4SD2/12 4″ Borehole Pump 0.55kW – 85m Max Head
- 4″
- 0.55 kW
- 85 m head
From R1,310.00
In stock
4" 4SD2 borehole pump, 0.55kW, up to 85m head. Available as a complete set (220V / 380V) or pump end only.
- Nationwide deliveryShipped from Pretoria
- 12-month warrantyAgainst manufacturing defects
- Expert advice061 744 1001
- Secure checkoutPayFast: card, Instant EFT & more
Overview
The 4SD2/12 is a 4" stainless steel multistage submersible borehole pump from the Vega 4SD2 range (nominal flow around 2 m³/h), delivering heads of up to 85m and flows up to 3.3 m³/h. Choose a complete set for your power supply, or just the pump end if you are replacing a worn one.
Available options:
- 220V set + analogue control box: 4SD2/12 pump end + 0.55kW 220V single-phase oil-filled motor + MA analogue control box
- 220V set + 20Y intelligent controller: 4SD2/12 pump end + 0.55kW 220V single-phase oil-filled motor + 20Y intelligent controller (dry-run protection)
- 380V 3-phase set + Y1 controller: 4SD2/12 pump end + 0.55kW 380V three-phase oil-filled motor + Y1 digital protection controller
- Pump end only (no motor): 4SD2/12 pump end (wet end) only – for replacing a worn pump end on an existing 0.55kW motor
- Motor power: 0.55kW
- Pump diameter: 4" – fits boreholes with an internal diameter of 100mm or more
- Stainless steel pump body and shaft
Performance Table:
| Flow (m³/h) | Flow (l/min) | Head (m) |
|---|---|---|
| 0 | 0 | 85 |
| 0.3 | 5 | 84 |
| 0.6 | 10 | 84 |
| 0.9 | 15 | 83 |
| 1.2 | 20 | 80 |
| 1.5 | 25 | 77 |
| 1.8 | 30 | 72 |
| 2.1 | 35 | 68 |
| 2.4 | 40 | 62 |
| 2.7 | 45 | 54 |
| 3 | 50 | 47 |
| 3.3 | 55 | 38 |
Choosing the right pump: add the depth to your borehole’s water level, the height up to your tank and about 10% for pipe friction – that’s your total head. Pick a pump whose head at the flow you need is higher than that total. Not sure of your water level or which pump fits? Contact us with your borehole details before ordering.
Which controller? The analogue box is the basic starter; the 20Y adds dry-run protection (recommended for low-yield boreholes); three-phase sets come with the Y1 protection controller. See all Borehole Controllers.
Not included: submersible cable, rope, delivery pipe and base plate.
Performance curve
4SD2/12 · 0.55 kW
Show the data table
| Flow m³/h | 0 | 0.3 | 0.6 | 0.9 | 1.2 | 1.5 | 1.8 | 2.1 | 2.4 | 2.7 | 3 | 3.3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Flow l/min | 0 | 5 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 |
| Head m | 84 | 84 | 84 | 82 | 79 | 75 | 69 | 63 | 56 | 47 | 36 | 23 |
Source: Vega 4ST & 4SD Borehole 2023 V1 catalogue. Performance at 50 Hz with clean water at 20 °C; actual duty within ISO 9906 tolerances.
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