Grundfos 3 SQF-2 SQFlex Solar Pump

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Grundfos 3 SQF-2 SQFlex Solar Pump

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Grundfos 3 SQF-2 SQFlex Solar Pump

3 SQF-2 SQFlex Solar Pump

Whether it's used for livestock watering, a pressure system on a remote cabin, or for irrigation, the SQFlex system can be tailored to meet any requirements. Based on the location, depth to water, and the volume of water required, Grundfos' exclusive sizing program finds the best pump and most efficient energy source for your application. The SQFlex system from Grundfos is not just another solar pump; it's a revolution in remote water supply. Designed for maximum reliability, maintenance-free operation, and the flexibility to adapt to virtually any application, SQFlex provides water wherever necessary and whatever the local conditions. Eleven different pump models cover a wide range of heads and flows to allow pumping at extended depths (820 ft) or at high flow rates (80 gal/min) or anywhere in between, depending on your requirements.

Potential SQ Flex applications include:

  • Live stock watering
  • Remote Homes
  • National/State Parks
  • Irrigation
  • Remote Camps
  • In locations where power is scarce and water is a necessity.

Features of the Grundfos 3 SQF-2 SQFlex Solar Pump:

  • Dry-Running Protection: This unique feature shuts down the pump if it detects water shortage. Every SQFlex pump comes standard with this sensor pre-installed, protecting the well from being over-pumped and the pump from damage.
  • Helical Rotor Pump (3"): Designed to pump high levels very efficiently, these models allow pumping levels as deep as 820 ft. The 3 in. diameter allows the pump to go in installations where others can't.
  • Centrifugal Pump (4"): Based on Grundfos' 40 years of experience in submersible pumps, these models are capable of providing high flows, up to 80 gal/min, at moderate heads.
  • Materials: All Stainless steel for long pump life.
  • Motor: Only one motor size covers the entire pump range. Designed for peak efficiency and complete reliability, the motor features integrated electronics, eliminating the need for complicated external controls.
  • Motor Protection: Built in protections against over-temperature, overload, and over and under-voltage for reliability, as well as two-way communication with a control box to alert you in case there's a problem.
  • Any Voltage: The motor can operate under any voltage from 30 - 300 VDC and 90 - 240 VAC without additional controls, making sizing and installation easy, even as a retrofit to existing installations. AC power capabilities mean every SQFlex pump has the ability to use an AC generator for backup power.
  • Simple installation
  • Reliable water supply
  • Virtually no maintenance
  • Cost-efficient pumping — every day!

Also Known As:

Also Known As:

Pump ModelPump TypeMax HeadMax Flow
3 SQF-2Helical Rotor395 ft3 gal/min
3 SQF-3Helical Rotor655 ft3 gal/min
6 SQF-2Helical Rotor395 ft6 gal/min
6 SQF-3Helical Rotor820 ft6 gal/min
11 SQF-2Helical Rotor395 ft13 gal/min
16 SQF-10Centrifugal230 ft22 gal/min
25 SQF-3Centrifugal50 ft40 gal/min
25 SQF-6Centrifugal90 ft39 gal/min
25 SQF-7Centrifugal185 ft40 gal/min
40 SQF-3Centrifugal50 ft70 gal/min
40 SQF-5Centrifugal100 ft70 gal/min
60 SQF-3Centrifugal50 ft80 gal/min
Technical DataSQF Pump
Power supply to pump30-300 VDC, PE.
1 x 90-240 V —10%/+6%, 50/60 Hz, PE.
Run-up timeDepends on the energy source.
Start/stopNo limitation to the number of starts/stops per hour.
Enclosure classIP 68.
Motor protectionBuilt into the pump. Protection against
• dry running by means of a water level electrode
• overvoltage and undervoltage • overload • overtemperature.
Conductivity≥70 μs/cm (micro siemens).
Sound pressure levelThe sound pressure level of the pump is lower than the limiting values stated in the EC Machinery Directive.
Radio noiseThe SQF complies with the EMC Directive 89/336/EEC. Approved according to the standards EN 61000-6-2 and EN 61000-6-3.
Reset functionThe SQF can be reset via the CU 200 or by disconnecting the power supply for 1 minute.
Power factorPF = 1.
Operation via generatorVoltage: 230 VAC —10%/+6%.
The generator output must be
• minimum 1000 W (helical rotor pumps)
• minimum 1500 W (centrifugal pumps).
Earth-leakage circuit breakerIf the pump is connected to an electric installation where an earth-leakage circuit breaker (ELCB) is used as an additional protection, this circuit breaker must trip out when earth fault currents with DC content (pulsating DC) occur.
Borehole diameter3 SQF, 6 SQF, 11 SQF: Minimum: 3 in.
16 SQF, 25 SQF, 40 SQF, 60 SQF: Minimum: 4 in.
Installation depthMinimum: The pump must be completely submerged in the pumped liquid. Maximum: 500 ft below the static water table (220 psi).
Suction strainerHoles of the suction strainer: 3 SQF, 6 SQF, 11 SQF: ø0.090 in.
16 SQF, 25 SQF: ø0.10 in.
40 SQF, 60 SQF: 0.16 in x 0.80 in.
Pumped liquidspH 5 to 9. Sand content up to 50 ppm.

Important note for the Grundfos 3 SQF-2 SQFlex Solar Pump

Shipping Note: Due to the delicate/oversized nature of this product, our online shipping system is not able to accurately determine the cost for shipping. You may proceed with an online order and we will contact you prior shipping this item or please Contact Us and we will work to get you the exact shipping cost.
Note: Specifications and pricing of the Grundfos 3 SQF-2 SQFlex Solar Pump subject to change without notice. Illustrations and descriptions of the Grundfos 3 SQF-2 do not claim to be complete or exhaustive.

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