DOYIN 4SPS7-3000W (4.0HP) AD Hybrid Stainless Steel Submersible Pump — 1.5" Outlet

The DOYIN 4SPS7-3000W is a durable 4.0HP AD (hybrid) submersible pump with a stainless steel impeller, capable of running on solar power or standard AC electricity. With a 1.5-inch outlet and a flow rate of 7.0m³/h (7,000 litres per hour), it delivers strong performance from a recommended depth of up to 161 metres, with a maximum head of 270M.

The stainless steel impeller offers added corrosion resistance, making this a solid choice for coastal boreholes in Mombasa, Malindi, Diani, Kilifi, and Lamu, where water can carry higher mineral content or mild salinity. As an AD hybrid model, it can run on a solar array during daylight hours (DC 280–400V) and switch to single-phase AC power (220–240V) when solar output drops, giving continuity of water supply during cloudy periods or higher demand.

This pump suits mid-to-large domestic boreholes, farm irrigation, and community water points needing dependable output regardless of solar conditions. The solar configuration pairs with a 7 x 600W panel array to reach the correct operating voltage.

CoastalSolar Africa supplies, sizes, and installs the 4SPS7-3000W pump and its solar array or AC power setup across the coastal region.

Specifications:

• Model: 4SPS7-3000W
• Power: 3000W (4.0HP), AD hybrid (Solar DC + AC)
• Impeller: Stainless steel
• Outlet size: 1.5 inches
• Max flow: 7.0m³/h (7,000L/h)
• Max head: 270M
• Recommended depth: 0–161M
• Voltage: DC 280–400V / AC 220–240V
• Ideal power / panel requirement: 7 x 600W solar panels (~4.2kW array)
• Power source: Hybrid — solar DC or AC grid/generator backup
• Application: Domestic boreholes, farm irrigation, community water points

FAQs:

How many solar panels does this pump need?
It requires 7 x 600W panels, roughly 4.2kW total, to reach its 280–400V DC operating range.

Can this pump run on AC power only, without solar?
Yes, its AD hybrid design allows full operation on single-phase AC power alone (220–240V) if a solar array isn't installed or available.

Is the stainless steel impeller worth it for coastal boreholes?
Yes, it offers better resistance to mineral content and mild salinity often found in coastal borehole water compared to ordinary impeller pumps.

How does this compare to the 4SPS7-2200W (3.0HP)?
Both share the same 1.5" outlet, but the 3000W model has a higher power rating (4HP vs 3HP) and reaches greater depth (161M vs 134M recommended), using more panels (7x600W vs 6x550W).

Do you supply and install this pump in Kilifi and Malindi?
Yes, CoastalSolar Africa supplies and installs the 4SPS7-3000W pump and its solar array across Mombasa, Malindi, Diani, Kilifi, Lamu, and the wider coastal region.

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