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Stormwater systems and civil drainage infrastructure requiring massive flow transfer rely on the Grundfos S2.100.300.300.4.62E.S.253.G.N.D.513 for submerged installations. This cast iron wastewater pump manages untreated wastewater and sewage containing solids in centralized municipal wet wells. The engineering ensures consistent hydraulic efficiency in environments with liquid temperatures from 0°C to +40°C.
A 30 kW 4-pole motor running at 1482 rpm provides the torque required to achieve 20100 L/min flow and 10.2 m head. Drawing 64 Amps on a three-phase 415 V supply, stable motor operation is maintained during massive flow displacement. This configuration provides reliable pumping performance for volume-intensive drainage networks.
Hydraulic handling is achieved using a 2-channel cast iron impeller with a 253 mm diameter and a 100 mm free passage for managing untreated wastewater. The DN 300 outlet features DIN flange standards and a PN 10 rating to support high-volume transfer. This design focuses on maintaining consistent volume displacement while helping to prevent clogging in large-scale networks.
Structural integrity is provided by an EN-GJL-250 cast iron pump housing and motor casing with double mechanical SIC/SIC-CARBON seals. Safety monitoring is provided by integrated moisture switches and thermal sensors to ensure motor protection in permanent stations. The unit is supplied with a 15-metre H07RN-F power cable and is compatible with the Grundfos DN300 auto-coupling system (96782484).
FEATURES
- 2-Channel cast iron impeller with a 253 mm diameter and 100 mm passage for handling solids.
- EN-GJL-250 cast iron pump housing and motor casing for structural durability in permanent stations.
- Double mechanical shaft seal with SIC primary seal and SIC-CARBON secondary barrier protection.
- Integrated moisture sensors and thermal switches for proactive motor protection and monitoring.
- IP68 enclosure suitable for installation depths up to 20 metres with a PN 10 rated DN300 outlet.
- Supplied with a 15-metre H07RN-F power cable for reliable electrical connection in basins.
- Suitable for high-volume transfer applications in stormwater and wastewater networks.
- 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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