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SKU: ZN855-02-3S
Lowara ZN855-02-3S Stainless Steel 9.3kW 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 requirements for high volume and pressure distribution are met by this two-stage 8-inch series submersible pump. It is intended for borehole extraction where multiple consumption points must be supplied from a single deep-well source. The assembly is compatible with vertical installations or horizontal mounting in distribution systems with a 3-degree minimum incline. This model provides the necessary lift and flow for large residential complexes or municipal networks.
Hydraulic operating characteristics for this configuration include a maximum head of 53.9 m and a maximum flow of 1333 L/Min via the 125 mm discharge outlet. Equipped with an 11 kW motor for 415v three-phase power, the unit draws a rated current of 24.2 Amps during operation. The semi-axial flow design achieves high delivery efficiency for municipal and industrial water distribution tasks. Performance parameters are based on standard water density of 1.0 kg/dm³.
Primary components such as the impellers, diffusers, and suction casing are made of cast AISI 316 Stainless Steel to handle aggressive media. The motor is also constructed from 316 Stainless Steel and is rated for contact with liquids up to 25°C. The system handles water with suspended sand levels of 100 g/m³ through its two-stage hydraulic arrangement. A duplex stainless steel shaft and coupling are used to transmit power during rotation at 2900 rpm.
The electric pump is rated for immersion depths up to 350 meters and includes an integrated non-return valve to prevent fluid backflow. The unit's overall diameter is 198 mm including motor cable covers, fitting within standard 8-inch borehole casings. Internal clearances are maintained by technopolymer POM-C wear rings and EPDM 70 bearing bushes supporting the duplex shaft assembly. This design is intended for continuous industrial and municipal duty where large flow potential is required.
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.
- Mechanical connection of the 8-inch motor follows NEMA standards for industrial system compatibility.
- 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.
- Stainless steel cable covers provide mechanical protection for motor power leads along the casing.
SPECIFICATIONS
| Max Flow | 1333 L/Min |
| Max Head | 53.9 m |
| Power | 9.3 kW / 415v |
| Rated Current | 20.5 Amps |
| Suitable For | Domestic 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.
How is the power cable connected to this 9.3 kW / 415v three-phase submersible motor?
Power cables feeding the ZN855-02-3S connect to a 415V three-phase terminal driving its 9.3 kW / 415v submerged motor.
What elevation head pressure can be maintained during continuous extraction?
Continuous duty extraction with the ZN855-02-3S is maintained across total head requirements up to 53.9 m.
What pipe diameter is required to connect to the 125 mm top discharge port?
Connecting standard 125 mm riser pipes to the ZN855 02 3S allows continuous fluid delivery up to 1333 L/Min.
What materials are used for the wet end and motor construction?
The ZN855_02_3S uses cast AISI 316 stainless steel wet-end components and 316 motor construction.
What backflow protection mechanism is integrated into the top discharge casing?
Hydraulic shock loads are isolated from the ZN855-02-3S by an integrated spring-loaded check valve in the discharge head.
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