Forsheda 116 Sealing System for Sewer and Stormwater Manholes

System Description

Forsheda 116 is designed as a sliding seal to which lubricant has been applied between the sliding skin and the body of the seal. The tip of the skin is folded over and glued to the body of the seal to ensure the lubricant stays in place. During installation, the adhesive joint releases allowing lubricated skin to slide over the body of the seal. This design permits installation with very low force, as there is no friction between rubber and concrete. The special design of the joint and seal make the system easy to centre during jointing.

Forsheda 116 Design and funtion. Trelleborg

Seal Performance

The Forsheda 116 seal meets all relevant current European Standards. 

Joint performance is dependent on dimensional accuracy and surface finish of socket and spigot. 

Forsheda 116. Seal Performance. Trelleborg

Material

  • Synthetic SBR or EPDM rubber

  • Hardness 40±5 IRHD

  • Approved in accordance with EN 681-1

  • Protected against ozone

  • Oil resistant grades are available on request


Seal Dimensions

Examples of Sizes


A B Joint GAP
16 25.0 9.2±1.2
18 25.0 10.4±1.4
20 26.6 11.5±1.5
22 30.0 12.7±1.7
24 32.0 13.5±2.0
26 35.0 15.0±2.0
28 38.0 16.0±2.5
30 41.0 17.1±2.5
 Please contact Trelleborg Pipe Seals for technical advice and joint design recommendations to meet your performance requirements.
 
Forsheda 116. Trelleborg

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

Video Joint Assembly

Forsheda 116. Trelleborg

Step 1

Stretch the seal onto the spigot and position against the shoulder. Equalize the stress in the seal by lifting it at a few points. It is vital that the seal seats against the shoulder around the whole circumfe-rence of the manhole.

Forsheda 116, Trelleborg

Step 2

Centre the manhole sections and complete the joint. Depending on the joint design it may be possible to joint one side of the manhole, followed by the other.

Forsheda 116. Trelleborg

Step 3

The position of the seal in an assembled mahole is shown in picture.

Forsheda 116, Trelleborg

Step 4

If re-joining is required ensure the sliding skin is drawn back to position as shown in the picture.

Downloads

More detailed information

Datasheet Forsheda 116

 

Download (pdf)

Certificates

Technical Approvals, Patents, Quality Standards

BVQI
Kitemark
CE Mark
Kiwa
MFPA
FBS

Contact

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