Reference image. Final construction follows the confirmed model and quotation.
Deep Well Pumps
4SP03 Stainless Steel Deep Well Submersible Pump
Model: 4SP03
4SP03 all-stainless-steel multistage deep-well submersible pump for groundwater intake, irrigation, industrial water supply and booster systems. The catalog series covers 12 configurations, capacities up to 4 m³/h and rated heads up to 225 m.
TECHNICAL DATA
Specifications, performance and construction
Confirm the final operating point, materials, motor and connection standard before ordering.
4SP03 series overview
4SP03 all-stainless-steel multistage deep-well submersible pump for groundwater intake, irrigation, industrial water supply and booster systems. The catalog series covers 12 configurations, capacities up to 4 m³/h and rated heads up to 225 m.
The hydraulic section uses stainless-steel diffusers and impellers with an integrated non-return valve. Select the exact stage count only after checking the required flow, total dynamic head, well diameter, setting depth and power supply.
Catalog performance range
| Series | 4SP03 |
|---|---|
| Nominal well diameter | 4 in |
| Capacity range | 0-4 m³/h |
| Maximum rated head | 225 m |
| Motor power range | 0.37-4.00 kW |
| Frequency / speed | 50 Hz / 2850 rpm |
| Construction | All-stainless-steel multistage submersible pump |
4SP03 performance curves and model parameter table
This high-resolution sheet is reproduced from the official DFIN SP stainless-steel deep-well pump catalog. Enlarge it to compare stage count, motor power, dimensions, weight, rated head and flow at each duty point.
Download complete SP catalog (PDF) ↓
Available models
The following model codes are listed in the DFIN SP stainless-steel deep-well pump catalog:
- 4SP03-06
- 4SP03-09
- 4SP03-12
- 4SP03-15
- 4SP03-18
- 4SP03-22
- 4SP03-25
- 4SP03-29
- 4SP03-33
- 4SP03-39
- 4SP03-45
- 4SP03-52
Applications
- Irrigation and groundwater intake
- Domestic, civil and industrial water supply
- Fountains and water displays
- Pressure boosting and reservoir filling
Construction and materials
| Discharge head, check valve and suction interconnector | SUS304 / SUS316L |
|---|---|
| Impeller and diffuser | SUS304 / SUS316L |
| Shaft | SUS304 / SUS431 |
| Coupling, strainer and cable guard | SUS304 / SUS316L |
| Bearing options | NBR / VITON / PTFE |
Selection notes
- Maximum recommended sand content: 0.30%.
- Verify liquid temperature, water chemistry and chloride content before material selection.
- Confirm dynamic water level, pipe losses, cable length and motor voltage.
- Catalog curves are reference data; the final duty point must be checked against the system curve.
SELECTION SUPPORT
Application-based pump selection
Send the liquid, flow, head or pressure, temperature, solids, installation, power supply and destination for a verified recommendation.
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