The Grundfos SQFlex AC/DC-powered submersible pump range now includes high-speed models to facilitate even better coverage of your solar-powered water pumping needs. Powered by renewable energy sources, such as solar and wind power, the SQFlex submersible groundwater pump offers the perfect water supply solution for remote areas. The pump’s use of renewable energy sources keeps operating costs extremely low. Built-in variable frequency drives convert DC power from the solar panels into AC power for pumping.

SQFlex offers a choice between helical or multi-stage centrifugal hydraulics, and it is a perfect fit for any solar water pumping system. It is suitable for a variety of application areas, including commercial buildings (such as schools or hospitals), farms, ponds, lakes and in conservation areas, as well as domestic homes.

The new generation of SQFlex control units

Grundfos CU 202 offers cutting-edge technology to make monitoring and control of pumps easier for you via Bluetooth and WiFi connection. Watch this product animation to learn about the features and benefits of these state-of-the-art control units.

A solar pumping solution you can count on

Designed using over 75 years of pump experience and over 40 years of solar technology expertise, the SQFlex is built for reliability and durability. As the first solar pumping solution of its kind, the SQFlex has evolved to include a robust range of features and is used in water supply applications around the globe.

The SQE submersible groundwater pump is one of the most advanced submersible pump solutions for domestic applications. Equipped with a permanent magnet motor and a built-in variable speed drive, it enables performance adjustments by means of communication with an external control box.

SQE features a variable speed drive, which helps the pump to automatically adjust itself to ensure constant water pressure regardless of changing demands, eliminating weak or fluctuating water supply and improving comfort. SQE is provided as an all-in-one box solution, easy to both install and operate. It is suitable for continuous and intermittent operation for a variety of applications, including groundwater supply and pressure boosting.

Constant pressure provides more comfort

Thanks to the built-in variable speed drive, SQE delivers constant water pressure regardless of the number of opened taps. This increases homeowner comfort.

The motor in the SQE offers power line communication, also known as mains borne signalling, when communicating with the optional CU300 or CU301 control box. This saves you the time and trouble of running any additional wires through the well.

Its soft start feature minimises the risk of pump wear and reduces the occurrence of water hammer in the pipes, resulting in an increase of the overall lifetime of your SQE.

SQE has a very wide supply voltage range which reduces the risk of overheating the motor, improving your peace of mind.

The Grundfos SP submersible is a highly durable pump made of high-grade, corrosion-resistant stainless steel. Resistant to sand and aggressive water, SP also boasts features such as dry-running protection and motor burnout protection, both of which contribute to the impressive durability of the pump.

Thanks to the optimised hydraulics design, the SP delivers optimum efficiency during periods of high demand, ensuring low long-term costs and high operating reliability. The pumps are suitable for a variety of applications, including groundwater supply to waterworks, irrigation, groundwater lowering, pressure boosting, and industrial applications.

Efficient and reliable submersible pumps

Combining the very best materials with excellent hydraulic design makes for a highly efficient and reliable pump.

Resistant to corrosion

High-grade, AISI 304 stainless steel both inside and out makes the SP extremely resistant to corrosion.

The right solution

SP is available in many variants and sizes and it can be entirely customised to your specific application, ensuring that you always get the right solution.

Non-return valve

Its built-in non-return valve minimises the risk of damage from water hammering.

The Grundfos SQ is a compact 3” multistage centrifugal pump, which can be installed in boreholes that are 3” or larger. Featuring built-in electronics, it is simple to install and operate and guarantees a reliable water supply at all times. The SQ submersible groundwater pumps are equipped with permanent magnet motors and can supply pump heads up to 200 m.

The single high-speed SQ submersible groundwater pump is suitable for both continuous and intermittent operation for a variety of applications, including domestic water supply, small water works, irrigation and groundwater lowering.

SQ is big in performance and small in size

Thanks to its high-speed permanent magnet motor, the SQ pump offers high performance in relation to its compact design.

Its corrosion-resistant stainless steel ensures the SQ groundwater pump a long, reliable life, providing you with peace-of-mind.

Dry-running and overload protection safeguards against liquid absence and unstable motor supplies.

Built-in electronics make SQ very easy to install and operate.