Roll over image to zoom
SKU: ZN8125-03/3A-3S
Lowara ZN8125-03/3A-3S 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-3S. 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. The motor is constructed from AISI 316 stainless steel.
Thermal protection for the motor is provided by Class F insulation, with an IP68-rated enclosure enabling submerged operation. The AISI 316 stainless steel motor incorporates water-lubricated thrust bearings. NEMA-compliant flange mounting and coupling dimensions meet standard motor connection requirements.
FEATURES
- AISI 316 stainless steel pump construction 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
- Stainless steel suction strainer is specified at the pump inlet
- 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.
What thread size is featured on the discharge outlet and what maximum flow rate is possible?
Plumbing discharge connects directly through the top 125 mm (Rp 5") port, where the ZN8125-03/3A-3S discharges up to a peak flow of approximately 2600 L/Min inside standard 8-inch well casings.
What construction materials protect this borehole pump against underground chemical attack?
Constructed from high-grade AISI 316 stainless steel, the ZN8125-03-3A-3S resists mineral oxidation and erosion while managing suspended sand up to 100 g/m³.
What are the motor power rating and electrical voltage specifications for this unit?
Electrical specifications for the ZN8125 03 3A 3S require a 18.5 kW motor connection supplied by 380–415 V, 50 Hz, three-phase, drawing approximately 42 A.
Is an internal non-return valve built into this pump and is horizontal orientation supported?
Preventing line drainage during shutdown, the ZN8125_03_3A_3S incorporates an integrated spring-loaded check valve in the discharge head and permits horizontal installation at a minimum recommended 3° incline with the motor lowest.
What maximum vertical elevation can this borehole pump achieve when drawing water from deep wells?
Under full operating conditions, the ZN8125-03/3A-3S achieves a maximum vertical dynamic head of approximately 65.6 m, ensuring strong discharge pressure from deep borehole shafts.
Need help choosing the right pump?
Our team of pump experts are here to help you find the perfect solution for your application.
- Free expert advice
- Pump sizing & system recommendations
- Fast response — call or email us