4-inch Submersible Pump Range (Olbin)

The Olbin 4SD3 Series submersible borehole pumps are a proven choice across South Africa for
domestic, agricultural, and light commercial water supply. Each model is designed for
reliability, efficiency, and ease of installation.

Construction & Key Features

• Size: Standard 4-inch submersible design, suitable for 4″ and larger boreholes.
• Complete Sets: Each unit includes both pump and motor — factory matched and tested.
• Impellers: Noryl thermoplastic for durability, reduced motor load and corrosion resistance.
• Material: All wetted metal components are stainless steel for long service life.
• Motor Type: Oil-filled, rewindable submersible motor.

Choosing borehole pumps South Africa: voltage options

220 V (Single-Phase) models include a surface control box for easy connection and protection.
380 V (Three-Phase) versions are designed for higher-lift applications or larger installations requiring balanced loads.

Typical Applications

• Residential boreholes and irrigation systems
• Tank filling and pressure boosting
• Agricultural and small-scale irrigation schemes
• Rural and community water supply

Installation Notes

Use a correctly sized 4-core borehole cable rated for the pump’s current and voltage.
Cable length must be measured from the pump outlet in the borehole to the surface control panel.
Always fit a non-return valve above the pump and ensure the borehole remains submerged during operation.

Warranty & Support — EEZI PUMPS (Olbin)

All Olbin pumps sold by EEZI PUMPS include a 12-month warranty from date of purchase.
Our technical team provides selection, wiring guidance and troubleshooting assistance.

How the System Works

• Submersible pump lifts water from the borehole to a tank.
• Storage tank buffers supply and protects the borehole.
• Booster set feeds taps and irrigation at steady pressure.

We size the pump, tank, and booster; we also specify cable gauge and protection.
Send borehole depth, dynamic level, and target pressure to our team for an accurate selection.

For detailed model data, performance curves and wiring guides, visit:
220 V 4SDm3 Series and
380 V 4SD3 Series. We stock and support
borehole pumps South Africa wide with local parts and service.