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This submersible pump is designated as 50 DS 53.7 from the Model DS pump range. It is designed for sump drainage and stormwater removal for cellar draining, utility pits, and rainwater collection systems. The system is suitable for quick discharge connector systems and standard freestanding installations. It is suitable for guide rail auto-coupling and standard freestanding installations.
Constructed from cast iron casing, cast iron impeller, and 304 stainless steel motor frame, with 403 stainless steel shaft. The motor assembly is enclosed within the pump housing. The semi-open impeller, measuring 50 mm, is designed for clear wastewater containing small non-abrasive suspended solids. It operates in liquids up to 40°C.
The motor operates on a three-phase 415v electrical supply with a power rating of 3.7 kW. The nominal current rating is 7.8 Amps. The pump delivers a maximum head of 36 metres and a maximum flow rate of 700 L/Min through a discharge outlet diameter of 50 mm.
Electrical protection conforms to Class F insulation standards with an IP68 enclosure rating. The unit operates at installation depths up to 8 metres below the liquid surface. A double mechanical seal in an oil chamber is used for shaft sealing. The unit uses direct on line starting with high-speed 2-pole motor rotation.
Features
- Power supply cable length is 10 metres of rubber insulated conductor.
- The operating speed is 2890 RPM for high-head water transfer.
- Construction includes a suction strainer to screen larger particles.
- Wetted assembly fasteners are composed of 304 stainless steel.
- Equipped with turbine oil VG32 lubrication in the seal chamber.
- Rated for manual operation in sump drainage setups.
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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