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SKU: ZN8125-03/3A-3R
Lowara ZN8125-03/3A-3R Stainless Steel 18.5 kW Deep Well 8" Submersible Pump with Semi-Axial Flow Impeller
Australia-Wide
(08) 9240 2992
Official Lowara
Peace of Mind
Product Overview
Mining applications and water table level control are handled by the Lowara ZN8125-03/3A-3R. The pump also serves water supply from deep wells, pressure boosting in civil and industrial systems, irrigation, supply of surge tanks and reservoirs, and firefighting and washing systems. The pump is suitable for borehole installation, with horizontal arrangements possible at a 3-degree minimum inclination.
Rated at 18.5 kW with a current draw of 42 Amps at 415V three-phase, the pump develops 65.6 m of head at 30 m³/h with a maximum flow of 2600 L/Min. The 125 mm discharge outlet includes an integrated non-return valve. Performance is presented according to ISO 9906:2012 Grade 3B tolerances.
The AISI 316 stainless steel pump casing houses the hydraulic section with a semi-axial flow impeller configuration. The assembly weighs 119.4 kg and operates at liquid temperatures up to 25°C. Sand handling capacity is rated at 100 g/m³.
Thermal protection for the motor is provided by Class F insulation, with an IP68-rated enclosure enabling submerged operation. NEMA-compliant flange mounting and coupling dimensions meet standard motor connection requirements.
FEATURES
- Stainless steel pump shaft is specified for the hydraulic assembly
- AISI 316 stainless steel pump casing is specified for the hydraulic assembly
- Stainless steel impellers and diffusers are specified for the hydraulic assembly
- Built-in non-return valve helps limit reverse flow during pump shutdown
- EPDM water-lubricated bearing bushes are specified for the guide-bearing assembly
- NEMA-standard motor coupling dimensions are specified for standard motor mounting
- Horizontal installation support with 3-degree minimum inclination
* Motor and pump supplied separately - requires assembly
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.
Will this borehole pump withstand mineral-laden water and suspended grit underground?
The AISI 316 stainless steel design of the ZN8125-03/3A-3R provides exceptional resistance to oxidation, safely passing suspended borehole sand up to 100 g/m³.
What electrical power input and supply voltage does this borehole pump demand?
Driving the hydraulic assembly of the ZN8125-03-3A-3R requires a 18.5 kW motor operating on 380–415 V, 50 Hz, three-phase at 42 A.
Does this submersible unit include an internal non-return valve for horizontal operation?
An integrated spring-loaded check valve in the ZN8125 03 3A 3R discharge head stops reverse water flow, while horizontal installation is permitted at a minimum recommended 3° incline with the motor at the lowest position.
What vertical head limit does this borehole extraction pump support in deep water wells?
Pumping from subterranean water tables, the ZN8125_03_3A_3R generates a peak dynamic head of approximately 65.6 m to maintain steady discharge flow.
What thread diameter attaches to the top outlet and what is the maximum delivery output?
Connecting the delivery riser to the 125 mm (Rp 5") top outlet allows the ZN8125-03/3A-3R to pump a peak flow volume of approximately 2600 L/Min within standard 8-inch well casings.
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