Operating Conditions; Delivery And Handling; Transportation; Storage - Grundfos DP 10 Serie Montage- Und Betriebsanleitung

2.3 Operating conditions

The DP and EF pumps are designed for intermittent
operation (S3). When completely submerged, the
pumps can also operate continuously (S1). See
section 9.2 Operating modes.
The EF pumps are suitable for pumping effluent and
other liquids with solids up to 30 mm.
Installation depth
Maximum 10 metres below liquid level.
Operating pressure
Maximum 6 bar.
Number of starts per hour
Maximum 30.
pH value
Pumps in permanent installations can be used for
pumping liquids with a pH value between 4 and 10.
Liquid temperature
0-40 °C.
For short periods (maximum 15 minutes) a
temperature of up to 60 °C is allowed (standard
versions only).
Warning
Explosion-proof pumps must never pump
liquids with a temperature higher than 40
°C.
Density of pumped liquid
3
Maximum 1000 kg/m .
In the case of higher values, see Grundfos Product
Center at www.grundfos.com, or contact Grundfos.

3. 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.

3.1 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 pump nameplate.
Warning
Always lift the pump by its lifting bracket or
by means of a forklift truck if the pump is
fixed on a pallet. Never lift the pump by
means of the motor cable or the hose/pipe.
The polyurethane-embedded plug prevents water
from penetrating into the motor via the motor cable.

3.2 Storage

During long periods of storage, the pump must be
protected against moisture and heat.
After a long period of storage, inspect the pump
before it is put into operation. Make sure that the
impeller can rotate freely. Pay special attention to the
condition of the shaft seal and the cable entry.

3.3 Lifting

When lifting the pump, use the right lifting point 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. 4.
Fig. 4 Lifting points
7