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Municipal wastewater collection systems rely on the Grundfos SL1.80.80.40.4.50B.C for permanent submerged installation in lift stations. This cast iron pump holds CE EN12050-1 approval and is used for pumping untreated wastewater containing large solids. It is designed for handling raw effluents in civil utility networks.
The pump is powered by a 4 kW 4-pole motor operating at 1464 rpm on a 3 x 415V supply with a rated current of 9.6 Amps. It achieves a maximum head up to 16 m and maximum flow up to 2952 L/min. The unit is rated for continuous S1 submerged duty in untreated wastewater between 0°C and 40°C. The motor is cooled by the surrounding pumped liquid during normal submerged operation.
The S-tube impeller is designed for untreated wastewater containing solids up to 80 mm while helping reduce the risk of clogging. Hydraulic connection sizes include a DN 100 inlet and a DN 80 (3") outlet with DIN flange standards. This single-vane design facilitates the conveying of untreated effluents through discharge piping.
Construction features an EN-GJL-250 cast iron pump housing and motor casing with double SIC/SIC mechanical shaft seals. Integrated PTC sensors and moisture sensors are used for seal and motor monitoring. Stator protection is provided by thermal switches in the windings, a 10-metre LYNIFLEX power cable, and an IP68 enclosure rating. The pump is suitable for installation depths up to 7 metres.
FEATURES
- S-tube impeller with 80 mm free passage for processing contaminated fluids without clogging in municipal networks.
- 4 kW 4-pole motor operating at 1464 rpm on a 3 x 415V three-phase supply with 9.6 Amps rated current.
- DN 100 inlet and DN 80 (3") discharge connection for high-volume extraction in municipal wet wells.
- Double mechanical SIC/SIC shaft seals in an oil chamber providing a redundant moisture barrier for the shaft.
- Integrated PTC sensors and moisture detection for advanced motor health and active thermal monitoring.
- Built-in water-in-oil sensor providing early warning of potential fluid ingress into the internal oil chamber.
- 10-metre heavy-duty LYNIFLEX power cable and IP68 rated enclosure for deep submerged service in lift stations.
- CE EN12050-1 certified for use in municipal lift stations and centralized wastewater relocation sites.
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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