What is the Grundfos collection in solar pumping?

The Grundfos collection includes 3” and 4” solar submersible pumps and their controllers for clean water applications. These are professional solutions for extracting water from wells or boreholes and delivering it to tanks, irrigation, or consumption networks, maximizing performance with photovoltaic energy and minimizing maintenance.

Advantages and limitations

• High-efficiency hydraulics and mechanical robustness for continuous operation.
• Controller ecosystem for level management, protections, and signaling.
• Wide hydraulic range (flow rates and heads) to adapt to different depths and demands.
• Limitations: check water quality (sand/solids), borehole diameter, and available PV generator power.

Applications

• Supply of homes and farms with elevated tanks.
• Agricultural irrigation (drip/sprinkler) and livestock.
• Transfer to ponds, tank filling, and pressurization with auxiliary equipment.

How to choose your Grundfos pump

• Total dynamic head: sum of water column, friction losses, and useful height to the tank.
• Target flow rate: required m³/h according to daily consumption or irrigation demand.
• Borehole diameter: 3” or 4” models.
• Solar power supply: size PV power and cabling; confirm controller and level sensor compatibility.
• Water quality: install a filter/cleaner if there is sand or solids.

Indicative specifications (depending on model)

Best Practices

• Install level probes in well and tank to prevent dry running and overfilling.
• Size PV strings with thermal margin and protections in DC and AC according to regulations.
• Use a check valve and piping suitable for flow/head to reduce losses.
• Plan preventive maintenance and filter cleaning.

Related Collections

• Solar Submersible Pumps
• Pump Accessories
• Spare Parts for Pumps
• Submersible Solar Pump Kits

Grundfos offers reliable and efficient pumping for demanding solar projects, with a wide hydraulic range and professional control to ensure continuous water supply.