31
CONSTRUCTION EUROPE
OCTOBER 2013
PUMPS
>
W
hether it is a dewatering or a slurry
pump that is needed on site, it has
to be the right model, operated
correctly, and it should be working efficiently
to get the best out of it, which means regular
maintenance.
The first requirement is to choose a pump
that is suitable for the job and, of course,
new pump models are being introduced all
the time.
For example, the WEDA 04S is the latest
addition to the Atlas Copco Portable Energy
line-up of small submersible pumps. This
range is primarily intended for the light
construction and general equipment rental
industries.
The WEDA 04S is a 0.4kW on-site sludge/
trash pump which the company said had
a maximum flow of 270 litres/m and a
maximum head of 10.5m.
It complements theWEDA line of under 1kW
single-phase drainage, sludge and residual
pumps released last year.
The WEDA 04S has a cast iron vortex
impeller that Atlas Copco said was be able
to pump dirty water and handle solids up to
25mm in size.
The company said this made the pump
a practical choice for dewatering sewage
in flooded building basements or on
construction sites, removing rainwater
from sandy or muddy ditches and
excavation sites, or getting rid of
unwanted water during maintenance
of utility manholes.
TRIPLE SEAL
The pump is described as robust and
easy to maintain thanks to its triple
seal system – double mechanical
shaft seals constructed from silicon
carbide with an additional lip seal.
Thermal protection gives the motor
additional reliability and run-dry
capabilities.
Atlas Copco Portable Energy
added that its low weight – at
10kg – and compact dimensions
– it measures 372.5mm by 241mm
Keep on
running
A pump has a variety of different functions
on a construction site.
Sandy Guthrie
investigates some of the latest launches,
and finds out how to keep them running
Choosing the pump for the job, like
this from Atlas Copco, is important
TheWEDA range from Atlas Copco
Portable Energy is primarily
intended for light construction
and general equipment rental
