Safety measures
Take care to ensure adequate protection from mechanical
damage to the piping during laying and subsequent construc-
tion work. In particular, ensure that no mechanical damage can
occur to above-ground FLEXWELL®-LPG connection joints,
e.g. by providing protection against vehicles driving against
them.
FLEXWELL®-LPG Piping must be fitted with a system to pre
-
vent the permissible working pressure being exceeded during
operation. Please take this into account when planning th
e
installation of safety equipment
.
Free pipe ends must be sealed to prevent any liquid escaping.
Prior to Laying Pipework
Prior to laying the FLEXWELL®-LPG Piping, a visual test must
be carried out to see if the piping has been damaged durin
g
transit in any way. Slight scratches in the plastic outer casing
are not a problem. Deeper scratches in the outer plastic casing
or extensive abrasion of the plastic surface can be easily re-
paired where necessary using a heat shrink tube.
If there are deeper cracks in the outer plastic casing whic
h
make it seem likely that there is damage to the reinforcing
bands, or if the pipe surface is dented, please only continue
work on the pipe after consultation with BRUGG.
Laying into the trench
The trench must be dug according to the instructions of clause
Pipe trench
.
FLEXWELL®-LPG Piping is laid direct off the reel or from
the ring into the trench and the appropriate length cut off as
required. Due to its extreme flexibility you can lay great lengths
of piping in one piece. Use the bending jig supplied by BRUG
G
for bending the pipe through very tight bending radii
.
Fix the pipe ends to the pipe supports as per clause Pipe
trench. Apply abrasion resistant cloth where the pipewor
k
passes through backfill and concrete layers as per clause
Pipe trench.
Pressure Testin
g
Pressure testing must be carried out in accordance with Codes
of Practice for the country of installation. A maximum pressur
e
of 1.43 times the operating pressure must not be exceeded.
A pressure gauge of suitable accuracy to meet local Codes
of Practice is to be used for this. If analog gauges are used
,
the scale diameter should be at least 100 mm. The pressur
e
gauges must be calibrated once a year to a suitable standard
and the calibration data recorded.
19.03.2026 Subject to technical changes. Page 12