SCHOTTEL SV 1, Manual

Page: 87 / 156

en
7 /
Piping Systems for Hydraulic, Lubrication and Similar Systems STD--Wa 07/3110 1099237 17
2 Hose Lines
General
Usually, all required hose lines are included in the
scope of supply of SCHOTTEL propulsions.
If additional hoses are required the following recom-
mendations are to be observed:
D
The appropriate hose material is to be selected ac-
cording to pressure, pressure medium, tempera-
ture, dynamic load resistance and to the low in-
flammability regulations.
D
For calculating the length of new hoses it is re-
quired to take bending radius and possibly rigid fit-
tings into consideration.
D
After incorporation, the hose lines are to be rinsed
with hot water, to be blown through, and after dry-
ing both tail ends are to be closed.
Placing of hose lines
NOTE
The system drawing indicates the minimum radius for
the hoses supplied by SCHOTTEL.
During installation it is required to pay attention that the
hose line is not submitted to torsion (8/1).
Under load there might be a change in length of a hose
line. Decrease in length signifies an additional tensile
stress of hose and connections.
Therefore, the hose line must be slightly sagging (8/2)
in unpressurised condition.
Do only tighten the swivel nuts until the connection is
tight. Further tightening does not improve tightness but
damages the connection.
1
2
Figure 8