NERA

The most compact
and reliable solution
for solar pumping applications

NERA solar pumps have been
developed to meet the needs of low-power
and low-cost pumping systems
without sacrificing quality, reliability and performance.

NERA

The most compact
and reliable solution
for solar pumping applications

NERA solar pumps have been developed to meet the needs of low-power and low-cost pumping systems without sacrificing quality, reliability and performance.

Centrifugal pump

Encapsulated electronics

Helical rotor pump

Motor

Centrifugal pump

Encapsulated electronics

Helical rotor pump

Motor

Centrifugal pump

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Encapsulated electronics

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Helical rotor pump

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Motor

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Easy connection
to pv panels and to a float

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Easy connection
to pv panels and to a float

Read more

MPPT:
always the maximum
power available

Read more

MPPT:
always the maximum
power available

Read more

Nastec Solar Calculator

The ultimate tool for sizing
any solar pumping system

Nastec Solar Calculator

The ultimate tool for sizing
any solar pumping system

Centrifugal pump.

  • Impellers and diffusers in AISI 304 stainless steel.
  • Built-in no-return valve.

Encapsulated electronics.

  • High-efficiency encapsulated inverter.
  • MPPT for maximum flow in all weather conditions.
  • Overload, overheating and dry-run protected.
  • Removable power cable.
  • Water level sensor.
NERA encapsulated electronic

Helical rotor pump.

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.

Motor.

  • High efficiency permanent magnet motor.
  • Resined and encapsulated stator made of AISI 304stainless steel.
  • Water-cooled rotor.
  • Kingsbury thrust bearing.

Centrifugal pump.

  • Impellers and diffusers in AISI 304 stainless steel.
  • Built-in no-return valve.

Encapsulated electronics.

  • High-efficiency encapsulated inverter.
  • MPPT for maximum flow in all weather conditions.
  • Overload, overheating and dry-run protected.
  • Removable power cable.
  • Water level sensor.
NERA encapsulated electronic

Helical rotor pump.

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.

Motor.

  • High efficiency permanent magnet motor.
  • Resined and encapsulated stator made of AISI 304stainless steel.
  • Water-cooled rotor.
  • Kingsbury thrust bearing.

Centrifugal pump.

  • Impellers and diffusers in AISI 304 stainless steel.
  • Built-in no-return valve.

Encapsulated electronics.

  • High-efficiency encapsulated inverter.
  • MPPT for maximum flow in all weather conditions.
  • Overload, overheating and dry-run protected.
  • Removable power cable.
  • Water level sensor.
NERA encapsulated electronic

Helical rotor pump.

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.

Motor.

  • High efficiency permanent magnet motor.
  • Resined and encapsulated stator made of AISI 304stainless steel.
  • Water-cooled rotor.
  • Kingsbury thrust bearing.

STOP MODULE

To connect NERA to the solar system, the STOP MODULE device is available as an accessory. It is equipped with:

  • MC4 connectors for fast and easy panels connection.
  • Button for pump start and stop.
  • Connection for float or pressure switch.
  • Surge protection.
Stop module Nastec

STOP MODULE

To connect NERA to the solar system, the STOP MODULE device is available as an accessory. It is equipped with:

  • MC4 connectors for fast and easy panels connection.
  • Button for pump start and stop.
  • Connection for float or pressure switch.
  • Surge protection.
Stop module Nastec

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 irradation falls below a minimum level necessary to ensure operation.

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 irradation falls below a minimum level necessary to ensure operation.