60
Length DL = 10
.
∆ S
.
Ø
Geberit Drainage Systems
Buried drain systems
7.5 Pipes penetrating
through building walls
With regard to the ground line between the building wall
and the street sewer, where extreme settling can occur,
an installation mat must be wrapped around the ground
line to act as a deflection leg.
In such cases, Geberit HDPE is an ideal material, since
it assures tightness and at the same time provides
maximum flexibility.
Deflection leg
The length of the deflection leg is dependant upon the
expected settling and on the pipe diameter.
Note: The insulation must be thicker than
the expected settling.
1 Seepage pipe
2 Settling
3 Insulation mat
4 HDPE pipe Ø
5 Foundation slab
6 Seepage tank lining
DL = Deflection leg
S = Insulation thickness
∆S = Expected settling
Expected Geberit Deflection
settling HDPE pipe leg
∆ S Ø DL
20 - 40mm 125 - 160/200 - 315 1.0m/1.0m
40 - 60mm 125 - 160/200 - 315 1.0m/1.5m
60 - 80mm 125 - 160/200 - 315 1.5m/1.7m
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