46
WILO SE 06-2015 V05 DIN A4
English INSTALLATION
NOTE:
When using the class D400 pump cover, a load distribution plate
must also be installed. To do this, the cover flange on the pump
chamber or on the pump chamber extension has to be cut off.
The load distribution plate must be provided by the customer.
When using the D400 pump cover, a maximum pump chamber ex
-
tension of 570 mm is possible. However, the required load distribu-
tion plate necessarily results in an extension of at least 300 mm. This
must be taken into account during the installation work.
The load distribution plate must be provided by the customer.
If an additional extension of more than this minimum 300 mm is re
-
quired, we recommend that this is achieved using standard concrete
adjusting rings.
In addition, to ensure that the load distribution plate can be properly
installed, the cover flange on the pump chamber must be cut off.
Fig. 7:
Removing the cover flange
For proper operation when subject to road traffic requirements,
a corresponding substructure must also be installed. This is incorpo
-
rated when filling the pit.
The load distribution plate may rest on the pump chamber, but
must rest completely on the corresponding substructure.
All further details can be found in the "Filling the pit" section.
5.2.7. Filling the pit
During filling, the pump chamber must be continuously checked for
a plumb-vertical and constant position, and for any deformation or
other indications of installation errors.
The areas directly adjacent to the pump chamber wall and the cover
flange of the pump chamber and the pump chamber extension must
be filled manually and compacted (shovel, hand rammer).
In addition, the pump chamber and any pump chamber extension
installed must be held in position and may not rise up. If necessary,
this can be ensured by filling the pump chamber with water before
filling and compacting.
Using the A15 and B125 pump cover
Fig. 8:
Filling the pit (with A15 and B125 pump cover)
1 Underlay
2 Levelling layer
3 Sand/gravel layer with no sharp-edged content,
grain size 0...32 mm, max. layer thickness 300 mm
4 Concrete adjusting rings for pump chamber extension
5 Surface level substructure
6 Pump cover class A15 or B125
The class A15 and B125 pump covers can be directly fitted in the
cover flange on the pump chamber or the pump chamber extension
using the cover frame supplied (maximum outer diameter 825 mm).
1.
Fill the pit a layer at a time (layer thickness max. 300 mm) with
coarse-grained soil all the way around to an even height (sand/gravel
with no sharp-edged content, grain size 0-32 mm) and compact
properly (Dpr. 97%). Compact by hand at the pump chamber wall
and at the cover flange on the pump chamber and pump chamber
extension, ensuring that the pump chamber is in a plumb-vertical
position and avoiding deformation.
Fig. 8
2
4
5
6
1
3
max. 200
Ø660
1
Fig. 7
