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Municipal water supply and agricultural irrigation systems benefit from the Lowara 4ZN612/11-3, a 5.5 kW radial flow pump delivering 124.7 metres of head. Its 6-inch wet end, constructed entirely from AISI 316 stainless steel, provides exceptional corrosion resistance for demanding borehole applications. The compact 142 mm diameter fits standard casings.
The 415V three-phase motor draws 13.7 Amps and achieves 275 L/Min maximum flow. Hydraulic performance conforms to EN ISO 9906 Grade 3B standards. The 65 mm discharge port connects to standard industrial pipework, while the integrated non-return valve prevents water column backflow.
AISI 316 stainless steel across all wetted parts protects against aggressive groundwater chemistry. The suction strainer limits sand ingress to 100 g/m3, while the radial flow impeller includes a removable wear ring for extended service life. The replaceable coupling simplifies maintenance without pump removal.
Weighing 50 kg, the pump includes microcast stainless steel head and motor support components. Safety hook holes on the discharge head allow secure lowering. Maximum liquid temperature is 60°C, and the pump is compatible with both C4S and L6W motor series.
FEATURES
- Duplex stainless steel UNS S 31803 drive shaft provides high strength
- AISI 316L stainless steel tie rods offer corrosion-resistant bracing
- Dedicated shaft sleeves protect rotating elements from abrasion
- ASTM CF-8M cast stainless steel lower motor support base
- EPDM elastomers ensure dependable fluid sealing performance
- PTFE and Graphite thrust bearings manage axial thrust loads
- ErP compliant with MEI ≥ 0.40 efficiency index
* 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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