Feel free to reach out to us!
Find quick answers to common questions
Press & drag to view
Designed for deep-well groundwater supply, agricultural irrigation and town water networks, the 4ZN612/4 is a four-stage radial flow pump end for six-inch submersible installations. Its staged hydraulic arrangement provides the lift required for extracting clean groundwater from deeper borehole systems while maintaining a maximum flow capability of 275 L/Min.
The ZN6 pump end is built in AISI 316 stainless steel, with AISI 316L stainless steel used for the impellers and diffusers. Removable wear rings allow the hydraulic clearances to be serviced, while the rotating shaft is Duplex stainless steel UNS S 31803 and the replaceable coupling is Duplex stainless steel UNS S 32304. This construction is specified for clean water containing suspended sand up to 100 g/m³.
With a C4S submersible motor, the assembly is suitable for operation up to 60°C and can reach a maximum head of 45 metres. Hydraulic performance is specified to EN ISO 9906 Grade 3B, with water discharged through the Rp 2 1/2” (65 mm) connection. The pump end uses a standard 4-inch NEMA motor connection and permits maximum immersion of 300 metres when used with a C4S motor.
Installation is supported by a microcast ASTM CF-8M (AISI 316 cast) discharge head and lower support, with an integrated stainless steel non-return valve helping manage backflow within the discharge assembly. Safety-hook holes are incorporated into the discharge head for lowering and securing the pump end during borehole installation.
FEATURES
- Removable wear rings make the radial hydraulic stages serviceable during maintenance.
- Duplex UNS S 31803 shaft provides the rotating assembly with the specified mechanical strength.
- AISI 316L impellers and diffusers provide the specified stainless-steel hydraulic construction.
- The Duplex UNS S 32304 coupling provides a replaceable connection for the motor assembly.
- AISI 316L tie rods and cable guard support the pump-end construction and installation arrangement.
- The integrated stainless steel non-return valve provides backflow control at the discharge.
- The ASTM CF-8M microcast discharge head and lower support provide the specified structural arrangement for borehole installation.
* Submersible motor sold separately - requires coupling and 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.
Can’t find your answer?
Recently viewed
Last seen items
Search
You May Like
- Choosing a selection results in a full page refresh.
- Opens in a new window.