The Grundfos SQFlex solar pumps are engineered to provide reliable and sustainable water pumping solutions across various applications, including agricultural irrigation, livestock watering, and remote community water supplies. These pumps are designed with versatility in mind, capable of operating on multiple power sources to ensure continuous functionality in diverse environments.

Key Features:

• Versatile Power Compatibility: The SQFlex pumps can be powered by a wide range of energy sources, including solar panels, wind turbines, batteries, generators, inverters, or the utility grid. They accept input voltages from 30 to 300 VDC and 90 to 240 VAC, providing flexibility in power options.

• Integrated Protection Mechanisms: Equipped with built-in safeguards, these pumps offer protection against dry running, overloading, and overheating, enhancing durability and reducing maintenance needs.

• High Efficiency Across Applications: Designed to operate efficiently with various power inputs, the SQFlex pumps are suitable for both high-head and low-head applications, making them adaptable to different water supply requirements.

• Robust Construction: Constructed with high-quality stainless steel materials, these pumps are built to withstand harsh environmental conditions, ensuring longevity and reliable performance.

Pump Models and Specifications:

The SQFlex series includes multiple models tailored to meet specific needs. Below is a selection of available models:

Model	Type	Max Head	Max Flow	Power Input	Diameter	Discharge Size
3 SQF-2	Helical Rotor	120 m	0.65 m³/h	1400 W	3"	1¼"
3 SQF-3	Helical Rotor	200 m	0.63 m³/h	1400 W	3"	1¼"
6 SQF-2	Helical Rotor	120 m	1.3 m³/h	1400 W	3"	1¼"
6 SQF-3	Helical Rotor	250 m	1.3 m³/h	1400 W	3"	1¼"
11 SQF-2	Helical Rotor	250 m	1.3 m³/h	1400 W	3"	1¼"
16 SQF-10	Centrifugal	70 m	3.7 m³/h	1400 W	4"	1¼"
25 SQF-3	Centrifugal	45 m	40 GPM	120-760 W	4"	1½"
25 SQF-7	Centrifugal	90 m	39 GPM	130-1400 W	4"	1½"
40 SQF-3	Centrifugal	45 m	38 GPM	200-800 W	4"	2"
40 SQF-5	Centrifugal	90 m	70 GPM	300-1400 W	4"	2"
60 SQF-3	Centrifugal	45 m	85 GPM	20-1400 W	4"	2"

 

Optional Control Units:

To enhance the functionality and monitoring capabilities of the SQFlex pumps, Grundfos offers several control units:

• CU200 Interface Box: This unit communicates with the pump to monitor operating conditions, displaying diagnostics, faults, and operational status. It also allows for the integration of a water level switch to control pump operation based on tank levels.

• IO50 Control Box: Equipped with cable terminations and a manual on/off switch, the IO50 facilitates safe disconnection of the solar array during maintenance procedures.

• IO101 AC Interface Box: Designed for systems utilizing AC backup, this interface box automatically switches between solar power and AC sources such as generators or the utility grid, ensuring uninterrupted pump operation.

Installation and Maintenance:

The SQFlex pumps are designed for straightforward installation and minimal maintenance. Their compatibility with various power sources simplifies integration into existing systems. Regular inspections and periodic cleaning of components, such as solar panels and intake screens, will help maintain optimal performance.

Applications:

The versatility of the SQFlex pumps makes them suitable for a wide range of applications, including:

• Agricultural Irrigation: Providing efficient water delivery to crops in remote locations.

• Livestock Watering: Ensuring a reliable water supply for livestock in off-grid areas.

• Remote Community Water Supply: Delivering potable water to villages and small communities without access to conventional power sources.

• Environmental Conservation: Supporting water management in wildlife reserves and conservation areas.

By harnessing renewable energy sources, the Grundfos SQFlex solar pumps offer an eco-friendly and cost-effective solution for diverse water pumping needs, ensuring sustainability and reliability in various applications.