Trelleborg 118 is a pre-lubricated sliding seal that is stretched onto the spigot of the manhole. Additional lubricant is not required for joint assembly.
The seal is designed with a sliding mantle which is internally lubricated. The mantle is fully closed to ensure the lubricant stays in place. This design permits installation with low force, as there is no friction between rubber and concrete, and makes the system easy to center during jointing.
During installation the thin mantle slides over the body of the seal. Joint performance is dependent on dimensional accuracy and surface finish of socket and spigot. The Trelleborg 118 Pre-Lube Manhole seal meets all relevant current European standards.
Key features & benefits
- Easy to center during jointing
- Easy installation, no friction between rubber & concrete
- Enables safe working environments
Material
- Synthetic SBR or EPDM rubber - Hardness 40±5 IRHD
- Approved in accordance with EN 681-1
- Protected against ozone, oil resistant are available on request
Sizing Chart
| A (mm) | B (mm) | Joint GAP (mm) |
|---|---|---|
| 18.0 | 25.0 | 10.4±1.4 |
| 20.0 | 26.5 | 11.5±1.5 |
| 21.5 | 30.0 | 12.5±1.6 |
| 22.0 | 30.0 |
12.7±1.7 |
| 24.0 | 33.0 |
13.5±2.0 |
| 28.0 | 38.0 |
16.0±2.5 |
Dimensions & Designation
On each seal, profile, diameter and appropriate pipe dimensions together with date of manufacture is given. The corresponding information is also included on the packaging.
Subject to change for technical reasons.
Joint Assembly
Stretch the seal onto the spigot and position against the shoulder.
Equalize the stress in the seal by lifting and releasing at a few points. The seal must sit evenly against the spigot shoulder all around the manhole.
Lubrication of the socket or spigot is not required. Centre the joint and assemble. The position of the seal in the final manhole joint is shown.
