4HS MultiPower

pumps powered by
renewable energy sources,
is a new range from
4HS pumps with built-in inverter

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Built-in inverter module

All the advantages
of built-in electronics

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Built-in inverter module

All the advantages
of built-in electronics

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4HS MultiPower pump
can be installed with
CM MultiPower control module
or without it, thus becoming a plug&pump system

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MPPT:
always the maximum
power available

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MPPT:
always the maximum
power available

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Centrifugal
pump

Built-in
inverter
module (MINT)

The helical
rotor pump

Motor

Centrifugal
pump

Built-in
inverter
module (MINT)

The helical
rotor pump

Motor

Centrifugal pump

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Built-in inverter
module (MINT)

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The helical rotor pump

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Motor

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Nastec Solar Calculator

The ultimate tool
for sizing any solar
pumping system

Nastec Solar Calculator

The ultimate tool
for sizing any solar
pumping system

4″ submersible pumps powered by renewable energy sources.

4HS MultiPower pumps can be powered by AC or DC with a wide range of operating voltage (90 – 265 VAC / 90 – 400 VDC). This means that 4HS MP pumps can be connected to solar panels, batteries, wind turbine and a diesel generator.

A special software algorithm allows for adjusting the hydraulic performance to each source and to the available power while maximising the amount of water pumped.

All the advantages of built-in electronics.

The built-in electronics inside the motor avoid the use of shielded cables and output filters, and it is the ideal solution for any application in remote locations without surveillance and climatically adverse.

In fact, in the traditional solutions, the solar inverter is placed above ground and, being exposed to the weather, could suffer of:

  • Overheating
  • Water infiltration
  • Thermal shock
  • Damage by animals or people

The built-in electronics are directly cooled by the water flow; the operating temperature of the electronic components is so low as to ensure considerably longer life than a surface inverter affected by high temperatures, humidity, dust and sunlight.

All the advantages of built-in electronics.

The built-in electronics inside the motor avoid the use of shielded cables and output filters, and it is the ideal solution for any application in remote locations without surveillance and climatically adverse.

In fact, in the traditional solutions, the solar inverter is placed above ground and, being exposed to the weather, could suffer of:

  • Overheating
  • Water infiltration
  • Thermal shock
  • Damage by animals or people

The built-in electronics are directly cooled by the water flow; the operating temperature of the electronic components is so low as to ensure considerably longer life than a surface inverter affected by high temperatures, humidity, dust and sunlight.

CM MultiPower control module.

If the CM MultiPower control module is not used, signal cables can be used to control pump start and stop, connecting a float switch, for example. All the protections against overload, surges and dry running are integrated into the on-board inverter.

If the signal cables are connected to the CM MultiPower control module, it is possible to:

  • Control the electric parameters (current, power, voltage).
  • Record and store all the alarms related to the working hours.
  • Connect a pressure or a flow sensor to monitor the pump’s performance.
  • Connect a pressure or float switch.
  • Provide an alarm digital output for remote control.

Use of auxiliary genset.

If solar energy is absent or insufficient, it is possible to power the pump with an auxiliary genset to achieve the desired pump performance.

An AC/DC selector is used to change the power source.

Integrated on-board protection.

Protection against overload, surges and dry running are integrated into the pump’s electronic circuit.

Electronic protection against dry running avoids the use of probes.

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.

Centrifugal pump.

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

Built-in inverter module (MINT).

  • Completely resin-filled.
  • Removable power cable.

The helical rotor pump.

4HS “H” 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 is lubricated by the pumped water.

The flow rate is directly proportional to the pump speed while the pressure 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 solar irradiation.

In addition, the helical rotor pumps feature higher hydraulic efficiency than centrifugal pumps having the same flow. This saves in the number of solar panels necessary for the application.

Motor.

  • Permanet magnet motor.
  • Resined and incapsulated stator made of AISI 304 stainless steel.
  • Water-cooled rotor.
  • Kingsbury thrust bearing.

Permanent magnet motor.

4HS MP pumps are equipped with a permanent magnet motor.

The rotor uses Neodymium magnets coated with thin layers of copper and nickel to ensure greater reliability and durability in addition to superior magnetic performance.

High motor efficiency and starting torque make it possible for the pump to run even in
low-light conditions.

The integrated inverter module converts DC energy into useful electrical energy to drive the motor efficiently and, at the same time, adjusts the pump speed according to the available irradiation, maximising the power extracted (MPPT).

Overload, overheating, dry-run protections are integrated on board.

Centrifugal pump.

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

Built-in inverter module (MINT).

  • Completely resin-filled.
  • Removable power cable.

The helical rotor pump.

4HS “H” 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 is lubricated by the pumped water.

The flow rate is directly proportional to the pump speed while the pressure 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 solar irradiation.

In addition, the helical rotor pumps feature higher hydraulic efficiency than centrifugal pumps having the same flow. This saves in the number of solar panels necessary for the application.

Motor.

  • Permanet magnet motor.
  • Resined and incapsulated stator made of AISI 304 stainless steel.
  • Water-cooled rotor.
  • Kingsbury thrust bearing.

Permanent magnet motor.

4HS MP pumps are equipped with a permanent magnet motor.

The rotor uses Neodymium magnets coated with thin layers of copper and nickel to ensure greater reliability and durability in addition to superior magnetic performance.

High motor efficiency and starting torque make it possible for the pump to run even in
low-light conditions.

The integrated inverter module converts DC energy into useful electrical energy to drive the motor efficiently and, at the same time, adjusts the pump speed according to the available irradiation, maximising the power extracted (MPPT).

Overload, overheating, dry-run protections are integrated on board.

Centrifugal pump.

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

Built-in inverter module (MINT).

  • Completely resin-filled.
  • Removable power cable.

The helical rotor pump.

4HS “H” 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 is lubricated by the pumped water.

The flow rate is directly proportional to the pump speed while the pressure 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 solar irradiation.

In addition, the helical rotor pumps feature higher hydraulic efficiency than centrifugal pumps having the same flow. This saves in the number of solar panels necessary for the application.

Motor.

  • Permanet magnet motor.
  • Resined and incapsulated stator made of AISI 304 stainless steel.
  • Water-cooled rotor.
  • Kingsbury thrust bearing.

Permanent magnet motor.

4HS MP pumps are equipped with a permanent magnet motor.

The rotor uses Neodymium magnets coated with thin layers of copper and nickel to ensure greater reliability and durability in addition to superior magnetic performance.

High motor efficiency and starting torque make it possible for the pump to run even in
low-light conditions.

The integrated inverter module converts DC energy into useful electrical energy to drive the motor efficiently and, at the same time, adjusts the pump speed according to the available irradiation, maximising the power extracted (MPPT).

Overload, overheating, dry-run protections are integrated on board.