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Grundfos SQE Constant Pressure System

Grundfos SQE Constant Pressure System

The SQE 3" pump and the CU301 control unit is a complete water pressure system. 

The system contains everything you'll need, it's very easy to install and virtually maintenance free. The system offers constant water pressure despite varying demands. 

What happens if the Borehole runs out of water?
No problem, the SQ's Dry Run Protector (DRP) will stop the pump instantly in the case of lack of water in the borehole thus preventing a burnout of the motor.

The intelligent control unit is capable of monitoring and displaying the systems performance continuously whilst also providing DRP and other features that guarantee a long lifetime of the pump. 

The Complete Pressure System includes: Specifications
►SQE pump ►Stainless steel casing pump
►CU301 control unit ►Maximum liquid temperature: 35°C
►Pressure sensor ►IP68 class F insulation
►Expansion vessel  


Suitable applications include: domestic water supply, irrigation. 

Please note: some of the models on the datasheet have been discontinued. Please call us on 01777 871100 if you are unsure which system matches your requirements. 

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Delivery Costs


Please note: SQE systems are built to order so the Express and Premium delivery options are unavailable. Please allow 3-5 working days for delivery. This may be longer if you are in Zones 2 & 3. 

Delivery Map


Zone 1 England, Wales & Southern Scotland Under £100 Over £100
Standard 2/3 working days


Express Next working day


Premium Next working day (before 13.00)


Zone 2 Scottish Highlands & Islands, Northern Ireland, Isle of Man, Scilly & Channel Isles Under £100 Over £100
Standard 2/3 working days


Zone 3 Republic of Ireland Under £100 Over £100
Standard 3/5 working days




Exporting Internationally

We offer a first class worldwide export service. Please contact us here for a price.
Model Voltage Power Outlet Max. Flow Max. Head SKU Price ex-VAT Qty
SQE 2-55 (+40m Cable) 230V 0.70 kW 1-1/4" 57 l/min 67 m 3913-200 £1,464.00
SQE 2-85 (+60m Cable) 230V 1.15 kW 1-1/4" 57 l/min 109 m 3913-201 £1,813.60
SQE 3-65 (+40m Cable) 230V 1.15 kW 1-1/4" 73 l/min 92 m 3913-202 £1,628.00
SQE 5-70 (+40m Cable) 230V 1.85 kW 1-1/2" 125 l/min 107 m 3913-203 £1,772.80
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Whisper Pumps Ltd, Leen Court, Boughton, Newark, Nottinghamshire, NG22 9ZD