Berg Hortimotive
2-2016
Translated user manual
BRW185 V3_2016
10/27
5.3
SKEWNESS INDICATOR
The pipe rail trolley is equipped with a skewness indicator. The indicator transmits an
acoustic signal if the trolley exceeds a obliquity of 2°. In the latter event, all activities
should be ceased immediately and the pipe rail system readjusted/levelled.
1.1 The pipe rail system should be erected in such a way that the stability of the pipe rail wagons, which are designed to run on the
rails, should never present a dangerous situation. To that end the following should be taken into account:
a) pipe rail supports should all correspond, or at least be of the same specifications: steel base plates 1.5 mm thick with reinforcing
sections; base plate width at least 115 mm; and long enough so that the base plates stick out a minimum of 70 mm from the two
upright supports which carry the pipes.
b) pipes should correspond, or at least be of the same specifications given in the table below:
TABLE: Pipes
Category
Track width
in mm
6
Pipe diameter / wall
thickness in mm
Support distance
in mm
Permissible axle weigh
in kg with St 33
1, 2, 3, 7, 8
1
420 to 600
Ø 51 / 2.25
max 1250
260
4
2
550 to 600
Ø 51 / 2.25
max 1670
220
5
3
420 to 600
Ø 45 / 2
max 1000
221
4
4
420 to 600
Ø 45 / 2
max 1250
177
4
5
420 to 600
Ø 38 / 2
max 1000
157
4
6
420 to 600
Ø 38 / 2
max 1250
126
4
1
Using Steel 37 (St 37) the permissible axle weight can be raised by a factor of 1.2.
2
The permissible axle weight depends on the length of the wheelbase of the wagon with regard to the support distances: the axle
weight given in the table applies to pipe rail wagons with a wheelbase less than 62.5% or those greater than 125% of support
distance.
3
Using wagons with a wheelbase greater than 62.5% but less than 125%
of the support distance, the permissible axle weigh may
raised by a factor of 1.3.
4
The permissible axle weight is given for a track width of 420. With wider track widths the permissible axle weight is raised by the
following correction factors: 1.08 with track width 500 mm; 1.13 with track width 550 mm; and 1.17 with track width 600 mm.
5
The permissible axle weight is given for a track width of 550 mm. The permissible axle weight for a track width of 600 mm may be
raised by a 1.04 correction factor.
6
The track width is the centre to centre distance between the pipes. For a track width greater than 600 mm, the same permissible
axle weight can used as for 600 mm.
7
If a smaller support distance is used than shown in the table above, then the permissible axle weight may be higher than given:
the correction factor is changed in proportion to the reduction in the support distance.
8
Using pipe rail wagons with an axle weight greater than shown in the table is only permitted if it is clear that the wheel pressure in
unfavourable load conditions is no greater than 75% of the loading level where the rails begin to buckle, and for no more than 5
mm from the original; and the carrying capacity of the pipe rail support is not exceeded (according to item 1.1, a) with respect to the
foundation; that being a load of 300 kg.
Fig. 5.1; Chapter 1.1 of Article 1 of Policy Regulation 3.2; Pipe Rail Systems in
Greenhouses Working Conditions Act (10-02-2004).
