Same Nominal Diameter
These rings are used in pipe couplings that lack a gasket.
- for the connection of sewage pipes from different sewage pipe systems to concrete or vitrified clay pipes
- consists of an elastomer with a closed-cell structure
Rolling Rings RR
- For use in pipe sockets with missing seals
- Permanent sealing when connecting different sewage pipe systems
- Made of EPDM in accordance with DIN EN 681-1
The Fernco transition ring is used for the connection of sewage pipes from different sewage pipe systems to clay pipe or concrete sockets without seal.
Material: The rolling ring consists of a cellular rubber which is a closed cell foamy elastomer.
Transitional Diameter
The Fernco transition roll ring is a compression seal designed for use in pipe sockets that lack a seal.
Material: consists of an elastomer with a closed-cell structure
- A pre-stretch of 15% to 20% should be selected for the sealing rings
- The calculation always depends on the annular space and the resulting compression
- Follow the pipe manufacturers’ installation guidelines and the standards DIN EN 1610 and DWA-A 139
