Wilo

Wilo Wetend SPU4-01 Submersible Borehole Pump (Wet End)

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The Wilo Wetend SPU4-01 is a 4" multistage submersible borehole pump end from Wilo (Actun FIRST-SPU4 range, formerly branded Xiro SPU). It sits down inside your borehole and lifts clean water reliably to the surface — corrosion-resistant construction throughout, with a stainless steel 1.4301 hydraulic housing, Noryl/PPE impellers, and an integrated non-return valve.

This is the wet end (pump end) only — it couples to a matching 4" submersible motor (sold separately) to form a complete borehole pump set.

How to choose your model

Every Wilo Wetend SPU4-01 delivers up to about 1,500 litres per hour (1.5 m³/h). More stages means more head — pick the model that matches how deep your water sits:

Model Stages Motor Max head
SPU4-01-10 10 0.37 kW 66.1 m
SPU4-01-13 13 0.37 kW 86 m
SPU4-01-19 19 0.55 kW 125.7 m
SPU4-01-26 26 0.75 kW 171.9 m
SPU4-01-38 38 1.1 kW 251.3 m

All Wilo Wetend SPU4-01 models share a 32 mm (1¼") discharge and abrasion-resistant impellers. Head figures are shut-off (zero-flow) maximums; actual delivery drops as flow rises, so ask us for the full performance curve if you're sizing to a specific duty point.

Not sure which model fits your borehole? Use our Help Me Choose guide, or get in touch and we'll size it with you.

Max Head

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Flow Rate

1500.0 L/h

Motor Power

—

Supply

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Borehole

Choose your model
Free delivery over R5,000 Manufacturer warranty

Technical Specifications

Max Head
66.1 – 251.3 m
Flow Rate
1500.0 L/h
Motor Power
0.37 – 1.1 kW
Pipe Size
32.0 mm
Application
Borehole

Head and motor power vary by model. Pick a model above to see its exact figures.

Frequently Asked Questions

How deep can this pump be installed?

Check the Max Head figure for the model you choose. That is the maximum height the pump can lift water, including the depth it sits at plus the rise to your tank.

Do I need a control box?

Most borehole pumps need a matching control box or starter. Ask our team if you are unsure which one suits your pump.

What is the delivery time?

Stocked items ship same or next business day. Larger pumps are often special order, so get in touch for a lead time.

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