4kW 6.6m³/h 271m Doyin 4SP5-44 5.5HP Stainless Steel Impeller 3-Phase Borehole Submersible Water AC Pump

The 5.5HP Doyin 4SP5-44 Stainless Steel Borehole Pump Body is designed for very deep and demanding borehole installations requiring exceptional water-lifting capability. Designed for pairing with a 5.5HP submersible motor, it delivers up to 6.6m³/h (6,600 litres per hour) with a maximum head of approximately 271 metres.

Its 44-stage multistage hydraulic configuration progressively develops the pressure needed to lift groundwater through substantial vertical distances. This makes the 4SP5-44 particularly suitable where lower-head pump configurations cannot meet the required total dynamic head.

Stainless steel construction provides the durability and corrosion resistance required for prolonged submerged operation. The combination of 271m head and 6,600L/h maximum flow makes it suitable for deep boreholes serving farms, institutions, estates and commercial water systems. Macire supplies verified Doyin pumping products and provides technical guidance on pump and motor matching.

⭐ Genuine Product | Verified & Supported by Macire

System Architecture & Configuration

44-Stage Hydraulic System

The 4SP5-44 uses a 44-stage multistage hydraulic configuration to develop the pressure required for very high-head groundwater pumping.

271m High-Head Capability

With a maximum head of approximately 271 metres, this pump body is specifically suited to demanding deep-borehole and high-elevation water-transfer installations.

6,600L/h Water Delivery

Maximum flow capacity is approximately 6.6m³/h, equivalent to 6,600 litres per hour, depending on the operating head.

Stainless Steel Construction

Stainless steel construction provides durability and corrosion resistance for long-term submerged borehole operation.

Motor Configuration

Designed for pairing with a compatible 5.5HP submersible borehole motor.

Technical Specifications

Key Features

• 271m maximum head for very deep and high-head borehole installations.
• Maximum water flow of 6.6m³/h.
• Delivers up to approximately 6,600 litres per hour.
• Designed for pairing with a 5.5HP submersible motor.
• 44-stage multistage hydraulic design for substantial pressure development.
• Stainless steel construction for submerged operation.
• Suitable for pumping water to high-elevation storage tanks.
• Well suited to farms, institutions, estates and commercial properties.
• Compatible with appropriate borehole control and protection equipment.
• Macire technical support available for correct system sizing.

Applications / Use Cases

• 🚜 Farms – Deep-borehole water supply for livestock, irrigation storage and agricultural operations.
• 🏠 Homes & Estates – Pumping groundwater from deep boreholes to elevated storage.
• 🏢 Commercial Properties – High-head groundwater supply for larger facilities.
• 🏥 Institutions – Borehole water supply for schools, hospitals and institutional facilities.
• 🏭 Commercial Water Systems – Deep-well pumping where substantial total dynamic head must be overcome.

Installation & Engineering Notes

The 271m maximum head is not the same as recommended borehole depth. Correct selection requires calculation of the total dynamic head (TDH), including dynamic water level, vertical lift, elevation to the discharge point and friction losses through pipes and fittings.

The 4SP5-44 should be paired with a correctly matched 5.5HP submersible motor, suitable electrical cables, delivery piping, non-return valves and control equipment.

Dry-run, overload and appropriate motor protection are strongly recommended. Macire can provide guidance on selecting compatible system components.

Care, Maintenance & Operations

1. Monitor water output and operating pressure regularly.
2. Ensure adequate borehole water is available during operation.
3. Use suitable dry-run and motor-overload protection.
4. Inspect electrical connections and control equipment periodically.
5. Check delivery pipes and valves for leakage or restriction.
6. Investigate unexpected reductions in flow or pressure.
7. Avoid operating outside the pump’s intended hydraulic range.
8. Use compatible replacement parts during maintenance.

Do’s & Don’ts

Do’s

• Calculate the required total dynamic head.
• Confirm the borehole’s sustainable water yield.
• Match the pump body with a compatible 5.5HP motor.
• Install suitable dry-run and overload protection.
• Use correctly sized delivery pipes and electrical cables.
• Have installation carried out by a competent borehole technician.

Don’ts

• Do not treat the 271m maximum head as borehole depth.
• Do not operate the pump without sufficient water.
• Do not pair it with an incorrectly rated motor.
• Do not operate against a closed or blocked discharge.
• Do not install without suitable motor protection.
• Do not ignore significant changes in flow, pressure or operating current.

Compatibility

Compatible with appropriately selected:

• 5.5HP submersible borehole motors
• Doyin automatic pump controllers
• Doyin water-level sensors
• Dry-run protection systems
• Borehole control panels
• Motor protection equipment
• Non-return valves
• Elevated storage tanks
• Pressure and water-distribution systems
• Correctly engineered solar pumping configurations

Performance Guide

Actual operating flow depends on total dynamic head, borehole yield, pipe diameter, friction losses and complete system configuration.

Mini FAQ

1. How much water can the Doyin 4SP5-44 deliver?
It has a maximum flow capacity of approximately 6.6m³/h, equivalent to 6,600 litres per hour.

2. Why is the 4SP5-44 suited to very deep borehole systems?
Its 271m maximum head and 44-stage multistage configuration provide the pressure capability required for demanding high-head applications.

3. What motor should be used?
The pump body is designed for pairing with a compatible 5.5HP submersible motor.

4. Can it pump directly from a 271m-deep borehole?
Not necessarily. The 271m figure represents maximum head, not simply borehole depth. Actual suitability depends on dynamic water level, delivery elevation, required flow and system losses.

5. Does Macire provide technical support and delivery?
Yes. Macire provides technical guidance for correct pump selection and supports delivery across Kenya.

Why Buy from Macire

• Genuine Doyin pumping products.
• Verification before dispatch.
• Technical guidance on deep-borehole pump selection.
• Assistance with pump-body and motor matching.
• Compatible controllers and protection equipment available.
• Installation and system-sizing guidance.
• After-sales technical support.
• Access to compatible spares and components.
• Kenya-wide delivery.
• Support for agricultural, institutional and commercial water systems.