S 10 / S 15
18
Flexible connecting hoses
Installation guidelines
Hose DN
D
external
PN
R
min
8 mm
12 mm
20 bar
27 mm
Ensure sufficient equipotential bonding.
• The permissible bending radius R
min
= 27 mm must be observed at all times, includ-
ing during transport and assembly as well as when installed. If it is not possible to
observe the minimum bending radius, a different installation method should be
used or a suitable hose should be selected.
Please refer to the table for the minimum length
L
min
L
min
α
= 90°
L
min
α
= 180°
L
min
α
= 360°
60 mm
140 mm
180 mm
260 mm
• For curved installation there must be sufficient hose length available to form
an open loop, as otherwise the hose will become kinked at the joints and thus
destroyed.
• The hose length may change slightly due to the effects of pressure or heat. For
straight installation, allowance should therefore be made to compensate for chang-
es in the hose length.
• Never twist or kink the flexible connection.
• Ensure that the hose is never stressed by external tensile or compressive forces dur-
ing assembly or when in use.
• Rigid connections (external thread) should not be further tightened after attaching
the second connection, as this causes twisting and may damage the hose.
• The hose installer is always responsible for ensuring a tight join.
• The installer should check any sealing material supplied with the hose to ensure
that it is suitable, as the hose manufacturer does not know the connection material
or geometry.
R
min
D
external
correct
correct
correct
X
Bend
Pipe bend
correct
wrong
wrong
wrong
wrong
L
min
6. Installation
