3 (9)
BW52-GR, BW50-OC, BW50-IC, BW52, BW50, BW52-GL
Follow these instructions:
1. Inspect the area where the boxwall is to be constructed
The boxwall has been specially designed for firm, even surfaces such as asphalt, concrete,
lawns etc. It is therefore ideal for setting up on streets and paths, across car parks, in industri-
al areas, around shopping malls, in harbours and at airports. It must not be used on surfaces
that are very uneven or on ground that is prone to erosion. Inclinations of the ground of up
to 1:10 is no problem, but abrupt transitions from a surface with one inclination to an other
need to be done perpendicularly. Holes or bumps should be avoided. The straight boxes are
980 mm long but overlap one another, which means each box adds 900 mm to the total bar-
rier length (for the BW50 the corresponding numbers are 705 and 625 mm resp). A boxwall
requires a free width of 680 mm.
Loose sand and gravel must be brushed away from where the wall is to be erected. The soles
attached beneath each box have just as good a grip as the rubber soles on your shoes. If
there is sand on the road you run the risk of slipping, and the same applies for the boxwall.
The coupling between the individual boxes has a built-in flexibility of +/-3°, which means a
boxwall can be drawn in curves. For abrupt changes in direction there are certain corner
boxes. These have an angle of 30° and are available for both inward and outward corners.
The boxwall can be placed on land that is already flooded, but if the ground surface is difficult
to see through the water, you must take particular care to make sure that the boxes are not
placed on uneven surfaces, on the wrong side of surface water drains, etc
The boxes are easy to handle and move, and you can also adjust the setting of a constructed
boxwall as long as the water has not started to press firmly against the base. But you must
avoid dragging the boxes on the ground, as the sealing strips on the underside are vulnerable
to wear and may become damaged.
NOAQ BW52 2.1 200325
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