1.1kW 4.2m³/h 112m Doyin 4SP3-18 1.5HP 4200L/h Stainless Steel Impeller 3-Phase Borehole Submersible Water AC Pump

The Doyin 4SP3-18 Stainless Steel Borehole Pump Body is designed for deep-well and borehole water-pumping installations requiring a combination of high head and practical water delivery. Rated for use with a 1.5HP submersible motor, it delivers up to 4.2m³/h (4,200 litres per hour) and supports a maximum head of approximately 112 metres.

Its multistage hydraulic configuration makes it particularly suitable for boreholes where water needs to be lifted over considerable vertical distances. The stainless steel construction provides durability in submerged operation while helping resist corrosion during long-term use.

Macire supplies and verifies Doyin borehole pump components and can assist with correct motor matching, borehole sizing and installation requirements. Proper selection should consider borehole depth, dynamic water level, required flow and delivery height.

⭐ Genuine Product | Verified & Supported by Macire

System Architecture & Configuration

Hydraulic System

The 4SP3-18 configuration uses a multistage pump-body design engineered to progressively build pressure for high-head borehole applications.

Flow Performance

Provides water delivery of up to 4.2m³/h, equivalent to approximately 4,200L/h, subject to operating head and installation conditions.

High-Head Capability

The pump body is designed for installations requiring a maximum head of approximately 112 metres.

Construction

Stainless steel construction provides strength and corrosion resistance for continuous submerged borehole operation.

Motor Configuration

This is a pump body and should be correctly matched with a compatible 1.5HP submersible motor.

Technical Specifications

Key Features

• High 112m maximum head for deep borehole applications.
• Delivers up to 4.2m³/h of water.
• Maximum water delivery equivalent to approximately 4,200L/h.
• Designed for pairing with a 1.5HP submersible motor.
• Multistage hydraulic construction for efficient pressure development.
• Stainless steel construction for submerged operating conditions.
• Suitable for domestic, agricultural and commercial water supply.
• Compact borehole configuration for deep-well installations.
• Can be integrated with suitable borehole control and protection equipment.
• Motor and pump-body matching support available through Macire.

Applications / Use Cases

• 🏠 Homes – Borehole water supply to storage tanks and domestic systems.
• 🚜 Farms – Water supply for livestock, irrigation tanks and general farm use.
• 🏢 Commercial Properties – Borehole water transfer and storage applications.
• 🏥 Institutions – Water supply for schools, clinics and other facilities.
• 🏭 Light Commercial Use – High-head groundwater transfer applications.

Installation & Engineering Notes

Confirm the borehole depth, static and dynamic water levels, required flow rate and total delivery head before installation. The 4SP3-18 pump body must be paired with a correctly sized compatible 1.5HP submersible motor.

Use an appropriately sized delivery pipe, non-return valve, electrical protection and control equipment. Macire can provide technical guidance when matching the pump body, motor and borehole installation.

Care, Maintenance & Operations

1. Monitor water output for unexpected reductions in flow.
2. Ensure the pump never operates in a dry borehole.
3. Inspect electrical controls and motor protection regularly.
4. Check delivery pipes and fittings for leakage.
5. Avoid operating beyond the recommended head and flow conditions.
6. Inspect the system if unusual vibration or noise develops.
7. Use suitable borehole protection controls to improve system life.
8. Contact Macire for compatible components and technical support.

Do’s & Don’ts

Do’s

• Confirm borehole depth before selecting the pump.
• Match the body with the correct 1.5HP motor.
• Install appropriate dry-run and overload protection.
• Use correctly sized delivery piping.
• Have the installation completed by a competent technician.

Don’ts

• Do not operate the pump without sufficient water.
• Do not use an incorrectly rated motor.
• Do not select the pump based on borehole depth alone.
• Do not restrict the discharge excessively.
• Do not operate without suitable electrical protection.

Compatibility

The Doyin 4SP3-18 can be integrated with:

• Compatible 1.5HP borehole submersible motors
• Borehole pump control boxes
• Automatic pump controllers
• Water-level sensors
• Dry-run protection systems
• Non-return valves
• Pressure and storage tanks
• Suitable solar pumping/control systems where correctly engineered

Performance Guide

Actual flow depends on total dynamic head, pipe losses, borehole conditions and motor configuration. Pump sizing should be based on the installation requirements.

Mini FAQ

1. Is the Doyin 4SP3-18 suitable for deep boreholes?
Yes. Its 112m maximum head makes it suitable for high-head borehole applications when correctly sized.

2. How much water can it deliver?
Maximum flow is approximately 4.2m³/h or 4,200L/h, depending on operating head.

3. Does it come with a motor?
This product is specified as a pump body. It is designed for matching with a suitable 1.5HP submersible motor.

4. Can Macire assist with pump sizing?
Yes. Macire can guide customers on motor matching and borehole-system selection based on installation requirements.

5. Is delivery available across Kenya?
Yes. Macire supports product delivery to customers across Kenya.

Why Buy from Macire

• Genuine Doyin products and components.
• Product verification before dispatch.
• Technical guidance on pump selection.
• Assistance with pump-body and motor matching.
• Borehole installation guidance available.
• Compatible controllers and accessories available.
• After-sales technical support.
• Kenya-wide delivery.
• Support for domestic, agricultural and commercial pumping projects.