Grundfos SP 7-3 Submersible Borehole Pump - 98979357 (3 x 415V, MS402 Motor)
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Grundfos SP 7-3 is a stainless-steel submersible borehole pump designed for pumping clean groundwater. It can be installed vertically or horizontally and is built with high corrosion resistance using stainless steel (EN 1.4301 / AISI 304). This pump carries drinking water approval and is fitted with a 0.55 kW MS402 motor.
The motor is a canned-type submersible motor offering good mechanical stability and high efficiency. It includes a sand shield, lip seal, water-lubricated journal bearings, and a volume compensating diaphragm. Suitable for liquid temperatures up to 40Â °C. The motor is not fitted with a temperature sensor; if monitoring is required, a Pt1000 sensor can be fitted. Motor is for direct-on-line (DOL) starting.
Suitable for:
- Domestic ground water intake
- Domestic water pressure boosting
- Ground water intake
- Irrigation
- Community water supply
- Rotor & spray irrigation
- Ground water transfer
- Livestock & wildlife watering
- Water treatment fertigation, chemigation & dosing
- Pivot & lateral irrigation
- Frost protection
- Solar boosting and water supply solutions
- Controls & digital groundwater management
- Solar controls & digital water management
- Solar water treatment fertigation & dosing
- Municipal solar solutions
- Agriculture solar solutions
- Livestock watering with solar solutions
- Community solar solutions
Key Performance:
| Parameter | Value |
|---|---|
| Rated flow | 7 m³/h |
| Rated head | 13 m |
| Stages | 3 |
| Pump speed (data basis) | 2900 rpm |
Liquid:
| Parameter | Value |
|---|---|
| Pumped liquid | Water |
| Liquid temperature range | -15 .. 40 °C |
| Max liquid temp at 0.15 m/s | 40 °C |
| Selected liquid temperature | 20 °C |
| Density | 998.2 kg/m³ |
Technical:
| Parameter | Value |
|---|---|
| Model | SP 7-3 |
| SKU | 98979357 |
| Shaft seal for motor | LIPSEAL |
| Approvals | CE, EAC, UKCA, SEPRO, MOROCCO |
| Drinking water approvals | ACS, DM174 |
| Curve tolerance | ISO9906:2012 3B |
| Motor version | T40 |
| Return valve | YES |
Materials:
| Component | Material |
|---|---|
| Pump | Stainless steel (EN 1.4301 / AISI 304) |
| Impeller | Stainless steel (EN 1.4301 / AISI 304) |
| Motor | Stainless steel (DIN W.-Nr. 1.4301) |
Installation:
| Parameter | Value |
|---|---|
| Maximum ambient pressure | 15 bar |
| Maximum operating pressure | 15 bar |
| Maximum outlet pressure | 1.9 bar |
| Type of connection | Rp |
| Size of connection | 1 1/2 inch |
| Motor diameter | 4 inch |
| Minimum borehole diameter | 105 mm |
Electrical Data:
| Parameter | Value |
|---|---|
| Motor type | MS402 |
| Motor flange design | NEMA |
| Rated power - P2 | 0.55 kW |
| Mains frequency | 50 Hz |
| Rated voltage | 3 x 380-400-415 V |
| Rated current | 2.00-2.20-2.35 A |
| Starting current | 470-480-470 % |
| Cos phi (power factor) | 0.70-0.64-0.60 |
| Rated speed | 2850-2860-2870 rpm |
| Start method | Direct-on-line (DOL) |
| Enclosure class | IP68 |
| Insulation class | B |
| Built-in temp. transmitter | No |
| Length of cable | 1.7 m |
| Power cable type | FLAT |
Product Identification:
| Field | Value |
|---|---|
| Product name | SP 7-3 |
| Product No. | 98699178 |
| EAN | 5712600108394 |
Documentation & Downloads:
| Document | Download |
|---|---|
| SP (Safety instructions) | 📄 Download PDF |
| SP A, SP - submersible pumps, motors and accessories (Data booklet) | 📄 Download PDF |
| SP accessories (Data booklet) | 📄 Download PDF |
| SP 17, 30, 46, 60, 77, 95, 125, 160, 215 (Illustrated instruction) | 📄 Download PDF |
| SP, SP A (Service kit Catalogue) | 📄 Download PDF |
| SP (Recommended spare parts) (Service Kit Catalogue) | 📄 Download PDF |