Grundfos SQFlex Solar Submersible Well Pumps

Grundfos SQ-Flex solar pumps will pump water up to 600 foot total head, and can pump up to 85 gallons per minute for shallow wells. The helical rotor pumps are what we recommend if you have any dirt, sand, sediment, or high mineral water from your well.

The 3 SQF, 6 SQF, and the 11SQF are helical rotor type pumps. All others are centrifugal. All SQF pumps are 17 to 23 pounds in actual weight.

Model Number	Type	Max Head	Max Flow	PV Watts (Min-Max) **	Pump Diameter (Pipe Size)
3 SQF-2	Helical Rotor	360 Feet	3 GPM	100-340	3" (1" NPT)
3 SQF-3	Helical Rotor	600 Feet	2 GPM	130-600	3" (1" NPT)
6 SQF-2	Helical Rotor	360 Feet	6 GPM	100-650	3" (1" NPT)
11 SQF-2	Helical Rotor	300 Feet	11 GPM	50-900	3" (1-1/4" NPT)
16 SQF-10	Centrifugal	210 Feet	20 GPM	400-1400	4" (1-1/4" NPT)
25 SQF-3	Centrifugal	45 Feet	40 GPM	120-760	4" (1-1/2" NPT)
25 SQF-6	Centrifugal	90 Feet	39 GPM	130-1400	4" (1-1/2" NPT)
40 SQF-3	Centrifugal	45 Feet	38 GPM	200-800	4" (2" NPT)
40 SQF-5	Centrifugal	90 Feet	70 GPM	300-1400	4" (2" NPT)
60 SQF-3	Centrifugal	45 Feet	85 GPM	20-1400	4" (2" NPT)

** The watts shown for the PV panels or array are what the pumps needs. To account for wire and other system losses we recommend going 10% to 20% more.

Pump Curves for All SQ-Flex Solar Pumps

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