4HS 4” — Solar Pumptec | Water Pumping Specialists

submersible pumps

4” SUBMERSIBLE PUMPS POWERED BY RENEWABLE ENERGY SOURCES

Perfect to pump from

Dams

Bores

Rivers

Optimised for deeper installations or higher flow requirements. Great for farms needing dependable water delivery across variable terrain.

Product Brochure

Product Features

- 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.

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

- Completely resin-filled.
- Removable power cable.

- Permanent magnet motor.
- Standard NEMA 4” connection.
- Resined and incapsulated 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.