Trelleborg 165 is a one-piece integrated seal for concrete pipe systems. It ensures a watertight seal between pipes, manhole sections and pipe connections to manholes. The seal is cast into the socket during pipe manufacture. This secures the seal in the correct position, minimizing the risk of seal displacement. Trelleborg 165 is co-extruded, using specially formulated EPDM rubber compounds of two harnesses to form the perfect seal:
The forming part, made of hard rubber (70 IRHD), ensures a secure and accurate joint profile during casting
The sealing part, made of soft rubber (50 IRHD), is a combined lip and compression seal
Holding sections are cast into the concrete during pipe manufacture, securing the seal in the correct position
Slurry lips against the pallet prevent ingress during concrete compaction
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