Installation Conditions; Installation And Assembly; Filling Material; Excavation Pit - Kessel EasyClean ground Standard NS 25 Anleitung Für Einbau, Bedienung Und Wartung

During the intermediate storage of the grease separator
and until completion of the installation work, suitable sa-
feguarding measures must be taken at the building site to
prevent accidents and damage to the grease separator.
The chapter "Safety instructions" must be heeded!

5.1 Installation conditions

Installation must only be carried out by companies who are in
possession of the technical experience, suitable implements
and equipment as well as adequately trained personnel.
The in-situ soil type should be tested, in particular for any ap-
plicable national building regulations. These regulations may
set particular requirements for the angle of the excavation side
slopes/walls, the load-bearing capacity and possible special
measures to ensure load-bearing capacity.
The maximum groundwater level that can occur must be esta-
blished. A sufficient drainage of seepage water is compulsory
for soils that are impermeable to water. The types of loads
occurring such as maximum travelling loads and installation
depth must have been clarified.
The grease separator for underground installation should be
installed outside the building as close to the drains as possible.
If necessary, the inlet connection pipes to the grease separa-
tor should be routed heat-insulated or heated. The necessary
frost-free installation depth is achieved using telescopic upper
sections and adaptation to the inlet and outlet pipe (sewer). The
covers for the load classes A / B / D are screwed odour-tight
and correspond to DIN EN 124.
Wastewater pipes and fittings made of the following materials
may be connected to the inlet and outlet of the separator system:
- Polyvinyl chloride (PVC-U ) acc. to DIN EN 1401-1 in connec-
tion with DIN 19534-3,
- Polyethylene (PE) acc. to DIN EN 12666-1 in connection with
DIN 19537-3 or
- Polypropylene (PP) acc. to DIN EN 1852-1
6
4
≥50cm
5
DIN 4124
or equiv.
≥70cm
2019/02

Installation and assembly

≥50cm
3
2
1
≥70cm
23/96
The specifications in DIN EN 124 and DIN EN 476 must always
be fulfilled.

5.2 Filling material

Subbase: silty gravel (graining 0-16 mm)
sand (graining ≤ 2 mm)
Tank base:
Tank encasing: silty gravel (graining 0-16 mm)
Area outside the
tank encasing: material of suitable consistence
Top layer: topsoil or similar

5.3 Excavation pit

Prerequisites for the ground to be used
The foundation soil must guarantee sufficient load-bearing ca-
pacity according to national regulations. Generally, the sepa-
rator system may only be installed in soils of
- gravel and sand with no more than 12% fines
- gravel and sand with more than 12% fines compacted with at
least Dpr = 97%. In this case provision must be made for the
sufficient drainage of seeping water.
Preparation of the excavation pit
The foundation soil must be horizontal and level so that full-sur-
face set-up is possible. Compacted gravel 0-16 mm graining
(at least 30 cm deep, Dpr=97%) must be planned as the sub-
base, and must be compacted layer by layer with a maximum
layer thickness of 30cm/layer. 3-10 cm sand are required for
the bed. The clearance between excavation pit wall and tank
must be at least 50 cm. The depth of the excavation pit must
be dimensioned in such a way that the depth limits of soil cover
are not exceeded.
MIN ≤ DSC ≤ MAX (see "Dimensioned drawing" chapter).
1 Subbase:
silty gravel (0-16 mm) compacted with Dpr
≥ 97%
≥20cm
2 Bedding: Sand (≤2mm)
≥30cm
3 Separator: According to static calculation
≥30cm
4 Backfilling:
≥30cm
Gravel 0-16 mm graining compacted with
Dpr ≥ 97%
≥30cm
5 Foundation soil:
≥30cm
- gravel and sand with no more than 12%
fines, other soil types
≥30cm
- gravel and sand with more than 12%
≥30cm
fines must have at least Dpr = 97%. In this
case provision must also be made for the
≥30cm
sufficient drainage of seeping water.
≥30cm
6 Top layer:
For Traffic load group E 4 (SLW 60), load
≥30cm
distribution plate according to static cal-
3-10cm
culations.
≥30cm
For Traffic load group E 2 (passenger
cars), load distribution layer
7 Top of the tank
010-223