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Deep well water extraction and mine dewatering require exceptional head capability, which the Lowara 4ZN612/15-3 provides with its 170.1 metres of shut-off head. This 7.5 kW radial flow pump features all-AISI 316 stainless steel construction and a 6-inch wet end, designed for demanding lift applications where reliability is critical. The 142 mm diameter fits standard boreholes.
The three-phase 415V motor draws 18.7 Amps and delivers 275 L/Min maximum flow. Performance meets EN ISO 9906 Grade 3B tolerances. The 65 mm discharge port accommodates standard piping, while the integrated non-return valve prevents water column backflow.
Corrosion resistance from AISI 316 stainless steel protects against aggressive groundwater chemistry, while the suction strainer limits sand ingress to 100 g/m3. The radial flow impeller includes a removable wear ring for extended service intervals. The replaceable coupling allows component access without full pump removal.
Weighing 58 kg, the pump features microcast stainless steel head and motor support components. Safety hook holes on the discharge head secure the unit during installation. Maximum liquid temperature is 60°C, and the pump is compatible with both C4S and L6W motor configurations.
FEATURES
- Duplex stainless steel UNS S 31803 drive shaft ensures torsional strength
- AISI 316L stainless steel tie rods provide corrosion-resistant bracing
- Shaft sleeves protect rotating assemblies from abrasive wear
- ASTM CF-8M cast stainless steel lower motor support base
- EPDM elastomers deliver reliable fluid sealing integrity
- PTFE and Graphite thrust bearings manage axial loads effectively
- MEI ≥ 0.40 compliant with ErP regulations
* Motor and pump supplied separately - requires assembly
FAQs
General Product FAQs
1. How do I choose the right pump for my setup?
Selecting the correct pump depends on your required flow (L/min), total head (vertical lift + friction loss), and power source. If you're unsure, contact our team and we’ll size the right system for you.
2. Do you offer support with system design or setup?
Yes — we provide expert advice to help you choose, install, and optimise your pump system. Whether it's a simple setup or a custom solution, we’re here to help.
3. Do you offer complete pump solutions or just products?
We don’t just sell pumps — we provide complete solutions. From accessories and control systems to full packaged setups, we can supply everything required to get your system running efficiently.
Shipping & Availability
1. Do you offer Australia-wide shipping?
Yes — we ship across Australia. Bulk or oversized orders may incur additional freight charges otherwise we offer free shipping over $100*
2. How long does delivery take?
Orders are typically shipped within 1–2 business days, with delivery taking approximately 2–7 days depending on your location.
3. What courier or freight companies do you use?
We work with a range of trusted carriers including Australia Post, StarTrack, TNT, and other national freight providers depending on the size and location of your order. This allows us to ensure fast, reliable delivery across Australia, including regional and remote areas.
Warranty & Support
1. Do your pumps come with a warranty?
Yes — all products are backed by manufacturer warranties. Warranty periods vary depending on the brand and product type.
2. What support do you offer after purchase?
We provide ongoing support including:
- Installation advice
- Troubleshooting
- Spare parts supply
- System upgrades
3. What is the warranty process if something goes wrong?
If you experience an issue, simply contact our team with your order details and a description of the problem. We’ll guide you through troubleshooting and, if required, arrange repair, replacement, or manufacturer assessment in line with warranty terms.
Why choose Foundation Pumps?
1. Why choose Foundation Pumps over other suppliers?
We focus on supplying proven, high-quality pump solutions backed by real industry knowledge. Unlike general resellers, we understand how these systems perform in the field and provide honest, practical advice to ensure you get the right solution the first time.
2. Do you offer expert advice before and after purchase?
Yes — we support you at every stage, from selecting the right pump through to installation and ongoing use. Our team is available to assist with sizing, troubleshooting, and system optimisation whenever you need it.
3. Do you stock trusted brands and quality products?
We carefully select and supply pumps from reputable manufacturers known for reliability and performance. Our range includes both industry-leading brands and high-value alternatives that meet Australian standards and conditions.
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