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Grundfos SQFlex 1.2-3 Solar Pump | 3" | 120 m | 2.4 m³/h | 1.4 kW

Modelo: SQFlex 1,2-3

Sku: GRUNBOM002
Vendor: Grundfos

€2.117,14 EUR

€1.693,71 EUR

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Grundfos SQFlex 1.2-3 Solar Pump for deep wells: high-lift helical rotor, up to 120 m, 2.4 m³/h, electronics with MPPT and IP68. Operates with solar DC (30–300 V) or AC (90–240 V).

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Specifications

Product Description

The Grundfos SQFlex 1.2-3 Solar Pump is a 3" submersible pump with a helical rotor designed to lift water to great heights with moderate flow rates. It combines reliability and efficiency thanks to its integrated electronics with MPPT tracking, offering direct operation with photovoltaic energy or connection to the grid/generator. With a lift of up to 120 m and a flow rate of 2.4 m³/h, it is ideal for deep wells with continuous and stable supply demands.

Main Features

High-pressure helical (screw) rotor: excellent performance at great heights with low/medium flow rates.
Flexible power range: DC 30–300 V and AC 90–240 V, with integrated electronics and MPPT.
Input power P1: 1.4 kW; nominal current 8.4 A; speed 3,600 rpm.
Construction in AISI 304 stainless steel, integrated non-return valve, and protection rating IP68.
Diameter 3" (Ø approx. 74 mm) and Rp 1 1/4" outlet; for minimum boreholes of 76 mm.
Integrated protections: dry running, over/under voltage, and thermal overload.

Advantages or Benefits

Energy autonomy: operates directly with solar panels, reducing fuel and maintenance costs.
Simplified installation: no external inverters; integrated electronics and control for reliable start-up.
High durability: stainless materials and sealed design for continuous use in demanding environments.
Energy flexibility: accepts DC from panels and AC from grid or generator, allowing hybrid or backup operation.
Stable supply: helical curve that maintains pressure at great heights, ideal for elevated tanks.

Purpose or Applications

Recommended for supply in off-grid homes, livestock and localized irrigation, filling elevated tanks, compact water treatment plants, and small rural networks. Its high-lift performance makes it ideal for deep wells with variable dynamic levels and lower instantaneous demand.

Technical Specifications

Model	SQF 1.2-3
Pump diameter	3" (Ø approx. 74 mm)
Maximum head	120 m
Maximum flow rate	2.4 m³/h
Hydraulic type	Helical rotor (screw)
Input power (P1)	1.4 kW
DC supply	30–300 Vdc (integrated MPPT)
AC supply	1× 90–240 Vac
Nominal current	8.4 A
Speed	3,600 rpm
Protection rating	IP68
Insulation class	F
Hydraulic outlet	Rp 1 1/4
Minimum well diameter	76 mm
Materials	AISI 304 stainless steel (body, rotor, impellers)
Non-return valve	Integrated
Cable length	2 m
Liquid temperature	≤ 40 °C
Max. ambient pressure	15 bar
Weight	≈ 9.8 kg

Compatibilities

Direct operation with photovoltaic modules within the range of 30–300 Vdc and with single-phase grid/generator 90–240 Vac. Compatible accessories and peripherals (not included): Grundfos CU200 controllers, IO101/IO102 interfaces, level probes for tank/well, DC/AC protections, and residual current devices suitable for the installation.

The Grundfos SQFlex 1.2-3 Solar Pump provides a robust and efficient solution for solar pumping in deep wells, maximizing energy utilization and ensuring reliable supply with low maintenance.