Grundfos SEG Series, Instructions Manual

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Eng
lish (US)
4
3.3 Operating conditions
The Grundfos SEG range are designed for intermittent operation
(S3). When completely submerged, the pumps can also run
continuously (S1). See section
10.2 Operating modes
.
Installation depth
Maximum 38 ft (10 m) below liquid level.
Operating pressure
Maximum 87 PSI (6 bar).
Number of starts per hour
Maximum 30.
pH value
Pumps in permanent installations can cope with pH values
ranging from 4 to 10.
Liquid temperature
32-104 °F (0-40 °C).
For short periods (maximum 15 minutes), a temperature of up to
140 °F (60 °C) is permissible (non-Ex versions only).
Density and viscosity of pumped liquid
When pumping liquids with a density and/or a kinematic viscosity
higher than that of water, use motors with correspondingly higher
outputs.
4. Delivery and handling
The pump may be transported and stored in a vertical or
horizontal position. Make sure that it cannot roll or fall over.
4.1 Transportation
All lifting equipment must be rated for the purpose and checked
for damage before any attempts to lift the pump. The lifting
equipment rating must under no circumstances be exceeded. The
pump weight is stated on the nameplate.
The polyurethane-embedded plug prevents water from
penetrating into the motor via the motor cable.
4.2 Storage
For long periods of storage, the pump must be protected against
moisture and heat.
After a long period of storage, the pump must be inspected before
it is put into operation. Make sure that the impeller can rotate
freely. Pay special attention to the shaft seals and the cable entry.
4.3 Lifting
When lifting the pump, use the right lifting point in order to keep
the pump balanced. Place the lifting chain hook in point A for
auto-coupling installations and in point B for other installations.
See fig.
2 .
Fig. 2
Lifting points
Warning
Explosion-proof pumps must never pump liquids with
a temperature higher than 104 °F (40 °C).
Note
Note
For single-phase pumps, 2 hp (1.5 kW), working at
10 % overvoltage, pumping 104 °F (40 °C) liquid, the
maximum continuous operating time is six minutes. If
the six minutes are exceeded, the thermal switch
inside the motor windings might be activated and
cause the pump to stop.
FM
Warning
Always lift the pump by its lifting bracket or by means
of a fork-lift truck if the pump is fixed on a pallet.
Never lift the pump by means of the motor cable or
the hose or pipe.
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