4SD12/21 4 inch stainless steel borehole pump, 4 kW, 142 m head

4SD12/21 multistage pump end with discharge outlet, 142 m max head

4SD12/21 borehole pump set with oil-filled 4 kW motor

4SD12/21 4 Inch Borehole Pump, 4 kW, 142 m Head

SKU KMN-BORE-0161

A 4 kW, 4 inch stainless steel borehole pump lifting to 142 m, sold as a complete set or pump end and delivered across South Africa.

Price range: R1 872,00 through R21 592,00

4 inch stainless steel multistage pump, 4 kW, up to 142 m head
Up to 16.2 m³/h; 120 L/min at 112 m
Complete sets or pump end only, from R 1,872 VAT incl.
Fits boreholes of 100 mm or more

Configuration

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Delivered by our own trucks in 1 to 3 days. R550 / R950 / R1,450 by order weight. FREE on orders of R20,000 or more with code KH027. Delivery details

Specifications

Model	4SD12/21 (4 inch multistage submersible, 4SD12 range)
Pump diameter	4 inch, fits boreholes of 100 mm internal diameter or more
Pump body and shaft	Stainless steel
Motor power	4 kW, oil-filled
Motor voltage	380 V three-phase, 525 V three-phase, by option
Controller	Y1 digital protection controller, variable speed drive, by option
Nominal flow	Around 12 m³/h
Maximum flow	16.2 m³/h (270 L/min)
Maximum head	142 m at zero flow
Performance curve	0 L/min: 142 m; 30 L/min: 137 m; 60 L/min: 129 m; 90 L/min: 118 m; 120 L/min: 112 m; 150 L/min: 102 m; 180 L/min: 92 m; 210 L/min: 79 m; 240 L/min: 63 m; 270 L/min: 37 m
Self-priming	N/A (submersible)
Not included	Submersible cable, rope, delivery pipe and base plate
Net weight	36 kg
Shipping weight	42 kg
Dimensions	On request

Description

Overview

The 4SD12/21 is a 4 inch stainless steel multistage submersible borehole pump with a 4 kW motor, built for deep boreholes feeding orchards, large stock operations and settlement supply. It lifts to 142 m with the outlet closed and passes up to 16.2 m³/h at the end of its curve. In between it delivers 120 L/min at 112 m.

Buy a complete set for your power supply, or just the pump end to replace a worn wet end on an existing 4 kW motor.

To size it, add your water level depth, the climb to the tank and about 10% for pipe friction; the head at your flow must beat that total. Send us your borehole details if unsure. Browse our borehole pumps, or compare the 4SD12/18 pump, 4 kW and the 4SD12/25 pump, 5.5 kW.

Key features

Stainless steel pump body and shaft.
4 inch diameter, fits boreholes of 100 mm internal diameter or more.
4 kW oil-filled motor, 380 V three-phase or 525 V three-phase by option.
Y1 digital controller protects the motor on three-phase sets.

Options

380 V three-phase set with Y1 controller, R 9,160: Pump end, 4 kW 380 V three-phase motor, Y1 digital protection controller.
525 V three-phase set with VSD, R 21,592: Pump end, 4 kW 525 V three-phase motor, variable speed drive (VSD).
Pump end only, no motor, R 1,872: Wet end only, to replace a worn pump end on an existing 4 kW motor.

Where it works

A deep-lift pump at 142 m of head for orchards, big stock operations and settlement supply, common with North West cattle and game farms where load-shedding makes a reliable pump set essential.

What’s in the box

The 4SD12/21 pump end, plus the motor and controller for your chosen set.
Not included: submersible cable, rope, delivery pipe and base plate.

Delivery and warranty

Kamano delivers with its own trucks from Polokwane to all nine provinces in 1 to 3 days, including Cape Town, Bloemfontein, Rustenburg, Pietermaritzburg, eMalahleni and Richards Bay. A complete set ships at about 42 kg, so delivery is R 950; orders of R20,000 or more (VAT incl.) go free. Ask us for the warranty terms on this model.

Questions about this product

Which 4SD12/21 option suits my power supply?

At 4 kW this pump is offered on three-phase power only. Take the 380 V set with the Y1 controller, or the 525 V set with a VSD for soft starting and speed control. If only the wet end is worn, buy the pump end for R 1,872 and keep your 4 kW motor.

What flow will the 4SD12/21 give at my borehole depth?

It gives 60 L/min at 129 m, 120 L/min at 112 m and 210 L/min at 79 m, with 142 m at zero flow. Add your water level depth, the climb to your tank and about 10% for pipe friction, then pick a point on the curve above that total. Send us your borehole details and we will check the match before you order.

Do you deliver the 4SD12/21 to Bloemfontein?

Yes. We deliver with our own trucks from Polokwane to Bloemfontein and every other province in 1 to 3 days. A complete set ships at about 42 kg, so the delivery fee is R 950 for that weight band. Orders from R20,000 (VAT incl.) are delivered free, so a set plus cable and pipe can qualify.

What else do I need to install a 4 kW borehole pump?

You still need submersible cable, rope, delivery pipe and a base plate, as none are included. The pump fits boreholes of 100 mm internal diameter or more. Get the cable size from your supplier based on the motor current and the depth, and have the installation done by a competent borehole installer.

Nationwide delivery from Polokwane

Delivered to all nine provinces in 1 to 3 days

We deliver the 4SD12/21 4 Inch Borehole Pump, 4 kW, 142 m Head with our own trucks to Johannesburg, Pretoria, Cape Town, Durban, Gqeberha, Bloemfontein, Polokwane, Mbombela, Mokopane, eMalahleni, Mahikeng, Pietermaritzburg, Richards Bay and Rustenburg, and to farms, mines and sites in between. This item ships in the R950 delivery band (30 to 60 kg). Orders of R20,000 or more deliver free with code KH027.

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