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SKU: 4GS11-12L
Lowara 4GS11-12L Stainless Steel 2-Wire 4" Submersible Bore Pump with Floating Impeller
Australia-Wide
(08) 9240 2992
Official Lowara
Peace of Mind
Product Overview
Municipal water supply relies on the Lowara 4GS11-12L, a 4-inch 2-wire submersible bore pump with an internal capacitor that aids rapid installation. This unit removes the need for a surface control box while ensuring continuous groundwater extraction. The floating impeller configuration 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 90 L/Min, while maximum head extends to 84 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.
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 32 mm threaded outlet. Rated for continuous immersion in liquids up to 35°C, the complete unit comes with a heatshrink kit for secure electrical connections.
Features
- Two-wire motor design with built-in capacitor simplifies electrical installation
- 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
- Supplied with heatshrink kit for waterproof electrical connections
SPECIFICATIONS
| Max Flow | 90 L/Min |
| Max Head | 84 m |
| Power | 1.1 kW / 240v |
| Rated Current | 7.6 Amps |
| Suitable For | Municipal Supply |
| Body Material | Stainless Steel |
| Liquid Temperature | Maximum 35°C |
| Outlet Size | 32 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 maximum shut-off head does this 2-wire municipal pump reach?
The 4GS11-12L achieves a maximum shut-off head of 84 metres while delivering flow rates up to 90 L/Min.
Does this pump eliminate the need for an external control box?
The 2-wire motor design with an internal capacitor allows the 4GS-11-12L to operate directly without an external starter box.
What is the running current for this 1.1 kW single-phase motor?
Wired for a 240 V single-phase connection, the 1.1 kW motor of the 4GS 11 12L draws 7.6 Amps.
How does the pump shaft prevent drive slippage during high-volume pumping?
A rigid hexagonal stainless steel shaft in the 4GS_11_12L ensures dependable, non-sip drive across all stages.
Does this unit prevent vertical water column drainage when deactivated?
An integrated stainless steel check valve in the 4GS11-12L locks the vertical fluid column upon shutdown.
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