DOYIN 4SP10-26 7.5HP 3-Phase Stainless Steel Submersible Pump — 2" Outlet

The DOYIN 4SP10-26 is a heavy-duty 7.5HP three-phase AC submersible pump built with a stainless steel impeller for durability and corrosion resistance in demanding borehole conditions. With a 2-inch outlet and a maximum flow of 14.4m³/h (14,400 litres per hour), it's designed for high-volume water needs, delivering from a recommended depth of up to 142 metres (156M maximum head).

This pump suits large agricultural irrigation schemes, commercial water supply, and community boreholes requiring both high flow and strong lifting capacity. The stainless steel impeller offers added protection against mineral content and mild salinity in borehole water, making it a solid option for coastal properties in Mombasa, Malindi, Diani, Kilifi, and Lamu, as well as inland agricultural operations with access to three-phase power.

As a three-phase AC pump, the 4SP10-26 requires a three-phase power supply and a matching three-phase AC controller sized to its 7.5HP rating for correct, protected operation. It is not solar-compatible in this configuration and is best suited to properties with stable grid or generator-backed three-phase electricity.

CoastalSolar Africa supplies, sizes, and installs the 4SP10-26 pump, including the correctly rated 3-phase controller, across the coastal region and for larger agricultural clients further inland.

Specifications:

• Model: 4SP10-26
• Power: 7.5HP, three-phase AC
• Impeller: Stainless steel
• Outlet size: 2 inches
• Max flow: 14.4m³/h (14,400L/h)
• Max head: 156M
• Recommended depth: 0–142M
• Power source: 3-phase AC (grid or generator)
• Required controller: Matching 3-phase AC controller, 7.5HP/5.5KW rating
• Application: Large agricultural irrigation, commercial water supply, high-volume community boreholes

FAQs:

Does this pump run on solar power?
No — the 4SP10-26 is a three-phase AC pump requiring a stable 3-phase electricity supply. For solar-powered options at similar flow rates, ask about DOYIN's DC or hybrid AD pump range.

What controller does this pump need?
It requires a matching 3-phase AC controller rated for 7.5HP/5.5KW — CoastalSolar Africa can supply and correctly match this.

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.

What's the maximum depth this pump can handle?
It's rated for a recommended depth of 0–142M, with a maximum head of 156M.

How does this compare to the 4SP10-33 (10HP)?
Both share the same 14,400L/h max flow and 2" outlet, but the 4SP10-33 delivers greater lifting capacity (198M max head vs 156M) at a higher 10HP rating — the 4SP10-26 is the more economical choice where 142M depth is sufficient.

Do you install 3-phase pumps in Kilifi and Malindi?
Yes, CoastalSolar Africa supplies and installs 3-phase submersible pumps like the 4SP10-26 across Mombasa, Malindi, Diani, Kilifi, Lamu, and inland agricultural areas with 3-phase power access.