Grundfos SQ 2-70N 3" Borehole Submersible Pump

A reliable bore pump starts with the right balance between performance, simplicity, and long-term durability.

The Grundfos SQ 2-70N is a 3" borehole submersible pump designed for clean water supply where fixed-speed operation and external pressure control are preferred.

With a compact 3" diameter and integrated 2-wire motor, it suits narrow bores and straightforward domestic installations.

What this is used for

The Grundfos SQ 2-70N is used in clean water bore systems where dependable water supply is required.

• Domestic bore water supply
• Garden and irrigation systems
• Pressure systems using external controllers or pressure tanks
• Installations with limited bore diameter

What to check before you buy

• Bore diameter: Designed for 3" (minimum) boreholes.
• Required flow and head: Confirm the pump curve suits your bore depth and system demand.
• Power supply: 240 V single phase, 2-wire motor.
• Pressure control: This is a fixed-speed pump. Pressure is managed via an external controller or pressure tank.
• Water quality: Designed for clean water. Filtration may be required depending on bore conditions.

Important system note

Correct pump sizing and external pressure control are critical for reliable operation and service life in fixed-speed bore systems.

Key features

• 3" submersible borehole pump for narrow bores
• Fixed-speed operation with external pressure control
• Integrated 2-wire motor for simple electrical connection
• Suitable for domestic water supply and irrigation
• Proven Grundfos reliability

Specifications

• Brand: Grundfos
• Series: SQ
• Model: SQ 2-70N
• Pump diameter: 3"
• Motor power: 1.15 kW
• Power supply: 240 V single phase
• Motor type: 2-wire submersible motor
• Pump type: Fixed-speed borehole submersible pump

Compatibility and related parts

This pump is typically installed as part of a complete bore water system.

• Pressure controllers or pressure tanks
• Non-return valves and isolation valves
• Bore cable and termination kits
• Primary filtration for bore water protection

Need a hand choosing?

If you’re replacing an existing bore pump or selecting one for a new bore, send through your bore depth, water level, and required flow. We’ll help confirm whether the SQ 2-70N is the right fit for your system.