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SKU: ZN855-05/2A-3R
Lowara ZN855-05/2A-3R Stainless Steel 22kW Deep Well 8" Submersible Bore Pump with Semi-Axial Flow Impeller
Australia-Wide
(08) 9240 2992
Official Lowara
Peace of Mind
Product Overview
Hydraulic design principles based on a five-stage assembly with two reduced impellers characterize this 8-inch range submersible unit. It serves as an efficient extraction tool for industrial cooling systems and large-scale agricultural distribution needing high-pressure lifts from aquifers. The unit supports vertical well mounting or horizontal deployment in distribution networks where the motor remains in the lowest position. This model is intended for municipal water supply projects requiring specific head parameters.
Operating parameters include a maximum head of 123.1 m and a delivery capacity scaling up to 1333 L/Min through the 125 mm outlet. Electrical power is supplied by a 22 kW motor drawing 47.3 Amps of rated current from a 415v three-phase supply. Efficiency is achieved through a semi-axial hydraulic arrangement rotating at 2900 rpm for efficient lifting in borehole environments. Performance data is verified for clean water with standard density and kinematic viscosity.
Material integrity is ensured through the use of cast AISI 316 Stainless Steel for wetted components including the diffusers and suction support. This variant is equipped with a Duplex Stainless Steel motor, providing specific material performance in aggressive water conditions. The assembly processes water 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.
Operational ratings include a 350-meter maximum immersion depth and a 198 mm maximum overall diameter including motor cable protection 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 duplex shaft. The pump is designed for continuous duty cycles in industrial borehole extraction.
FEATURES
- EPDM 70 bearing bushes support the pump shaft assembly and handle mechanical loads during rotation.
- A duplex stainless steel taperlock system secures the impellers to the shaft for torque transfer.
- 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.
- A stainless steel suction strainer excludes large particles from entering the hydraulic stages.
- 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.
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.
Is this 22 kW / 415v submersible motor rated for continuous industrial duty cycles?
Industrial duty certification for the ZN855-05/2A-3R is grounded in its 22 kW / 415v three-phase 415V motor design.
How many vertical meters of lift pressure can this deep-well pump generate?
Vertical lift pressure developed by the ZN855-05-2A-3R enables groundwater recovery across head limits up to 123.1 m.
What peak water flow rate can be sustained through the 125 mm top connection?
Top connection threading on the ZN855 05 2A 3R fits 125 mm riser pipe to deliver maximum flow rates of 1333 L/Min.
How does the stainless steel build protect hydraulic efficiency in harsh water?
Hydraulic efficiency in the ZN855_05_2A_3R is preserved over long service cycles by its cast AISI 316 stainless steel hydraulics and a Duplex Stainless Steel motor.
How does the assembly handle sand up to 100 g/m³ without loss of performance?
Sand concentration tolerance of 100 g/m³ ensures the ZN855-05/2A-3R continues pumping cleanly in unrefined groundwater.
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