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SKU: 8GS75-3
Lowara 8GS75-3 Stainless Steel 4" Submersible Bore Pump with Floating Impeller
Australia-Wide
(08) 9240 2992
Official Lowara
Peace of Mind
Product Overview
Municipal water supply networks depend on pumps that guarantee consistent deep groundwater extraction without interruption. The Lowara 8GS75-3, a three-phase submersible bore pump, handles continuous operation from 4-inch boreholes where reliable high-volume, high-head delivery is essential. Its floating impeller configuration supports performance in water containing suspended solids.
Driven by a 7.5 kW three-phase motor on 415 V, the unit draws 18.7 Amps during normal operation. Maximum flow reaches 183 L/Min, while maximum head extends to 282.7 metres at shut-off. The motor requires a minimum fluid velocity of 8 cm/s around the casing for adequate cooling, and supports up to 30 starts per hour. This combination suits applications requiring extreme lift and substantial volume.
Inside the hydraulic section, floating impellers allow suspended particles up to 150 g/m³ to pass without compromising internal clearances. The hexagonal pump shaft delivers torque reliably across all stages, while the front wear ring works with the floating impeller to improve abrasion resistance. An integrated stainless steel check valve prevents destructive backflow when the motor stops.
Precision-cast stainless steel upper and lower support brackets maintain alignment between the pump and motor. The 99 mm diameter casing fits standard 4-inch boreholes, with a 50 mm threaded outlet. Rated for continuous submersion in liquids up to 35°C, the complete package includes a heatshrink kit for waterproof electrical connections.
FEATURES
- Floating impeller system handles abrasive groundwater without performance loss
- Hexagonal stainless steel shaft provides effective drive across all pump stages
- Front wear ring improves resistance to abrasive wear in sandy conditions
- Integrated non-return valve prevents reverse flow on motor shutdown
- AISI 304 stainless steel construction offers corrosion resistance during submersion
- Technopolymer impeller reduces starting torque requirements
- Supplied with heatshrink kit for waterproof electrical connections
SPECIFICATIONS
| Max Flow | 183 L/Min |
| Max Head | 282 m |
| Power | 7.5 kW / 415v |
| Rated Current | 18.7 Amps |
| Suitable For | Municipal Supply |
| Body Material | Stainless Steel |
| Liquid Temperature | Maximum 35°C |
| Outlet Size | 50 mm |
| Warranty | 12 Months |
Warranty & Returns
All products supplied by Foundation Pumps are covered by a minimum 12-month warranty unless otherwise stated. Some brands may offer longer manufacturer warranties. Warranty covers manufacturing defects, faulty materials and workmanship under normal use.
- Products must be installed correctly and in accordance with the manufacturer’s instructions.
- Warranty does not cover incorrect installation, misuse, dry running, normal wear and tear, unauthorised repairs or damage caused by external factors.
- Proof of purchase, photos, videos and installation details may be requested when assessing a warranty claim.
- The customer is responsible for returning the product to Foundation Pumps or the nominated service centre unless otherwise agreed.
- Removal, reinstallation, labour and associated site costs are generally the customer’s responsibility unless required under Australian Consumer Law.
- Change-of-mind returns may be accepted within 30 days provided the product is unused, uninstalled and returned in its original packaging.
- Customers are responsible for return freight costs for change-of-mind returns.
- Restocking fees may apply to special-order, bulky or non-stocked products.
- Used, installed or specially ordered products may not be eligible for change-of-mind returns.
- If a product arrives damaged or faulty, please contact Foundation Pumps as soon as possible so we can assist with the appropriate repair, replacement or refund.
Your rights under Australian Consumer Law are not affected.
What is the maximum shut-off head capability of this municipal water pump?
Delivering exceptional vertical lift, the 8GS75-3 achieves a maximum head of 282.7 metres with a flow rate up to 183 L/Min.
How much current does this 7.5 kW motor draw on a three-phase supply?
Connected to a 415 V three-phase supply, the 7.5 kW motor in the 8GS-75-3 draws 18.7 Amps during normal operation.
How many starts per hour does this heavy-duty submersible motor tolerate?
The 8GS 75 3 supports up to 30 starts per hour for reliable operation under fluctuating municipal demand.
Does this pump secure the water column against reverse drainage?
An integrated stainless steel check valve in the 8GS_75_3 prevents destructive backflow when the motor stops.
How does the hydraulic stack tolerate abrasive sand in deep wells?
Floating hydraulic impellers in the 8GS75-3 permit sand concentrations up to 150 g/m3 to pass without efficiency loss.
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