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SKU: ZN855-03/2A-3S
Lowara ZN855-03/2A-3S Stainless Steel 11kW Deep Well 8" Submersible Bore Pump with Semi-Axial Flow Impeller
Australia-Wide
(08) 9240 2992
Official Lowara
Peace of Mind
Product Overview
Application in agricultural irrigation and municipal water supply distribution is the primary focus for this three-stage 8-inch submersible unit. It is built for extracting clean water from deep boreholes where specific pressure matching is required for distribution networks. The unit is suitable for vertical well installation or horizontal deployment provided a 3-degree inclination is maintained. This configuration serving sectors needing consistent high-volume water lifting while matching specific lift parameters.
Hydraulic characteristics for this model include a maximum head of 69.3 m and a delivery rate reaching 1216 L/Min through its 125 mm discharge outlet. The electrical section features an 11 kW motor operating on a 415v three-phase supply with a rated current of 24.2 Amps. Performance metrics are maintained through a semi-axial hydraulic flow design achieving high efficiency in water transfer tasks. These values are verified for liquids with a density of 1.0 kg/dm³.
Component construction employs cast AISI 316 Stainless Steel for the delivery head, suction support, and internal impellers. The motor is also fabricated from 316 Stainless Steel and is rated for contact with liquids up to 25°C during continuous service. The assembly handles water containing suspended sand levels of 100 g/m³ through the use of technopolymer POM-C wear rings. A duplex stainless steel shaft and coupling are used to transmit power through the assembly at 2900 rpm.
The assembly handles immersion depths of 350 meters and features a 198 mm maximum overall diameter to fit standard 8-inch casings. A non-return valve with a stainless steel spring is built into the delivery casing to protect the pump from reverse flow. Internal clearance is managed by EPDM 70 bearing bushes and technopolymer wear rings supporting the duplex shaft assembly. This design is intended for high-demand municipal and industrial extraction tasks where flow capacity is required.
FEATURES
- Stainless steel cable covers provide mechanical protection for motor power leads along the casing.
- A stainless steel suction strainer excludes large particles from entering the hydraulic stages.
- EPDM 70 bearing bushes support the pump shaft assembly and handle mechanical loads during rotation.
- The integrated non-return valve features a stainless steel spring to prevent fluid backflow.
- A duplex stainless steel taperlock system secures the impellers to the shaft for torque transfer.
- Mechanical connection of the 8-inch motor follows NEMA standards for industrial system compatibility.
- Internal technopolymer POM-C wear rings maintain hydraulic clearances and reduce internal friction.
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.
Does this 11 kW / 415v motor require a specific starter control box for 415V grids?
Starter panels powering the ZN855-03/2A-3S must be configured for a 11 kW / 415v motor running on 415V three-phase supply.
How deep can the static water level be for this 69.3 m max head borehole pump?
Borehole depths matching the ZN855-03-2A-3S performance curve allow water extraction across head heights up to 69.3 m.
What maximum flow rate is available at the 125 mm discharge flange of this unit?
Discharge output at the 125 mm flange of the ZN855 03 2A 3S reaches a peak volumetric flow rate of 1216 L/Min.
Is this deep borehole pump engineered with corrosion-proof metals for harsh wells?
Harsh well environments are seamlessly handled by the ZN855_03_2A_3S, constructed with cast AISI 316 stainless steel wet end components and 316 motor construction.
How does the hydraulic design accommodate sand concentrations up to 100 g/m³?
Sand tolerance up to 100 g/m³ at 25°C allows the ZN855-03/2A-3S to operate reliably in sandy or silty aquifer formations.
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