Forsheda 160 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.
Seal design & function
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.
Retaining sections are cast into the concrete during pipe manufacture and secure the seal in the correct position.
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
Sealing part 40±5 IRHD
Forming part 63±5 IRHD
Approved in accordance with EN 681-1
Protected against ozone
100 % Performance
Integrated seal for concrete manhole systems using DIN V 4034-1 spigot design
100 % leak-free
Examples of Sizes
Effective Profile thickness, mm
You need support?
Please contact Trelleborg Pipe Seals for technical advice and joint design recommendations to meet your performance requirements.
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
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.
Centre the socket over the spigot and lower the upper manhole element to complete the joint. Light weight elements may require an additional vertical force to fully close the joint.