Drainage channel installation guidelines FILCOTEN® green
with an outlet into the sewage or infiltration system
The installation guidelines and installation examples below are
intended for standard applications. The load class and installation
site must be adjusted to the local conditions of the planned site in
accordance with EN 1433. The technical rules and guidelines that
are generally known among experts must be taken into account
during the installation.
Connection to sewage pipes:
The BG concrete channels must be installed on a concrete foundation
in accordance with Austrian standard B4710-1, or in single
grain concrete in accordance with RVS 08.18.01. Depending on the
static requirements, a lateral support wedge may be required – see
installation details or ask the BG application technicians. The
channel elements should only be installed with suitable tools
(e.g. BG laying clamp).
Infiltration beneath the channel:
The layers of the floor beneath the channel must meet infiltration
requirements. The BG concrete channels are installed on a correspondingly
dimensioned gravel bed in a concrete foundation in accordance
with Austrian standard B4710-1, or in single grain concrete
according to RVS 08.18.01. The outlet opening must be exposed
(e.g. with DN150 Polokal pipes). Depending on the static requirements,
a lateral support wedge may be required. See installation
details or ask the BG application technicians. The channel elements
should only be installed with suitable tools (e.g. BG laying clamp).
Begin by laying the channel runs from the junction to the outlet.
The flow direction on each channel is indicated with an arrow.
The butt joints between the individual drainage channels must be
sealed with a suitable sealant or glued. See the BG seal system for
material descriptions and quantity determination.
Before the manufacturing of the adjacent ground cover, lay the
covers and, if necessary, secure or reinforce the channels so that
they do not push against each other. When sealing the upper
structure and surface layer (asphalt, pavement, concrete, etc.), ensure
that the channels are not damaged.
For any arising horizontal forces (e.g. concrete surfaces, gradients,
etc.), an adequately dimensioned expansion joint needs to be
placed at a distance of 30-200 cm to the channel in the area of the
channel connection. The expansion joints running perpendicular to
the channel runs must be arranged so that they can run through
a channel butt joint.
For installation application in heavily frequented areas, we recommend
securing the cover with “fiX” fasteners or screws (max.
tightening torque of 40 Nm) depending on the area of application
and the frequency and speed of crossing.
All adjacent cover layers should always be installed 3-5 mm above
the upper surface of the channel in order to avoid mechanical damage
(e.g. through snow removal) and ensure draining of the water.
A 15 kN
B 125 kN
C 250 kN
D 400 kN
E 600 kN
Concrete quality - foundation acc. To austrian-standard B 4710-1 *
≥ 8 cm
≥ 10 cm
≥ 15 cm
≥ 15 cm
≥ 15 cm
min. channel height - 5 cm
≥ 8 cm
≥ 10 cm
≥ 15 cm
≥ 20 cm
≥ 20 cm
DN 8 all 20 cm
* concrete grade is a minimum requirement and must be adapted to local requirements
Technical filter in accordance with Austrian standard B 256-3
After the installation of the FILCOTEN® green channels in accordance
with the standards (see previous paragraph), the trapezoid
perforated plate is inserted. The protruding end of the
trapezoid perforated sheet (transfer) must be butt-joined with the
front side (end plate of the channel). Afterwards, the next sheet
with the transfer is placed on the first plate – care must be taken
to ensure that they overlap correctly.
Afterwards, the trapezoid perforated sheet must be sealed to the
The filter material is placed in the channel using a “big bag”.
There is a recloseable filling hose on the bottom of the “big bag”.
The correct height, i.e. the correct filter thickness of 30 cm, can
be achieved by using the tool supplied to smooth
the filter material.
The prefilter is placed on the filter material with the denser side
facing down (marked with an “U”) and pulled up on the side walls.
The cast iron gratings are inserted to the installed channels
and 4-point bolted.