Submersible Well Bore Pump

Description

These are high quality submersible solar pumps that can transfer water over great distances or up hills. Power directly from solar panels, these pumps offer a cost effective solution for remote water distribution. Suitable for off grid living, use with solar panels and/or battery banks, the quality brushless motor will perform for a range of power inputs. Great for the supply of drinking water to homes and to cattle in fields. With a full range of options, these units have a place on every farm.

Solar well bore hole pump

• Suitable for direct connection to solar panels without the need for a battery
• High discharge pressures and flow rates
• Brushless DC motors ensure reliable operation and long service life
• Wide voltage input range makes powering directly from solar panels possible
• Small diameters make retrofitting to narrow wells possible
• Stainless steel components for long operating life
• Overload protection

Low Voltage DC Water Pump with Brush-less Motor

Low voltage brushless motor water pumps that are ideal for livestock watering or the supply of domestic drinking water. These pumps are designed for direct connect to your solar panels without the need for a expensive battery. When the sun is shining the pump will automatically start thanks to the inbuilt intelligent pump controller.

These pumps are popular for retrofitting to existing water bores and wells as some models feature a small diameter, only 76mm, which fits most configurations.

These are a submersible pump design which means these rely on their submersion in water to keep the motor cool and operating efficiently. They are not suitable for out of water continuous operation.

Inbuilt Smart controller allows direct connection to solar panels

The pumps feature a internal MPPT controller to optimise there performance when connected directly to solar panels. The controller includes a soft start function to prevent pump cycling in low light conditions. Included is under voltage and over voltage protection. If the pump is to shutdown in a protection state, it will automatically restart when the voltage or conditions are right again.

If you have remote paddocks and don't want the hassle of a battery bank or the maintenance and user input that comes with a petrol or diesel engine driven pump, connect these pumps directly to solar panels and let them operate automatically when the sun is shining.

The MPPT controller will accept a range of voltage inputs, however the best pump performance will be achieved as the input voltage approaches the design voltage value as detailed in the specifications table below.

Pump Construction

These are quality built pumps featuring mostly stainless steel construction on the outer wetted surfaces. The pumps impeller is stainless steel and designed to last, beware of cheap knockoffs running plastic impellers. Quality internal controllers are used to ensure these pumps run effectively and efficiently without the need of a battery in the design. Each pump is factory leak and performance tested prior to supply.

Save Money with Solar

Pumps can be high energy users and cost a lot to run. Harnessing the energy from the sun means you can pump water without a grid connection.

Sizing your solar panels

As a guide, you will need 1.5-2 times the pumps motor rating to power the pump at the rated flow conditions.

Your solar panels voltage should target the pumps design voltage value. The MPPT controller internal to the pump will allow the pump to run at a range of input voltages however maximum performance will be achieve at the design voltage condition.

250W Pump

For a 250W motor pump, users should consider 375-500W of solar panels.

There are a range of methods to power this pump directly from solar panels;

Option 1 - 400W (2 x 200W panels)

Wire 2 x 18V, 200W panels in series to give 400W of power at 36V.

Option 2 - 600W (3 x 200W panels)

Wire 3 x 18V, 200W panels in parallel to give 600W of power at 18V. Or wire them in series to give 600W at 55V.

600W Pump

For a pump with a 600W motor, users should plan for 900-1,200W of panels.

This model can accept input voltages ranged 45-150V. So powering directly from solar panels can be achieved via;

Option 1 - 1,200W (6 x 200W panels)

Wire 3 x 18v, 200W panels in series to give 600W of power at 54V. Repeat this wiring on a second set of panels. Now wire the 2 banks in parallel to provide 1200W of power at 54V directly to the pump.

Option 2 - 1,000W (5 x 200w panels)

Wire 5 x 18v, 200W panels in series to give 1,000W of power at 90V. Connect directly to the pump.

High Discharge Pressure and Flow Rates

The pumps come in a range of sizes and designs for all user requirements.

To convert max. head into pressure, users should multiply by gravity (9.8) and water density (1000kg/m3) to get the pressure in Pa, divide by 1000 for kPa. For example, for a maximum head of 70m, users should expect ~686 kPa discharge pressure or 99 psi.

Accessories for Solar Water Pump Systems

We offer a range of popular accessories that can be incorporated into pump system designs.

• Mechanical pressure switches
• Tank Float Switches
• Water discharge hose
• Deep Well Level Sensor

Common Specifications