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SKU: ZN855-03/2A-3R
Lowara ZN855-03/2A-3R 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
Hydraulic performance characteristics based on a three-stage assembly with reduced diameter impellers define this 8-inch submersible pump. It provides a robust solution for large-scale water extraction in municipal networks and industrial distribution systems requiring head matching. The pump is compatible with vertical borehole setups and horizontal installations with a 3-degree minimum inclination. This model serves as a specialized tool for lifting groundwater while maintaining precise pressure parameters for irrigation.
The model achieves performance metrics including a maximum head of 69.3 m and delivery rates of 1216 L/Min through the 125 mm outlet. For power, the pump uses an 11 kW motor drawing 24.2 Amps of rated current from a 415v three-phase electrical supply. Efficiency is maintained through precise hydraulic geometry rotating at 2900 rpm for efficient lifting in borehole environments. All technical specifications are verified based on liquids with a density of 1.0 kg/dm³.
Material integrity is ensured through the use of cast AISI 316 Stainless Steel for the pump body, diffusers, and delivery head. This variant is equipped with a Duplex Stainless Steel motor, providing enhanced material performance in aggressive water conditions. The construction handles liquids containing suspended sand levels of 100 g/m³ and is rated for temperatures up to 25°C. A duplex stainless steel shaft is utilized to handle mechanical stresses during rotation.
The unit is rated for an immersion depth limit of 350 meters and maintains a maximum overall diameter of 198 mm including cable covers. A built-in non-return valve with a stainless steel spring is situated in the delivery head to prevent backflow and reverse rotation. Internal tolerances are managed by technopolymer POM-C wear rings and EPDM 70 bearing bushes supporting the shaft alignment. This electric pump is designed for continuous duty cycles in municipal infrastructure.
FEATURES
- Internal technopolymer POM-C wear rings maintain hydraulic clearances and reduce internal friction.
- 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.
- Stainless steel cable covers provide mechanical protection for motor power leads along the casing.
- 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.
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 power specifications govern the continuous duty performance of this 11 kW / 415v motor?
Continuous industrial duty for the ZN855-03/2A-3R is maintained through a 415V three-phase feed to its 11 kW / 415v motor.
What maximum vertical head lift is supported by the semi-axial impeller stages?
Semi-axial impeller stages in the ZN855-03-2A-3R generate up to 69.3 m of vertical lift pressure for surface transfer.
How does the semi-axial flow design enable delivery rates up to 1216 L/Min?
Semi-axial hydraulics give the ZN855 03 2A 3R the capability to discharge up to 1216 L/Min through a 125 mm connection.
What material properties ensure resistance against mineral pitting in deep aquifers?
Mineral pitting protection in deep aquifers is ensured for the ZN855_03_2A_3R by its cast AISI 316 stainless steel hydraulics and a Duplex Stainless Steel motor.
What casing clearance is provided when lowering this 198 mm pump into 8-inch wells?
Easy positioning inside 8-inch well casings is enabled by the 198 mm outer profile dimension of the ZN855-03/2A-3R.
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