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SKU: 12GS30
Lowara 12GS30 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
The Lowara 12GS30 represents a high-efficiency hydraulic pump end within the redesigned e-GS borehole family. Safe operation requires coupling this wet end with a standard 3.0 kW (4.0 HP) motor. Mounting configurations allow vertical deep wells or horizontal mounting inside cisterns.
Featuring a corrosion-resistant stainless steel external casing, this pump end houses a multi-stage hydraulic stack. The system utilizes 19 floating impellers made of PC/PPO + PS polymer. This configuration handles suspended sand up to 150 grams per cubic meter of fluid.
Coupled to a compatible 3.0 kW electric motor drawing 7.1 Amps on 415 V three-phase power, the system delivers a maximum head of 76.8 m. This multi-stage pump end has a maximum flow of 250 L/Min with a 50 mm Rp connection. Performance curves match manufacturer specifications.
The pump end handles water temperatures up to 35°C. Safe immersion depths reach up to 150 meters when using a 4OS motor or up to 300 meters with an L4C motor. Horizontal installation is possible for 4OS motors up to 2.2 kW and L4C motors up to 7.5 kW. The multi-stage design requires proper coupling with standard motors to maintain correct performance under standard system heads.
FEATURES
- Equipped with 19 multi-stage floating impellers designed to minimize abrasive wear from sand particulates.
- The external sleeve is fabricated from durable stainless steel to prevent rust and prolong operating life.
- Includes a built-in stainless steel non-return valve in the discharge head to prevent damaging backflow.
- The hexagonal shaft distributes mechanical torque evenly, eliminating vulnerable keyed connections.
- Features precision-cast stainless steel upper and lower brackets to maintain alignment with the motor.
- Complies fully with the Minimum Efficiency Index threshold of 0.40 under European ErP directives.
- Designed to safely handle water temperatures up to 35°C in continuous underwater applications.
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.
Will this borehole pump withstand mineral-laden water and suspended grit underground?
The stainless steel external casing with floating impellers made of PC/PPO + PS polymer design of the 12GS30 provides exceptional resistance to oxidation, safely passing suspended borehole sand up to 150 g/m³.
What electrical power input and supply voltage does this borehole pump demand?
Connecting the 12GS-30 to power requires a 3.0 kW motor configured for 380–415 V, 50 Hz, three-phase, with full current draw of 7.1 A.
Does this submersible unit include an internal non-return valve for horizontal operation?
Internal piping safeguards in the 12 GS 30 feature an integrated stainless-steel non-return valve in the delivery head, enabling horizontal mounting at a minimum recommended 3° incline with the motor positioned lowest.
What is the maximum vertical elevation pressure delivered by this deep well pump?
Pumping from subterranean water tables, the 12_GS_30 generates a peak dynamic head of approximately 76.8 m to maintain steady discharge flow.
What thread diameter attaches to the top outlet and what is the maximum delivery output?
Connecting the delivery riser to the 50 mm (Rp 2") top outlet allows the 12GS30 to pump a peak flow volume of approximately 250 L/Min within standard 4-inch (100 mm) or larger borehole casings.
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