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Reliable transfer of municipal sewage and wastewater containing solids is the primary function of the Grundfos S1.80.125.300.4.62H.S.338.G.N.D.513, which is built for permanent submerged installation in centralized sumps. This cast iron unit provides consistent transfer performance in heavy-duty utility networks. It is engineered for service in infrastructure environments with liquid temperatures from 0°C to +40°C.
The pump achieves a maximum head of 46.8 m and a maximum flow of 6600 L/min, powered by a 30 kW 4-pole motor. Operating on a three-phase 415 V supply with a 64 Amp rated current, stable motor operation is maintained during high-capacity transfer cycles. A Y/D starting method is utilized to maintain pumping performance within demanding wastewater infrastructure.
Pumping performance is achieved using a 1-channel cast iron impeller with a 338 mm actual diameter and an 80 mm free passage for managing untreated wastewater. The discharge configuration features a DN 125 outlet with a PN 10 pressure rating to support consistent discharge pressure. This design focuses on high-efficiency transfer while helping to reduce the risk of clogging in discharge piping.
Structural integrity is provided by the EN-GJL-250 cast iron pump housing and motor casing, which protect the internal components in submerged conditions. The unit features a double mechanical SIC shaft seal and SIC-CARBON secondary seal, alongside moisture sensors for motor protection. It is supplied with a 15-metre H07RN-F power cable and is compatible with the Grundfos DN125 auto-coupling system (96782145).
FEATURES
- 1-Channel cast iron impeller with a 338 mm diameter and 80 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 faces and SIC-CARBON secondary barrier protection.
- Integrated moisture sensors and thermal switches for proactive motor protection and monitoring.
- IP68 enclosure suitable for permanent submerged installation in wet wells up to 20 metres deep.
- Supplied with a 15-metre H07RN-F power cable for reliable electrical connection in municipal grids.
- Frame size 62 construction for municipal sewage and wastewater containing solids.
- Compatible with the Grundfos DN125 auto-coupling system (96782145) 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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