The DS BS 2000 is an integrated manhole seal which fits on all usually available spigot ends with shoulder according to DIN V 4031-1.

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.

DS BL-S is a sealing ring made from elastomers with dense structure for manhole components of concrete and reinforced concrete according to DIN EN 1917 and DIN V 4034-1. The sealing ring is firmly connected to the sleeve in the preparation of the shaft components.

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.

The DS SDVseal is a combination of a pre-lubricated seal ring and a load-transfer-ring with synchronous interior joint closure in just one element.

The DS SDV-Balloon is a pre-lubricated seal ring. The newly designed seal body allows a wider contact area between seal and concrete.

The DS SG is an incoherent seal ring for manholes.

DS Butylrubber seal is a plastic seal for example for manhole and special units with non rotationally symmetrical cross sections.

The DS DFP liner profile is an integrated element for the use in sockets of manhole rings for the attainment of sockets without air bubble holes.

DS TOPSEAL Basic is a flat closed hose - filled with fine quartz sand - for the load-transfer in the manhole building.

DS TOPSEAL is a flat closed hose - filled with fine quartz sand - for the load-transfer in the manhole building.