submersible pumps
THE MOST COMPACT AND RELIABLE SOLUTION FOR SOLAR PUMPING APPLICATIONS
Durable and reliable, this 4-inch pump suits a wide range of rural applications, including domestic use, small irrigation, and livestock watering.
Perfect to pump from
Rivers
Bores
Dams
Product Features
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NERA pumps are equipped with a helical rotor that moves within a double helix rubber stator. The rotor is made of AISI 304 stainless steel and coated with a hard chrome surface.
During operation, the rotor moves on the rubber surface and it’s lubricated by the pumped water. The flow rate is directly proportional to pump speed while the pres-sure supplied is kept almost constant.
In this way, unlike a centrifugal pump, the helical rotor pump provides high head even at low rpm, ensuring water on surface even with very low available power or low irradiation. In addition, the helical rotor pumps feature higher hydraulic efficiency than centrifugal pumps of same flow.
This saves in the number of PV panels necessary for the application.
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Impellers and diffusers in AISI 304 stainless steel.
Built-in no-return valve.
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High-efficiency encapsulated inverter.
MPPT for maximum flow in all weather conditions.
Overload, overheating and dry-run protected.
Removable power cable.
Water level sensor.
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High efficiency permanent magnet motor.
NEMA standard 4” fitting.
Resined and encapsulated stator made of AISI 304 stainless steel.
Water-cooled rotor.
Kingsbury thrust bearing.
MPPT: ALWAYS THE MAXIMUM POWER AVAILABLE
Based on the varying conditions of solar irradiation and temperature, MPPT (Maximum Power Point Tracking) maximises the electrical power drawn from the panels and therefore the amount of water pumped. The greater the solar irradiation the faster the pump's rotation speed, and consequently water flow increases.
When solar irradiation decreases (due to clouds or the different times of day), the pump reduces frequency and therefore the flow, but it continues to provide water until the irradiation fal-Is below a minimum level necessary to ensure operation.
Perfect for bores, dams and rivers.
Read how the NERA submersible pump can be used to pump water from bores, dams and rivers.
Want the complete package?
For the complete package systems, including solar panels and all necessary components for installation and operation.
Technical Specifications
