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Borehole installations for agricultural irrigation and industrial pressure boosting demand pumps that combine high flow capacity with corrosion resistance. The Lowara 4ZN646/3-3 delivers 1000 L/Min from its 6-inch wet end, with a 4-inch motor connection that simplifies integration into existing systems. The microcast stainless steel housing provides structural integrity for continuous submerged operation.
Every wetted component is fabricated from AISI 316 stainless steel, offering excellent resistance to the corrosive effects of groundwater and suspended abrasives. The hydraulic stages incorporate a removable wear ring for maintenance convenience, while the integrated stainless steel non-return valve prevents reverse flow. The suction strainer limits sand ingress to 100 grams per cubic metre, protecting internal clearances from premature wear.
Operating on a 415V three-phase supply, the 4 kW motor draws 10.2 Amps and delivers 31 metres of shut-off head. Flow capacity reaches 1000 L/Min through the 80 mm discharge outlet. Hydraulic performance meets EN ISO 9906 Grade 3B tolerances for reliable operation across varying duty points.
Immersion depths up to 300 metres are supported by Class F insulation and IP68 protection. The Duplex stainless steel shaft and AISI 316L tie rods provide mechanical durability. Safety hook attachment points on the discharge head facilitate secure installation and retrieval, while NEMA motor compatibility simplifies assembly.
4Z = 6" wet end with 4" Lowara motor
FEATURES- Discharge head features pre-drilled holes for safety hook attachment
- Shaft utilizes Duplex stainless steel UNS S 31803 metallurgy
- Bracing tie rods are built from AISI 316L stainless steel
- Mechanical coupling component is replaceable for standard servicing
- Suction strainer uses AISI 316L stainless steel mesh
- Flange assembly conforms to standard NEMA motor connections
* 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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