10
Figure 10. Pipe on V-beam
C.
V-beam for pipe stringing
Step C.1.
Preparation of location
−
Make sure the construction area is visibly marked and the transport and emergency routes are clearly indicated.
−
Make sure the surface on which the V-Sup will be installed is
levelled
, make sure that the maximum slopes
named on page 5 are respected.
Check the right-of-way (pipeline route) for any slopes.
−
Make sure the surface on which the V-Sup will be installed is
flat
, unevenness in the terrain of maximum 20 mm
are acceptable. Unevenness larger than 20 mm should be levelled out properly.
−
Make sure the surface on which the V-Sup will be installed is
free of ice, snow, oil, mud, algae
, or any other
substances that have a negative influence on the friction.
−
Make sure the surface on which the V-Sup will be installed is free of obstacles (such as wood, stones, gravel
or any other obstacles).
−
Make sure the minimum and maximum operating temperatures of respectively -30 and +45
°
C are respected.
Step C.2.
Installation of the V-beams
−
For pipe stringing, at least two V-beams per pipe are necessary.
−
Make sure all V-beams are
free of ice, snow, oil, mud, algae, or
any other substances that have a negative
influence on the friction.
−
Make sure the V-beams segments are not damaged, deformed or worn down.
−
The alignment of the V-beams is of vital importance for the safe functioning of the system. The V-beams needed
for one pipe should be aligned parallel.
−
To give the best support for the pipes, the V-beams have to be placed at a set distance according to the pipe
length and the amount of V-beams needed. The distance is prescribed as a percentage of the pipe length.
Figure 7 shows the prescribed distances with 2, 3 and 4 supports.
