submersible pump brochure

Designed with over 75 years of pump experience and over
40 years of solar technology expertise, the SQFlex is built
with proven technology for reliable operation.
Versatile product applications:
• O-grid water supply
• Livestock watering
• Water supply for homes and communities
• Crop watering
Designed for your needs:
The SQFlex range is compatible with solar, wind
or combination systems, and is available in three
congurations – 5 helical rotor models (3” diameter),
5 centrifugal models (3” diameter) and 6 centrifugal
models (4” diameter). With centrifugal and positive
displacement models available, Grundfos oers the best
range of solutions for the most challenging applications.
• AC/DC power inverter with a universal
connection (not polarity specific), built directly
into the pump
• Capable of tolerating the widest incoming
voltage range on the market (30-300 VDC |
90-240 VAC)
• High efficiency PM/BLDC motor
• AISI stainless-steel 304 and 316 construction
options with sacrificial anode available
• Virtually no maintenance
• Integrated dry run and motor protection
• Reliable and proven water supply technology
TECHNICAL SPECIFICATIONS
The Grundfos SQFlex AC/DC powered submersible pump range now includes high speed
models to ensure even better coverage of your solar-powered water pumping needs.
Extended
SQFLEX SOLAR POWERED
SUBMERSIBLE PUMP RANGE
Max. ow rate: 18 m
3
/h (90 m
3
/day) | 79 gpm
Max. head: 250 m | 820 ft
Liquid temperature: 0°C to +40°C | 32°F to 104°F
Max. submergence depth below
static water level:
152 m | 500 ft
Voltage range:
30 to 300 VDC (100 to 300 VDC for 15SQF-290,
22SQF-220, 30SQF-160), 1x90-240 VAC, 50/60 Hz
Max current:
12 A
Pump enclosure class: IP68