The wall penetration seals pipes at penetration points, e.g. through concrete or masonry. It consists of a 30 mm thick rubber disc with two stainless steel plates and tightening screws.
It has 4 or 7 holes for suction or pressure lines and electrical cable.

The wall penetration is inserted, for example, into a core drill hole of 100 mm or 110 mm; the pipes are drawn through and then the steel plates are pressed together with the included screws, causing the rubber in between to expand in all directions. In doing so, the penetration points and the outer annular space are permanently watertightly sealed.

When passing through brickwork, it is advisable to embed a KG pipe into the wall opening. In this case, the wall penetration is inserted into the KG pipe.

The designations WD 100 and WD 110 each refer to the outer diameter of the wall penetration.
When using a standard KG pipe with DN 110, the wall penetration WD 100 fits exactly into the pipe, while wall penetration WD 110 fits into the coupling.

The wall penetrations are not suitable for permanent underwater use.

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