The DS BL-S is an integrated manhole seal which tightens on the hole depths of the socket and length of the spigot end and due to this a higher tightness security is reached.
DSBL-S is asealing ringmade from elastomers withdense structureformanhole componentsofconcrete and reinforcedconcrete according to DINEN 1917and DINV4034-1.The sealing ring isfirmly connected to thesleevein the preparationof the shaftcomponents.
The DS TOPSEAL PLUS is an integrated manhole seal with connected load transfer hose for the ECONORM-manhole system. Seal, sand hose form a unity with the manhole section which allows a quick and secure mounting at any weather condition.