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SKU: ZN855-04-3S
Lowara ZN855-04-3S Stainless Steel 18.5kW Deep Well 8" Submersible Bore Pump with Semi-Axial Flow Impeller
Australia-Wide
(08) 9240 2992
Official Lowara
Peace of Mind
Product Overview
Operating environment durability characterizes this four-stage 8-inch series submersible pump designed for high-volume clean water lifting. It provides consistent pressure distribution from deep wells to support municipal water networks and industrial distribution infrastructure. The assembly is compatible with vertical installations or horizontal mounting in systems where a minimum incline is maintained. This model serves as a dedicated tool for sectors requiring reliable head and large flow capacities.
Performance characteristics for this model include a maximum head of 107.8 m and a delivery capacity of 1333 L/Min via the 125 mm outlet. Equipped with an 18.5 kW motor for 415v three-phase power, the unit draws a rated current of 38.5 Amps during service. The semi-axial flow design achieves a nominal flow rate for high efficiency in water transfer tasks at 2900 rpm. These metrics are verified for liquids with a density of 1.0 kg/dm³ during industrial operation.
The structure is fabricated from cast AISI 316 Stainless Steel for the delivery head, suction support, and internal impellers. The motor is also constructed from 316 Stainless Steel and is rated for operation in liquids at temperatures up to 25°C. The system handles water with suspended sand levels of 100 g/m³ through its four-stage configuration. A duplex stainless steel shaft and coupling transmit power to the hydraulic end to manage the generated torque.
This electric pump is rated for immersion depths up to 350 meters and features a built-in non-return valve with a stainless steel spring. Physical dimensions include a 198 mm maximum diameter including motor cable protection covers, fitting within standard borehole casings. Internal wear is managed by technopolymer POM-C wear rings and EPDM 70 bearing bushes supporting the shaft assembly. The unit is designed for heavy-duty extraction and municipal water supply applications.
FEATURES
- A duplex stainless steel taperlock system secures the impellers to the shaft for torque transfer.
- The integrated non-return valve features a stainless steel spring to prevent fluid backflow.
- 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.
- Internal technopolymer POM-C wear rings maintain hydraulic clearances and reduce internal friction.
- Mechanical connection of the 8-inch motor follows NEMA standards for industrial system compatibility.
- Stainless steel cable covers provide mechanical protection for motor power leads along the casing.
SPECIFICATIONS
| Max Flow | 1333 L/Min |
| Max Head | 107.8 m |
| Power | 18.5 kW / 415v |
| Rated Current | 38.5 Amps |
| Suitable For | Pressure Water Supply |
| Body Material | AISI 316 Stainless Steel |
| Liquid Temperature | Maximum 25°C |
| Outlet Size | 125 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 voltage input matches the electrical winding of this 18.5 kW / 415v borehole motor?
The motor winding of the ZN855-04-3S is insulated to Class F standards and powered by a 18.5 kW / 415v 415V three-phase supply.
How does the 107.8 m max head capacity support high-pressure water distribution?
High-pressure water distribution is supported by the ZN855-04-3S, delivering dynamic head output up to 107.8 m.
Does the 125 mm discharge connection ensure low pressure loss at 1333 L/Min flow?
Low internal resistance in the ZN855 04 3S allows maximum discharge flow rates up to 1333 L/Min via its 125 mm outlet.
Will this submersible unit resist oxidation in brackish underground water sources?
Oxidation-proof performance in brackish underground water is delivered by the ZN855_04_3S via its cast AISI 316 stainless steel wet end components and 316 motor construction.
How does the suction strainer prevent large solids from entering the hydraulic stages?
Particulate exclusion in the ZN855-04-3S is handled by a stainless steel suction strainer covering the inlet bracket.
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