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Wastewater infrastructure networks requiring high-capacity transfer rely on the Grundfos S2.100.300.400.4.62E.S.281.G.N.D.513 for heavy-duty submerged service in centralized sumps. This cast iron pump handles raw sewage and municipal wastewater containing solids, providing consistent hydraulic displacement in large-scale stations. It is designed for service in utility grids with liquid temperatures from 0°C to +40°C.
The unit achieves a maximum flow rate of 21600 L/min and a maximum head of 17 m using a 41 kW 4-pole motor. Operating at 1464 rpm on a 415 V supply with 82 Amps, stable motor operation is maintained during heavy-volume pumping cycles. This setup provides the required hydraulic force for massive flow displacement in drainage networks.
Pumping performance is achieved using a 2-channel cast iron impeller with a 281 mm diameter and a 100 mm free passage for managing untreated wastewater containing solids. The DN 300 outlet features DIN flanges and a PN 10 rating to support high-volume transfer. This design reduces clogging risks while moving contaminated wastewater through municipal collection systems.
Structural integrity is provided by the EN-GJL-250 cast iron casing and double mechanical shaft seals with SIC/SIC-CARBON faces. Protection features include integrated leakage sensors and moisture switches for proactive motor health monitoring in permanent stations. The unit includes a 15-metre H07RN-F power cable and is rated IP68 for installation depths up to 20 metres.
FEATURES
- 2-Channel cast iron impeller with a 281 mm diameter and 100 mm passage for handling solids.
- EN-GJL-250 cast iron pump housing and motor casing for structural integrity in utility grid systems.
- Double mechanical shaft seal with SIC primary faces and SIC-CARBON secondary seal barrier.
- Integrated moisture switch and thermal sensors for proactive motor protection and monitoring.
- IP68 enclosure suitable for installation depths up to 20 metres with a PN 10 rated discharge.
- Supplied with a 15-metre H07RN-F power cable for reliable electrical connection in wet wells.
- Frame size 62 construction for massive flow transfer in municipal wastewater systems.
- Compatible with the Grundfos DN300 auto-coupling system (96782484) for simplified maintenance access.
IMPORTANT: Bulk freight charges apply. Please contact us for a freight quote before ordering.
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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