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SKU: 12GS11-1
Lowara 12GS11-1 Stainless Steel 4" Submersible Bore Pump with Floating Impeller
Australia-Wide
(08) 9240 2992
Official Lowara
Peace of Mind
Product Overview
Pressure boosting and municipal water supply operations demand pumps that deliver continuous fluid transfer from underground sources. The Lowara 12GS11-1, a 4-inch submersible bore pump, provides reliable service for agricultural networks and industrial facilities. Its floating impeller design supports performance in water containing suspended solids.
A 1.1 kW single-phase motor on 240 V draws 7.6 Amps during normal operation. Maximum flow reaches 250 L/Min, while maximum head extends to 26.1 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 performance suits applications requiring high volume with moderate lift.
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 immersion in liquids up to 35°C, the complete unit comes with a control box and heatshrink kit for secure 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
- Includes control box and heatshrink kit for rapid installation
SPECIFICATIONS
| Max Flow | 250 L/Min |
| Max Head | 26 m |
| Power | 1.1 kW / 240v |
| Rated Current | 7.6 Amps |
| Suitable For | Pressure Boosting |
| 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 flow volume does this municipal and industrial water supply pump deliver?
The 12GS11-1 delivers high-volume groundwater extraction up to 250 L/Min with a maximum head of 26.1 metres.
What electrical accessories come standard with this single-phase pump?
The complete package of the 12GS-11-1 includes an external control box and a heatshrink kit for rapid installation.
What are the running current and power requirements for this motor?
Powered by a 1.1 kW single-phase motor on 240 V, the 12GS 11 1 draws 7.6 Amps during normal duty.
What borehole size and pipe connection does this unit use?
The 12GS_11_1 fits standard 4-inch boreholes with its 99 mm casing and incorporates a 50 mm threaded outlet.
Does this pump protect against destructive backflow upon shutdown?
An integrated stainless steel check valve in the 12GS11-1 prevents destructive backflow when the motor stops.
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