Helical rotor pump.
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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.
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During operation, the rotor moves on the rubber surface and is lubricated by the pumped water.
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The flow rate is directly proportional to the pump speed while the pressure supplied is kept almost constant.
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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.
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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.
Built-in inverter module (MINT).
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Completely resin-filled.
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Removable power cable.
Centrifugal pump.
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Impellers and diffusers in AISI 304 stainless steel.
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Built-in no-return valve.
Motor.
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High efficiency permanent magnet motor.
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Resined and encapsulated stator made of AISI 304stainless steel.
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Water-cooled rotor.
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Kingsbury thrust bearing.
