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Cast iron housing and motor shell construction provide the structural foundation for the Grundfos SL.100.150.2.52S.N.51D.A.T submersible pump. This heavy-duty unit addresses the requirements of sewage pumping and municipal networks where contaminated wastewater is present. The system handles liquids with temperatures up to 40°C in both dry and submerged installation environments. Reliable wastewater transfer and effluent pumping are maintained by this assembly in subsurface collection pits and drainage stations.
Hydraulic performance is provided by a 15 kW motor on a 415v three-phase supply, generating a maximum flow of 4,314 L/min. This model achieves a maximum total head of 39.2 m. Operating with a rated current of 29 Amps, the unit maintains consistent torque and circulation characteristics during high-load cycles. Rapid evacuation is achieved through the DN 100 discharge port to protect infrastructure in gravity drainage networks.
Internal centrifugal design utilizes a high-efficiency Open S-Tube impeller to facilitate the passage of solids in suspension. This configuration handles wastewater, maintaining volumetric efficiency throughout prolonged service cycles. By utilizing the s-tube flow principle, the design reduces internal wear and vibration for the rotating assembly during continuous operation. The hydraulic setup facilitates the movement of contaminated fluids through municipal lift stations and drainage pits.
Mechanical stability is reinforced by an IP68 enclosure rating and a double mechanical shaft seal arrangement for motor protection. The primary silicon carbide seal and secondary silicon carbide/carbon seal in an oil bath insulate the motor from liquid ingress. This model features integrated moisture sensors and thermistors for early fault detection in submerged conditions. The architectural casting includes a 273 kg net weight for firm positioning in deep subsurface wastewater infrastructure.
Features
- Open S-Tube impeller design enables the passage of solids through the pump casing without compromising volumetric hydraulic throughput.
- Cast iron construction of the housing and motor shell provides a stable and rigid foundation for permanent site installations.
- Double mechanical shaft seal in an oil bath with silicon carbide faces ensures the motor remains shielded from contamination.
- IP68 protection rating allows for permanent immersion in wastewater collection pits at depths up to 20 metres.
- Integrated thermal protection and moisture sensors facilitate proactive maintenance for the electrical assembly.
- Maximum operating pressure of 8 bar supports integration into large-scale pressurized sewage collection networks.
- Rated speed of 2,966 rpm ensures consistent fluid velocity for high-head wastewater handling applications.
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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