Manhole Parts and Components - Trelleborg Pipe Seals FlexRib

The FlexRib manhole chimney seal from Trelleborg Pipe Seals includes Waveband technology that reliably compresses the rubber FlexRib seal against the frame casting and the manhole cone to achieve water tightness without requiring bonding. The FlexRibs readily absorb joint movement without compromising the seal. The seal keeps joints in the grade adjustment area (chimney to frame) from deteriorating with impact loads and thermal expansion or contraction, which can result in infiltration. The seal accommodates for inevitable movement in joints and withstands seasonal temperature extremes, which can take their toll on the bonding of coating systems because of differential expansion or contraction from the manhole materials. 800-626-2180;


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