Innovativ heisst:
Exactly the liner you need.
We offer liners for pressure pipes and gravity pipes, for changes in dimensions and all types of profiles. Maximum flexibility—compatible with all possible curing methods: hot water, steam, or UV light.
A particular benefit for you: Our liners can be manufactured in such a way that pipes of different diameters can be rehabilitated in a single operation.
Print Liner
INVERSION PRINT LINER (FELT-GLASS)
Polyester needle-punched felt, reinforced with one or more layers of glass fiber for additional structural strength and for use in pressure pipes (e.g., drinking water).
▶ Nominal diameter range: DN 150 to DN 1400
| End wall thickness* | Curing | Coating | Installation Type | |
|---|---|---|---|---|
| Minimum | 2,5 mm | Steam / Hot Water | polypropylene | Inversion |
| — | + 1.5–3 mm for each additional layer of felt applied | |||
| Maximum | 20 mm | Steam / Hot Water | polypropylene | Inversion |
*after curing at approximately 1 bar
Our resin for inversion printing liners
▶ Nominal diameter range: DN 150 to DN 1400
| Resin Name | Resin Type | Curing | Shelf Life | Notes | Status |
|---|---|---|---|---|---|
| Röders®Resin Pressure* | 2-component epoxy resin system | Hot Water / Steam | 12 months | Pot life: Up to 24 hours at 23°C Mixing ratio: 100:40 Can be pre-impregnated |
Suitable for drinking water |
*Official designation: Pioneer®Liner Rx – EP WT E-1
Print Liner
RETRACTABLE PRINT LINER (FELT-GLASS)
Polyester needle-punched felt, reinforced with one or more layers of glass fiber for additional structural strength and for use in pressure pipes (e.g., drinking water). A calibration hose is required for installation.
▶ Nominal diameter range: DN 150 to DN 1400
| End wall thickness* | Curing | Beschichtung** | Installation Type | |
|---|---|---|---|---|
| Minimum | 2,5 mm | Hot Water / Steam | polypropylene | Pull-In |
| … | +1.5–3 mm for each additional layer of felt applied | |||
| Maximum | 20,0 mm | Hot Water / Steam | polypropylene | Pull-In |
* After curing at approximately 1 bar, final wall thickness excluding the calibration hose **Coating of the calibration hose
Our resin for shrink-fit print liners
▶ Nominal diameter range: DN 150 to DN 1400
| Resin Name | Resin Type | Curing | Shelf Life | Notes | Status |
|---|---|---|---|---|---|
| Röders®Resin Pressure* | 2-component epoxy resin system | Hot Water / Steam | 12 months | Pot life: Up to 24 hours at 23°C Mixing ratio: 100:40 Can be pre-impregnated |
Suitable for drinking water |
*Official designation: Pioneer®Liner Rx – EP WT E-1
Gravity-flow liner
Inversion Free-Flow Liner (Felt)
Single- or multi-layer felt liners with an inner coating.
▶ Nominal diameter range: DN 150 to DN 1400
| End wall thickness* | Curing | Coating | Installation Type | |
|---|---|---|---|---|
| Minimum | 3,0 mm | Hot Water / Steam | Polypropylene / Polyurethane | Inversion |
| … | + 1.5 mm for each additional layer of felt applied | |||
| Maximum | 30 mm | Hot Water / Steam | Polypropylene / Polyurethane | Inversion |
*after curing at 0.5 bar
RÖDERS® CALIBRATION HOSES
| End wall thickness | Curing | Coating | Installation Type | |
|---|---|---|---|---|
| Minimum | 1,3 mm | Hot Water / Steam | polypropylene | Inversion |
| Maximum | 2,5 mm | Hot Water / Steam | polypropylene | Inversion |
Gravity-flow liner
Retractable Free-Flow Liner (Felt)
Single- or multi-layer felt liners. A calibration hose is required for installation.
▶ Nominal diameter range: DN 150 to DN 1400
| End wall thickness* | Curing | Beschichtung** | Installation Type | |
|---|---|---|---|---|
| Minimum | 3,0 mm | Hot Water / Steam | polypropylene | Pull-In |
| … | + 1.5 mm for each additional layer of felt applied | |||
| Maximum | 19,5 mm | Hot Water / Steam | polypropylene | Pull-In |
*After curing at 0.5 bar, final wall thickness excluding the calibration hose ** Coating of the calibration hose
RÖDERS®LINER – PRELINER
▶ Used as an outer membrane to protect the liner from groundwater and seepage water
High quality
Sustainable
Safe
Flexible
Worldwide delivery
Efficient
Made in Germany
Versions
by RÖDERS®LINER
Do you have a project? We have the right liners. With diameters ranging from 40 to 1,400 mm, wall thicknesses between 2 and 41 mm, and single- or multi-layer construction. Our liners are available with or without a coating.
Exactly what you need.
We offer liners for pressurized and gravity pipelines, for changes in dimensions, and for profiles of all kinds! Maximum flexibility. The same goes for the available curing methods: hot water, steam, or UV light.
A particular benefit for you: Our liners can be manufactured in such a way that pipes of different diameters can be rehabilitated in a single pass.
Highest quality
Earthquake-resistant
Safety is crucial to you. You can count on our liners. They can even withstand an earthquake like the one in Japan in 2011. There, numerous supports had been retrofitted with our pipe liners beforehand and were inspected for damage after the quake. The result: The tested RÖDERS®LINER showed no signs of damage whatsoever. They are earthquake-resistant!
