The 98m Doyin 4SPS4.5-800W DC Borehole Pump belongs to Doyin’s premium Stainless Steel Impeller Series, developed for users who require greater durability, improved hydraulic efficiency and longer service life than conventional impeller designs. Unlike ordinary impeller pumps, this model features precision-engineered stainless steel impeller stages that resist corrosion, abrasion and performance loss during continuous operation.

Powered by a 0.8kW (1HP) brushless DC permanent magnet motor, the pump delivers an impressive 4.5m³/h (4,500 litres per hour) while achieving a maximum delivery head of 98 metres. The hydraulic design maintains stable water pressure throughout varying solar conditions, making it an excellent choice for domestic water systems, irrigation projects, livestock farms and institutions relying on dependable off-grid water supply.

For maximum efficiency, Macire recommends pairing this pump with 2 × 550W high-efficiency solar panels, providing sufficient solar energy for reliable daytime pumping without fuel costs or grid electricity.

Whether installed in a family borehole, greenhouse irrigation system or commercial water supply project, the Doyin Stainless Steel Impeller Series is engineered to provide years of dependable service with minimal maintenance.

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Why Choose the Stainless Steel Impeller Series?

Unlike standard engineering plastic or ordinary impeller pumps, the 4SPS Series offers:

• Stainless steel impeller stages with superior wear resistance.
• Better efficiency retention during continuous pumping.
• Improved resistance to abrasive borehole water.
• Longer operational lifespan.
• Stable pressure delivery under changing solar irradiance.
• Lower maintenance requirements over time.
• Excellent performance in demanding agricultural and commercial installations.

Technical Specifications

Key Features

• Premium Stainless Steel Impeller hydraulic system.
• High-efficiency 0.8kW (1HP) brushless DC motor.
• Pumps up to 4,500 litres per hour.
• Maximum delivery head of 98 metres.
• Designed for continuous daytime solar pumping.
• Better resistance to corrosion and abrasive particles.
• Higher hydraulic efficiency than ordinary impeller models.
• Multi-stage impeller system for stable pressure output.
• Low maintenance and long operating life.
• Quiet operation with zero fuel costs.
• Compatible with 2 × 550W solar panels.
• Genuine Doyin quality supplied by Macire.

Ideal Applications

🚜 Medium-Scale Irrigation

Provides consistent water pressure for sprinkler systems, drip irrigation and vegetable farming.

🏡 Domestic Boreholes

Ideal for homes requiring reliable water delivery to elevated storage tanks.

🐄 Dairy & Livestock Farms

Suitable for supplying water to livestock troughs and farm storage tanks throughout the day.

🌱 Greenhouse Farming

Maintains dependable water supply for precision irrigation systems.

🏫 Schools & Institutions

Reliable off-grid water supply for boarding schools, churches and community facilities.

🏢 Commercial Water Supply

Perfect for lodges, workshops, construction sites and small businesses with independent boreholes.

Installation Recommendations

For optimum performance, Macire recommends:

• 2 × 550W high-efficiency solar panels
• Genuine MPPT DC solar pump controller
• Correctly sized HDPE rising main
• Stainless steel safety cable
• Borehole well cap
• Non-return valve
• Dry-run protection
• Surge protection where required

Professional installation ensures maximum efficiency and extended pump life.

Maintenance Tips

• Clean solar panels regularly to maintain maximum output.
• Inspect cable joints for moisture ingress.
• Check delivery pipes periodically for leaks.
• Avoid dry running.
• Flush the system if excessive sand is present.
• Service the controller according to manufacturer recommendations.
• Inspect borehole water quality annually.

Performance Overview

Actual performance depends on borehole depth, solar irradiance and installation conditions.

Frequently Asked Questions

Why choose a Stainless Steel Impeller instead of an Ordinary Impeller?

Stainless steel impellers provide superior durability, improved wear resistance and better long-term hydraulic efficiency, especially where pumps operate daily or where borehole water contains light abrasive particles.

How many solar panels are recommended?

Macire recommends 2 × 550W solar panels for reliable daily operation.

Can the pump operate without batteries?

Yes. It is designed for direct daytime solar pumping using a compatible MPPT controller.

Is it suitable for irrigation?

Yes. The combination of 4,500L/h flow and 98m head makes it ideal for irrigation, livestock watering and domestic water supply.

Does Macire provide installation support?

Yes. Macire supplies complete solar pumping systems, installation accessories, technical support and nationwide delivery.

Why Buy from Macire?

• Genuine Doyin products
• Expert pump selection and sizing
• Correct solar array recommendations
• Nationwide delivery across Kenya
• Technical support before and after purchase
• Genuine accessories and spare parts
• Professional installation guidance
• Reliable after-sales service
• Trusted supplier of solar water pumping solutions

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