DAYLIFF DS, Инструкция по установке и эксплуатации, Страница: 8 / 16

Not
Allowed
Allowed
Fig. 3 Pump Axis Limits
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5. INSTALLATION
i) Pump Application
Ÿ
A wide range of pump models are available and the pump selected must be
matched to the borehole output to provide optimal operating performance. This
should be done with reference to the borehole drillers report in consultation with
a borehole installation specialist. As a rule pump output should not exceed 65%
of maximum tested borehole yield.
Ÿ
Minimum Borehole Diameter 3”pumps -100mm, 4”pumps-110mm, 6”pumps-
160mm, DS30-200mm.
Ÿ
Maximum Pump Immersion Depth - 200m for DSP, 250m for DS and 35m for
D3SP.
Ÿ
Pumped liquid should be clean, thin and non-explosive containing no solid 3
particles or fibres. Sand content should not exceed 50gm/m or else pump life
will be reduced and any warranties will be invalidated.
0
Ÿ
Liquid temperature should not exceed 40 C in order to preserve rubber
components. Also for high temperatures one motor size larger should be fitted to
prolong motor life due to high operating
temperatures.
Ÿ
Pumps can be installed either vertically or
horizontally, though if installed horizontally the
discharge outlet should never fall below the
horizontal plane. For all horizontal installations
a flow sleeve should be used and also there
should be a minimum of 0.5m water depth
above the pump to prevent the formation of a
vortex.