Applications; Storage And Operating Conditions; Sound Pressure Level; Caution - Grundfos Unilift AP12 Montage- Und Betriebsanleitung

2.1 Applications

The Grundfos Unilift AP pump is a single-stage
submersible pump designed for the pumping of
wastewater.
The pump is capable of pumping water which
contains a limited quantity of solids, however not
stones and similar materials, without being blocked
or damaged.
The pump is available for automatic as well as
manual operation and can be installed in a
permanent installation or used as a portable pump.
The pump is suitable for these applications:
Applications
Groundwater lowering
Pumping in drainage pits
Pumping in surface water
pits with inflow from roof
gutters, shafts, tunnels, etc.
Emptying of ponds, tanks,
etc.
Pumping of fibre-containing
wastewater from laundries
and industries
Pumping of surface water
from septic tanks and
sludge treating systems
Pumping of domestic
wastewater without
discharge from water
closets
Pumping of domestic
wastewater with discharge
from water closets
Maximum particle size
[mm]
Warning
The pump must not be used in or at
swimming pools, garden ponds, etc. when
there are persons in the water.
Incorrect application of the pump (e.g. resulting in
blocking of the pump) and wear are not covered by
the warranty.
6
AP12 AP35 AP50
● ● ●
● ● ●
● ● ●
● ● ●
● ●
● ●
● ●
●
12 35 50

2.2 Storage and operating conditions

Storage temperature
Minimum liquid
temperature
Maximum liquid
temperature
Installation depth
pH value
Density
Viscosity
Technical data
Always have at least 3 m free cable above
liquid level. This limits installation depth to

Caution

7 m for pumps with 10 m cable and to 2 m
for pumps with 5 m cable.
Pumps with 3 m cable are for industrial
Caution
applications only.

2.3 Sound pressure level

The sound pressure level of the pump is lower than
the limiting values stated in the EC Council Directive
2006/42/EC relating to machinery.
Down to -30 °C.
0 °C.
55 °C continuously.
Up to 70 °C for periods not
exceeding 3 minutes.
Then the pump must cool
down.
Maximum 10 metres below
liquid level.
Between 4 and 10.
3
Maximum 1100 kg/m .
2
Maximum 10 mm /s.
See pump nameplate.