Trelleborg 171 is a sliding seal with a pre-lubricated closed sliding mantle resulting in low jointing force as there is no friction between rubber and concrete.
Connected to the seal is a load distributor element which prevents concrete to concrete contact between the manhole sections.
Joint performance is dependent on dimensional accuracy and surface finish of socket and spigot.
Trelleborg 171 Pre-Lube Load distributor design complies with the requirements of DIN V 4034-1. The joint design complies with the requirements of DIN V 4034-1 and meets the requirements of all current relevant European standards.
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