For styrene-free pipe lining
The SAERTEX-LINER ENVIRONMENT is the styrene-free product in our GRP pipe liner portfolio. With no styrene emissions, this liner is ideal for the trenchless rehabilitation of wastewater and stormwater pipes in high-traffic public spaces. It is available in two design variants.
- Type S+: best mechanical characteristics and interesting number of
- variants Type S+ XR: suitable for pressure lines up to 33 bar
Conpiles with high emission requirements
Impregnation with styrene-free vinyl ester resin means the SAERTEX-LINER ENVIRONMENT is free from the typical styrene odor. It is therefore ideal for UV-CIPP rehabilitation work performed in public foot traffic areas.
Best long-term characteristics
Its mechanical properties make SAERTEX-LINER ENVIRONMENT suitable for many typical applications: It has a long-term circumferential E modulus of 9,450 N/mm2 and an excellent preliminary reduction factor of 1.37 after 2000 hours of testing.
With DiBT approval
The SAERTEX-LINER ENVIRONMENT is the first fiberglass reinforced pipe liner impregnated with styrene-free VE resin on the market and approved by the German Institute for Building Technology (DIBt).
The construction of the SAERTEX-LINER ENVIRONMENT allows high pull-in forces and prevents the liner from overstretch. Its low weight makes for easy handling, the low wall thicknesses shorten curing times, and, in the "FastPlus" variant, the pipe liner saves even more installation time.
|Medium||municipal wastewater and rainwater|
|Temperature and media resistance||+|
|Design||Typ S+||Typ S+ XR|
|Old pipe profile||Various||Circular||Circular|
|Operating Pressure [bar]||up to 1||up to 33|
|Fully statically loadable*||•||•||•|
|Composite wall thickness [mm]||3–12||4–12||4.3–12.3|
|- Integrated gliding and UV light protection foil||•||•||•|
|- Permanent foil with barrier function Inner||•||•||•|
|Outer foil with barrier function:|
|- Standard (temporary)||•|
|- FastPlus (semi-permanent)**||Selectable|
|- Pressure (permanent)||•||•|
|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:|
|- 10 years [after 2,000 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
Our SAERTEX-LINER ENVIRONMENT still showed excellent characteristics after 2000h of testing to match a wide range of typical rehabilitation projects (status as at 4/2021). Feel free to contact us for the present status of the 10,000h test.
Saves time and provides extra protection
This rugged inner foil remains inside the liner after curing and saves your team about 1h of installation time for every 100m liner. FastPlus also makes it easier to introduce the UV source, even in difficult installation conditions.
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