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SKU: 12GS15-3
Lowara 12GS15-3 Stainless Steel 4" Submersible Bore Pump with Floating Impeller
Australia-Wide
(08) 9240 2992
Official Lowara
Peace of Mind
Product Overview
Demanding domestic water supply and municipal water distribution require pumps that ensure consistent high-volume groundwater extraction. The Lowara 12GS15-3, a three-phase submersible bore pump, handles continuous operation from 4-inch boreholes where reliable fluid transfer is essential. Its floating impeller design supports performance in water containing suspended solids.
A 1.5 kW three-phase motor on 415 V draws 4.4 Amps during normal operation. Maximum flow reaches 250 L/Min, while maximum head extends to 37.3 metres at shut-off. The motor requires a minimum fluid velocity of 8 cm/s around the casing for effective cooling, and supports up to 30 starts per hour. This performance suits applications requiring substantial volume and moderate lift.
Floating stack construction permits sand concentrations up to 150 g/m³ to pass without compromising internal clearances. The hexagonal pump shaft ensures reliable torque transfer 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 casing diameter 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 hydraulic stack allows sand and abrasives to pass without binding
- Hexagonal stainless steel shaft ensures effective impeller drive without slippage
- Front wear ring improves abrasion resistance in sandy groundwater conditions
- Integrated non-return valve stops reverse flow when the pump shuts down
- AISI 304 stainless steel casing resists corrosion during long-term submersion
- Technopolymer impeller reduces starting torque for smoother motor operation
- Supplied with heatshrink kit for waterproof electrical connections
SPECIFICATIONS
| Max Flow | 250 L/Min |
| Max Head | 37 m |
| Power | 1.5 kW / 415v |
| Rated Current | 4.4 Amps |
| Suitable For | Domestic 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 electrical supply and current draw are needed for this three-phase pump?
Driven by a 1.5 kW motor on a 415 V three-phase supply, the 12GS15-3 draws 4.4 Amps during normal operation.
What are the flow and pressure capabilities for municipal water distribution?
The 12GS-15-3 delivers high-volume flow up to 250 L/Min with a maximum shut-off head of 37.3 metres.
What pipe connection size is featured on the discharge head?
The 12GS 15 3 incorporates a 50 mm threaded discharge outlet for connection to standard pipework.
Does this model include backflow protection to stop water hammer?
An integrated stainless steel check valve in the 12GS_15_3 prevents destructive backflow when the motor stops.
What accessory is included for submersible electrical jointing?
A professional heatshrink kit is supplied with the 12GS15-3 for making waterproof electrical connections.
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