Trelleborg - Model 140 Lamell -Pre-Lubricated Seal for Concrete Pipes and Manholes

Trelleborg 140 Lamell is a pre-lubricated sliding seal that is stretched onto the spigot of the pipe or manhole. Additional lubricat is not required for joint assembly. The joint design is standard in many countries. The seal is easy and clean to handle as the lubricant is enclosed in the sliding mantle. This allows installation with very little force as there is no friction between the rubber and concrete. The joint is designed so that the pre-lubricated mantle rolls onto the top of the spigot shoulder and into the small gap between spigot and socket during installation. This prevents concrete to concrete contact and gives efficient distribution of transvers shear loads across the joint. The rectangular cross section of the laminated sealing body makes the seal very flexible and provides excellent contact width.