General; Applications - Grundfos SQ Installation And Operating Instructions Manual

The text accompanying the three hazard symbols
DANGER, WARNING and CAUTION is structured in
the following way:
SIGNAL WORD
Description of hazard
Consequence of ignoring the warning.
- Action to avoid the hazard.
A blue or grey circle with a white graphical
symbol indicates that an action must be
taken.
A red or grey circle with a diagonal bar,
possibly with a black graphical symbol,
indicates that an action must not be taken
or must be stopped.
If these instructions are not observed, it
may result in malfunction or damage to the
equipment.
Tips and advice that make the work easier.

2. General

WARNING
Electric shock
Death or serious personal injury
- The pump must not be used when
people are in the water.
On page 412 of these installation and operating
instructions, you will find copies of the pump and
motor nameplates.
Before the SQ/SQE pump is lowered into the
borehole, this page should be filled in with the
relevant nameplate data.
These installation and operating instructions must be
kept in a dry place near the installation site for
reference purposes.
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2.1 Applications

The SQ and SQE pumps are designed for pumping
thin, clean, non-aggressive, non-explosive liquids,
not containing solid particles or fibres.
Typical applications:
• Groundwater supply for
– private housing
– small waterworks
– irrigation systems in for instance green houses.
• Liquid transfer in tanks.
• Pressure boosting.
The SQE-NE pumps are designed for pumping thin,
clean, non-explosive liquids, not containing solid
particles or fibres.
These pumps are suitable for pumping contaminated
or hydrogen-carbonate containing groundwater, e.g.
from
• dumps
• chemical depots
• industrial areas
• oil and petrol filling stations
• environmental applications.
The SQE-NE pumps can also be used for sampling
and monitoring and to some extent for incorporation
in water treatment systems.
Information applying to all pump types
The maximum sand content of the water must not
3
exceed 50 g/m . A larger sand content will reduce
the life of the pump and increase the risk of blocking.
If liquids with a viscosity higher than that of
water are to be pumped, please contact
Grundfos.
pH values
SQ and SQE: 5 to 9.
SQE-NE: Please contact Grundfos.
Liquid temperature
The temperature of the pumped liquid must not
exceed 35 °C.