This versatile maintenance-free submersible pump can lift up to 525 feet. It can be directly powered by solar or wind or can be run on an inverter, generator, battery, or utility power, or any combination of these sources. Virtually any source of power, 30-300 VDC and 90-240 VAC will run the pump. Seven pump models can deliver from 4 gpm at 525 feet to 50 gpm at 20 feet with a one KW solar array or less. Helical rotor pumps for high heads and centrifugal pumps for lower head applications assure a pump that is efficient for any application.

The SQFlex is protected from running dry, overload, or overheating. It will run on solar arrays as small as 129 watts, with operating voltage of over 30 volts. The solar array can be any combination of 3 or more 12 volt nominal PV modules in series. Grundfos also has a specially designed Whisper 200 wind generator that can power the Grundfos SQFlex pumps. Call for details.

The SQFlex features several optional controls that allow you to monitor operating status, power consumption, faults, and dry-running. An optional level switch will turn the pump off when the tank is full. There is an available AC backup that disconnects the solar array when AC power from a generator or grid power is present. A wind interface unit and a generator start controller are also available.