Doyin 4SDM3/13 AC Borehole Pump 1HP 93m Head

DOYIN 4SDM3/13 1HP Single-Phase AC Submersible Pump — 1.25" Outlet

Long Description:

The DOYIN 4SDM3/13 is a dependable 1.0HP single-phase AC submersible pump with an ordinary impeller, built for domestic boreholes and wells. With a 1.25-inch outlet and a flow rate of 4.8m³/h (4,800 litres per hour), it delivers solid performance for a recommended depth of up to 77 metres, with a maximum head of 93M — a step up from the smaller domestic models in the range.

Running on standard single-phase AC power, the 4SDM3/13 is a practical option for properties without three-phase supply — common across many residential sites in coastal Kenya. It fits domestic boreholes, household water points, and general home water supply needs in Mombasa, Malindi, Diani, Kilifi, and Lamu.

As a single-phase AC pump, the 4SDM3/13 requires a matching AC controller (DOYIN's DYM-S03 unit) sized to its 1.0HP rating for correct, protected operation. It is not solar-compatible in this configuration and is best suited to properties with stable single-phase grid or generator power.

CoastalSolar Africa supplies, sizes, and installs the 4SDM3/13 pump, including the correctly matched DYM-S03 controller, across the coastal region.

Specifications:

• Model: 4SDM3/13
• Power: 1.0HP, single-phase AC
• Impeller: Ordinary
• Outlet size: 1.25 inches
• Max flow: 4.8m³/h (4,800L/h)
• Max head: 93M
• Recommended depth: 0–77M
• Power source: Single-phase AC (grid or generator)
• Required controller: DOYIN DYM-S03 AC controller
• Application: Domestic boreholes, household water points, home water supply

FAQs:

Does this pump run on solar power?
No — the 4SDM3/13 is a single-phase AC pump requiring standard grid or generator power. For solar-powered options, ask about DOYIN's DC or hybrid AD pump range.

What controller does this pump need?
It requires the DOYIN DYM-S03 AC controller, specifically matched to this model — CoastalSolar Africa can supply and fit this correctly.

How does this compare to the 4SDM3/18 (1.5HP)?
Both use the same DYM-S03 controller, but the 4SDM3/18 reaches greater depth (109M vs 77M recommended) at a higher 1.5HP rating — the 4SDM3/13 is the more economical choice where 77M depth is sufficient.

Do you install this pump in Kilifi and Malindi?
Yes, CoastalSolar Africa supplies and installs the 4SDM3/13 pump with its matched controller across Mombasa, Malindi, Diani, Kilifi, Lamu, and the wider coastal region.