Trelleborg Forsheda - Model 160 -Sealing Systems for Sewer and Stormwater Manholes

Trelleborg 160 Integrated Manhole Seal is a one-piece integrated seal that is cast into the socket during manhole manufacture. It is specifically designed for use with the spigot design according to DIN V 4034-1.

1. Forming part, made of hard rubber, (63 IRHD) ensures a secure and accurate joint profile during casting.
2. Sealing part, made of soft rubber, (40 IRHD) is a combined lip and compression seal. The soft rubber has excellent flexibility to take up irregularities in the spigot surface.
3. Retaining sections are cast into the concrete during pipe manufacture and secure the seal in the correct position.
4. 4. Slurry lips seal against the base ring (pallet) pre venting concrete ingress during manhole manufacture. The lips are made of soft 40 IRHD rubber which gives an excellent seal between seal and base ring.

Forsheda  160 meets or exceeds the  requirements of all current relevant European standards including the FBS demands.

• Synthetic rubber EPDM
• Dual hardness
• Sealing part 40±5 IRHD
• Forming part 63±5 IRHD
• Approved in accordance with EN 681-1
• Protected against ozone

Step 1
Apply lubricant to the spigot of the manhole. This should be spread evenly over the entire surface paying special attention to the top radius. Lubrication may also be applied to the seal to further assist jointing.

Step 2