18
Art. Nr.: 5090030031
Rev.: 00/2018-11-27
HSI 150-M... (HSI 90-M...) for smooth or corrugated cable ducts
with clip ring for connection to wall insert HSI 150 (HSI 90)
EN
The compressed fill material in the area of the Hateflex hose
systems is to be incorporated in the overall structure as a key
load-bearing element. The fill material (sand or gravel/sand
mixture) can only act as an effective load-bearing element
if the cable ducts are all spaced equally as required for even
compression. The required spacing between the cable ducts
can be ensured by installing spacers.
11 Preparing installation of Hateflex
hose systems
12 Pipe trench and support
The height and width of the pipe trench influence the size
and distribution of the soil and traffic loads. The dimensions
prescribed by the specifications or structural calculation are
to be observed. The depth of the trench is made up of the
height of the installed cable ducts
(the pipe clearances are defined by the spacers, depending
on the pipe diameter) and the pipe coverage to be achieved.
13 Installation, filling and compression
•
The pipe trench is to be excavated to the necessary depth;
the trench bottom must be compressed in such a way that
subsidence is ruled out.
• The trench bottom is to be levelled free of stones and
kept free of foreign bodies; a sand bed of approx. 10
cm is to be added.
•
Excavated material deposited next to cable trenches may
not be left to fall back in, nor may they endanger struc
-
tural stability.
• The hoses are to be placed on the support in a straight
line, avoiding curves, and attached laterally. Installation
in a sinuous line significantly reduces the feed depth
available later.
•
The Hateflex hose system is to be covered with 10 cm of
sand and compressed by hand. The remaining pipe trench
is to be filled in layers of 30 cm with stone-free fill mate
-
rial and compressed. While they are being compressed,
the pipes may no longer be shifted to the side. Finally, a
warning tape is to be applied.
• Pipe installation must be carried out according to the
currently valid regulations.
14 Bending radiuses
The following minimum bending radiuses apply to Hauff-Tech
-
nik Hateflex systems at an installation temperature of 20° C:
Hateflex 14078 400 mm
Hateflex 14090: 400 mm
Hateflex 14110: 500 mm
Hateflex 14125: 600 mm
Hateflex 14150: 900 mm
If cable ducts are installed in multiple rows, the installation
and fill work in the area of the cable ducts overlap (see Fig.
15). Skilled experts must be deployed in carrying out and
monitoring the construction project. The following spacing
dimensions are to be observed, depending on the diameter
of the pipes to be installed:
16 Assembly:
Legend for Fig. 15
1 Duct trench
2 Spacers
3 Cable duct
4 Distance A
5 Pipe diameter d
6 Trench bottom: stone-free or 10 cm compressed
sand bed
7 Height of pipe bundle
8 10 cm upper limit of line zone according to
DIN EN 1610
9 Coverage
15b Installation in multiple rows
1
Lay bottom layer pipes and set spacers (distance
between spacers: approx. 1.5 m).
Fill up space between and next to the pipes and
compress.
2
Hauff spiral hose
(d)
Distance
(A)
87 mm (Hateflex 14078)
min. 30 mm
102 mm (Hateflex 14090)
min. 30 mm
125 mm (Hateflex 14110)
min. 40 mm
140 mm (Hateflex 14125)
min. 40 mm
168 mm (Hateflex 14150)
min. 40 mm
Table 5
Legend for Fig.:14
1 Duct trench
2
e.g. 4x Hateflex 14110
3 Distance A
4 Pipe diameter d
5 Trench bottom: stone-free or 10 cm compressed
sand bed
6
Compression of Hateflex hoses with 10 cm
coverage
7 Compressed soil
15a Installation in single rows
