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Collection systems and large-scale drainage tasks are the focus of the Grundfos SL1.100.150.55.4.50B.C, certified under CE EN12050-1. This cast iron submersible pump is built for permanent installation in civil infrastructure wet wells. It is intended for handling raw wastewater containing large solids in municipal and industrial collection networks.
A 5.5 kW 4-pole motor running at 1463 rpm on a 3 x 415V supply with a rated current of 10.9 Amps powers the pump. It achieves a maximum head up to 16.6 m and maximum flow up to 4332 L/min. The motor is designed for continuous S1 duty in untreated wastewater containing solids at temperatures up to 40°C. The motor is cooled by the surrounding pumped liquid during normal submerged operation.
Handling of untreated wastewater is facilitated by an S-tube impeller providing a 100 mm free passage while helping reduce the risk of clogging. The unit is equipped with a DN 150 inlet and a 6" (150 mm) outlet with DIN flange connections. This single-vane hydraulic path supports the transfer of raw effluents in demanding collection systems.
Built with an EN-GJL-250 cast iron pump housing and motor casing, the unit includes a double SIC/SIC mechanical shaft seal system. Integrated PTC sensors and moisture sensors are used for seal and motor monitoring. Protection also includes thermal switches in the windings, 10 metres of LYNIFLEX power cable, and an IP68 enclosure rating for submerged service. The pump is suitable for installation depths up to 7 metres.
FEATURES
- S-tube impeller with 100 mm free passage for processing wastewater with high solids content.
- 5.5 kW 4-pole motor operating at 1463 rpm on a 3 x 415V three-phase supply with 10.9 Amps rated current.
- DN 150 inlet and 6" (150 mm) discharge connection for efficient large-scale fluid relocation.
- Double mechanical SIC/SIC seals in an oil chamber for redundant moisture defence for the motor.
- Integrated PTC sensors and moisture detection for advanced motor health and active thermal monitoring.
- Built-in thermal switches within the stator windings for automatic protection against electrical damage.
- 10-metre rugged LYNIFLEX power cable and IP68 enclosure for reliable operation in deep wet wells.
- CE EN12050-1 certified for use in wastewater collection networks and civil infrastructure drainage systems.
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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