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Internal fluid velocity paths and hydraulic configuration for the Grundfos SL.100.170.2.52S.N.51D.A.T utilize an Open S-Tube design to manage contaminated liquids. This submersible pump addresses the circulation stability required in municipal collection pits and sewage transfer duties. The assembly is optimized for continuous wastewater transfer in environments prone to varying fluid ingress and temperatures up to 40°C. Its architectural build ensures reliable performance in subsurface drainage networks where reliable solids passage is required.
Hydraulic capacity is driven by a 17 kW motor on a 415v three-phase supply, achieving a maximum head of 43.2 m and a maximum flow of 4,500 L/min. The electrical system operates with a rated current of 33 Amps, maintaining torque and hydraulic stability throughout the service cycle. A star-delta starting method is utilized to minimize electrical peak loads during activation in drainage stations. Power is distributed effectively to support discharge requirements in municipal lift stations.
The Open S-Tube centrifugal impeller facilitates the movement of solids in suspension without internal clogging that compromises volumetric throughput. This configuration handles wastewater, maintaining efficiency throughout thousands of operating hours. By creating an s-tube flow within the pump housing, the design reduces internal wear and vibration for the rotating assembly. The impeller setup is intended for sewage transfer applications in municipal collection systems.
Mechanical construction features a heavy-duty cast iron pump housing and motor shell with an IP68 protection rating for depths up to 20 m. Longevity is anchored by a double mechanical shaft seal featuring silicon carbide faces and an oil bath for motor insulation. This model includes internal thermistors and moisture sensors to facilitate monitoring of the motor assembly. The casting includes DN 100 inlet and outlet connections for integration into standard wastewater infrastructure.
Features
- Open S-Tube impeller configuration facilitates the passage of large solids through the pump housing to maintain hydraulic throughput.
- Heavy-duty cast iron housing and motor shell provide the structural rigidity required for permanent submerged installations.
- Primary silicon carbide shaft seal and secondary carbon/silicon carbide seal in an oil bath protect the motor from liquid ingress.
- Internal thermistors and moisture sensors provide real-time monitoring to safeguard the electrical assembly against overheating.
- Maximum head performance of 43.2 m allows for wastewater discharge in high-elevation municipal applications.
- DN 100 inlet and DN 100 outlet ports are sized for standard connection to wastewater collection pits and infrastructure.
- IP68 enclosure rating ensures the motor remains protected during permanent immersion in wastewater environments.
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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