FLEXWELL® Safety Pipe –
innovative and proven in many
applications
Safety through double-walled
construction
The surveillance space between the
inner and outer pipes enables per-
manent leak monitoring using ap-
proved leak detection devices oper-
ating either on the positive pressure
or vacuum principle. The use of
these systems is compliant with the
highest European safety standards.
The system is constructed with safe-
ty in mind and will detect any leak
above or below the fluid level within
a double-walled protective system.
Safety through permanent
monitoring and remote diagnostic
systems
The leak detector online diagnosis
(LOD) system enables safe and on-
going remote monitoring of a leak
detection device. All operating para-
meters are recorded around the
clock, automatically transmitted to
the LOD server and analyzed there.
Any irregularities which may be de-
tected in the leak detection system
can already be recognized in this
way even before the annual mainte-
nance check is due and can there-
fore be pinpointed more easily and
fixed, thus reducing costs.
When an alarm is given, all relevant
stakeholders are informed by text
message and/or email.
FLEXWELL® Safety Pipe –
the features
General type approval:
Z-38.4-253
Universal connection fittings
The use of FLEXWELL® Safety Pipe
is designed for the transport of very
diverse media. The demands placed
by these require connection fittings
which are just as reliably tested
and certified. With the GRAPA®-
modular system it is possible to offer
a comprehensive range of different
connections, all based on identical
principles and workmanship.
In the course of technical mod-
ernization and development, the
following joining techniques for the
connections have proved to be the
best:
A graphite with cutting ring
(non-welded)
B graphite with soldered end
C graphite with rubber seal
(non-welded)
D TIG welding/hard-soldering
FLEXWELL® Safety Pipe – connection fittings
Dimensions:
Pressure range:
Temperatures:
Laying:
Applications:
DN 12 – DN 150
25 bar, PN 25
–10 °C to +50 °C
below ground
and above ground
Transport of environ-
mentally hazardous,
flammable, toxic
fluids and gases
A
B
C
D
2
L
N
G