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Effective sewage transfer in municipal complex drainage requires reliable pumping assets built for high-volume liquid movement. The Grundfos SE1.75.100.150.2.52S.N.51D.A.T Submersible Wastewater Pump is engineered for intensive duty in collection pits and lift stations. This cast iron unit handles contaminated fluids at temperatures up to 40°C, supporting infrastructure protection in large-scale residential and industrial networks. The heavy-duty design facilitates permanent submerged service while maintaining high volumetric throughput in aggressive environments.
Performance is driven by a 15 kW two-pole motor operating on a 415v three-phase supply with a rated current of 28 Amps. This assembly achieves a maximum head of 32 m and a maximum flow of 3186 L/min, ensuring efficient evacuation of effluent and sewage. The unit utilizes a star-delta starting method to manage peak electrical loads and operates at a rated speed of 2966 rpm. Power is distributed through a 15-metre S1BN8-F power cable to facilitate deployment in subsurface networks and deep wastewater handling pits.
The centrifugal hydraulic system utilizes a high-efficiency S-TUBE impeller to manage solids in suspension up to 75 mm. This configuration provides superior clog resistance and ensures reliable wastewater transfer without the risk of internal blockages. By utilizing an S-TUBE design, the pump maintains consistent efficiency over thousands of service hours in municipal collection pits. This hydraulic setup is specifically intended for grey water and sewage transfer where maintaining flow without interruption is critical for facility maintenance.
Mechanical integrity is reinforced by a cast iron pump body and an IP68 enclosure rating for immersion up to 20 m. The motor is protected by a double mechanical shaft seal featuring silicon carbide faces in an oil bath, helping prevent liquid ingress into the motor assembly. This model includes internal moisture sensors and thermistors for real-time monitoring of the Class H insulated motor assembly. Standard DN 100 connections are used for both inlet and outlet to ensure compatibility with standard civil drainage infrastructure.
Features
- High-efficiency S-TUBE impeller manages solids up to 75 mm with significant resistance to clogging and blockages.
- Cast iron pump housing and motor shell provide a rigid structural foundation for submerged installations.
- Double mechanical shaft seal with silicon carbide faces ensures the motor remains protected from contaminated liquid.
- Class H insulated motor assembly includes integrated thermistors and moisture sensors for proactive monitoring.
- Two-pole 15 kW motor operating at 2966 rpm provides the torque required for processing high-volume sewage.
- DN 100 inlet and outlet ports allow for standardized integration into municipal wastewater pipework.
- Integrated cooling jacket supports operational integrity in both dry and submerged mounting configurations.
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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