System Description
Trelleborg 171 Pre-Lube Load distributor is a sliding seal with a prelubricated closed sliding mantle resulting in low jointing force as there is no friction between rubber and concrete.
The joint design should comply with the requirements of Din V 4034-1. Connected to the seal is a load distributor element which prevents concrete to concrete contact between the manhole sections.
Seal Performance
Trelleborg 171 Pre-Lube Load distributor seal meets the requirements of all current relevant European standards.
Joint performance is dependent on dimensional accuracy and surface finish of socket and spigot. Test reports are available on request.
Material
- Synthetic EPDM rubber
- Hardness 40±5 IRHD
- Approved in accordance with EN 681-1
-
Protected against ozone
Watertight solutions that last
A combination of a pre-lubricated sliding seal with integrated load distributor element for concrete manhole systems
Size Chart
| A (mm) | B (mm) | Joint Gap |
|
21.0 |
72.7 | 11.5±1.5 |
| 24.4 | 78.0 | 13.5±2.0 |
| 29.1 | 87.6 | 16.0±2.5 |
service
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Please contact Trelleborg Pipe Seals for technical advice and joint design recommendations to meet your performance requirements.
Dimensions and designation
All data in millimeter.
On each seal, profile thickness, outer diameter, recommended pipe measurement and production period are given. The corresponding data are also on the packaging.
Subject to change for technical reasons
Joint Assembly
Step 1
Stretch the seal onto the spigot and position against the shoulder.
Step 2
Equalize the stress in the seal by lifting and releasing at a few points.
Step 3
The seal must sit evenly against the spigot shoulder all around the manhole. Lubrication of the socket or spigot is not required.
Step 4
Centre the joint and assemble. The position of the seal in the final mahole joint is shown. If re-joining is required ensure the sliding skin is drawn back to the position as shown in Figure 1.
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