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SKU: 4GS15
Lowara 4GS15 Stainless Steel Deep Well 4" Submersible Bore Pump (Wet End Only) with Floating Impeller
Australia-Wide
(08) 9240 2992
Official Lowara
Peace of Mind
Product Overview
Forming the hydraulic wet end of a submersible pump system, the Lowara 4GS15 is a redesigned 4-inch e-GS borehole component. This model is specified for coupling with a 1.5 kW (2.0 HP) electric motor. Well installation allows vertical placement or horizontal mounting inside tanks.
A stainless steel casing houses the multi-stage hydraulics, protecting the internal floating stack. This model is equipped with 19 floating impellers made of wear-resistant polymer. The system handles suspended sand particles up to a maximum of 150 grams per cubic meter.
Upon coupling this pump end to its specified 1.5 kW motor (rated for 10.5 Amps on 240 V single-phase power), the combined unit reaches a maximum head of 114.0 m. It delivers a maximum flow of 90 L/Min through a Rp 1-1/4" (32 mm) port. High volumetric delivery is maintained under load.
Continuous service is possible in liquid temperatures reaching up to a maximum of 35°C. The assembly is specified for submergence depths up to 150 meters with a 4OS motor or up to 300 meters with an L4C motor. Horizontal deployment is possible within motor limits. The multi-stage design requires proper coupling with standard motors to maintain correct performance under standard system heads.
FEATURES
- Features 19 multi-stage floating impellers to drastically limit wear and abrasion from suspended sand particles.
- Constructed with a sturdy stainless steel outer sleeve to limit corrosion and protect internal hydraulic components.
- Includes an integrated stainless steel strainer to filter out oversized particles and prevent debris entry.
- Features a hexagonal pump shaft design that distributes mechanical torque without vulnerable keyed joints.
- The upper and lower brackets are made of precision-cast stainless steel to establish a sturdy motor coupling.
- ErP/Ecodesign compliant in accordance with strict European Minimum Efficiency Index of 0.40 or higher.
- Suitable for continuous submerged operations in liquid temperatures reaching up to a maximum of 35°C.
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 vertical lift can this submersible well pumping unit sustain under load?
Generating high elevation discharge pressure, the 4GS15 achieves a maximum dynamic head of approximately 114.0 m for deep well groundwater extraction.
Which thread size fits the top delivery port and what flow rate does it support?
Riser lines thread into the top 32 mm (Rp 1-1/4") discharge port, with the 4GS-15 providing a peak flow rate of approximately 90 L/Min when operating in standard 4-inch (100 mm) or larger borehole casings.
How does this submersible bore unit maintain integrity in corrosive groundwater?
Protection against waterborne corrosive agents is delivered by stainless-steel with floating impellers components, allowing the 4 GS 15 to endure sand up to 150 g/m³.
Which power supply and voltage ratings are required for this deep borehole motor?
Powering the 4_GS_15 necessitates a 1.5 kW motor on a 220–240 V, 50 Hz, single-phase power supply (with 380–415 V, 50 Hz, three-phase motor options supported).
Is an internal non-return valve fitted in the discharge and can this unit lie horizontally?
Protection against backflow in the 4GS15 is provided by an integrated stainless-steel non-return valve in the delivery head, with horizontal mounting supported at a minimum recommended 3° incline with the motor lowest and a cooling sleeve.
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