥ 15,000 | ≥ 16,800 | |
| Short-term bending stress [N/mm²] | ≥ 230 | ≥ 270 | |
| Long-term bending stress [N/mm²] | 165 | 210 | |
| Reduction factor according to DIN EN 761: | |||
| - 50 years [after 10,000 hours] | 1.37 | 1.28 | |
*Structural classification for pressure applications | Class A DIN EN ISO 11295 // Class IV AWWA M28
**FastPlus available for DN 200 to DN 1500 max WD 12 mm
Proven results
SAERTEX-LINER ENVIRONMENT consistently demonstrates outstanding mechanical properties after 2000 hours of testing, establishing it as the premier choice for rehabilitation projects as of April 2021. Contact us for the latest updates on the 10,000-hour test; we are dedicated to delivering top-tier solutions.
"FastPlus" additional time saving option
This rugged inner foil remains inside the liner after curing and saves your team about 1 hour of installation time for every 100 meters of liner. FastPlus also makes it easier to introduce the UV source, even under difficult installation conditions.
How To
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HOW TO INSTALL A GRP LINER FOR UV CIPP - SAERTEX-LINER INSTALLATION (EN)