SQFlex data booklet

Applications
Being designed for continuous as well as intermittent
operation, the SQFlex system is suitable for water supply
applications in remote locations, such as:
• villages, schools, hospitals, single-family houses
• farms (livestock watering, irrigation)
• game reserves(watering applications)
• conservation areas (pumping of surface water)
• floating pump installations for water pumping from ponds
and lakes.
SQFlex system
The SQFlex system is a reliable water supply system based
on renewable energy sources, such as solar and wind
energy. The SQFlex system incorporates an SQF
submersible pump.
Very flexible as to its energy supply and performance, the
SQFlex system can be combined and adapted to any need
according to the conditions of the installation site.
The system components are:
• SQF submersible pump
• CU 200 SQFlex control unit
• CIU 903 SQFlex control unit (option for remote
monitoring)
• IO 50 SQFlex switch box
• IO 101 SQFlex switch box
• IO 102 SQFlex breaker box
• charge controller
• energy supply system:
- solar panels
- wind turbine
- generator
- batteries.
Pump
The SQF pump range comprises two pump technologies:
• helical rotor pump (3") for high heads and small flow
rates
• centrifugal pump (3" and 4") for low heads and large flow
rates.
The performance curves below illustrate the pump
performance of the two pump models.
Q
H
A
B
TM022425
Performance ranges for helical rotor and centrifugal pumps
Pos. Description
H Head
A Helical rotor pump
B Centrifugal pump
Q /day
All pump types are available in stainless steel AISI 304.
Motor
The motor is developed specifically for the SQFlex system
and designed according to the permanent-magnet principle
with built-in electronic unit.
The SQFlex 3" motor range comprises different motor sizes,
the MSF 3 with 4 different maximum power input (P1)
ratings: 300 W, 900 W, 1400 W and 2500 W.
The motor speed range is 3000-10700 min
-1
or 500-3600
min
-1
, depending on the motor size, power input and load.
The motor is available in stainless steel AISI 304.
The motor has the following internal limitations:
• maximum power input (P1)
• maximum current of 8,4 A or 12 A
• maximum speed of 10700 min
-1
or 3600 min
-1
.
The pump delivers its maximum performance when one of
the above limitations is reached.
Supply voltage
In terms of power supply and range, the motor is flexible
and it can be supplied with either DC or AC voltage:
• 30-300 VDC, PE (100-300 VDC for 2500 W motor)
• 1 x 90-240 V - 10 %/+ 6 %, 50/60 Hz, PE.
SQFlex
1
4
Product data