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Borehole installations for groundwater supply and mine dewatering require pumps that sustain high flow rates under continuous operation. The Lowara ZN646/5-3N delivers 1000 L/Min from its 6-inch wet end, with a 6-inch motor and NEMA coupling configuration that provides ample power for demanding applications. Water is transferred through the radial flow stages efficiently across the operating range.
Corrosion resistance is achieved through AISI 316 stainless steel construction across all wetted surfaces, protecting against aggressive groundwater and abrasive wear. The impeller and diffuser arrangement incorporates a removable wear ring for simplified maintenance, while the integrated non-return valve prevents backflow during shutdown. The suction strainer limits suspended sand ingress to 100 grams per cubic metre, preserving internal clearances.
Driven by a 7.5 kW three-phase motor at 415V, the pump draws 17 Amps and achieves 51.7 metres of shut-off head. Flow capacity reaches 1000 L/Min through the 80 mm discharge port. Hydraulic performance complies with EN ISO 9906 Grade 3B tolerances for consistent output.
Class F insulation with IP68 rating supports immersion depths to 350 metres. The Duplex stainless steel shaft provides mechanical strength, while AISI 316L tie rods offer structural integrity. Safety hook holes on the discharge head facilitate secure installation, and NEMA motor compatibility simplifies assembly.
Z = 6" wet end with 6" Lowara L6C motor
FEATURES- Delivery port incorporates integrated safety hook attachment points
- Drive shaft is manufactured from Duplex stainless steel UNS S 31803
- External tie rods are constructed from AISI 316L stainless steel
- Supplied with a replaceable coupling component for standard maintenance
- Intake strainer is fabricated from AISI 316L stainless steel
- Lower motor support matches standard NEMA mounting dimensions
* 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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