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3
Handling
3.1
Assembly information
3.1.1
Installation dimensions
Grundfix Plus Control backflow trap type 3
Fig. 7: Installation dimensions
DN
D
H1
110
110
260
125
125
260
160
160
295
The backflow sensor reacts at accumulation heights of
100 mm, measured from the upper edge of the base pipe‐
line.
Therefore, when planning, the installation heights of the
existing floor drains, out of which water could flow in the
case of backflow, must be taken into account.
If a backflow trap is retro-fitted in a base pipeline, the
height difference of 30 mm between connection pipe and
sleeve must be taken into account.
H2
H3
L1
100
65
405
105
75
405
125
95
470
Handling
L2
L3
215
545
215
550
245
640
15
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