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When extreme vertical lifts are required to keep deep excavation sites dry, standard pumps simply cannot bridge the gap. The Tsurumi LH311W steps in to conquer these immense elevations, ensuring your foundational works remain free from disruptive water ingress. Its high-head specialization makes it an indispensable asset for large-scale subterranean projects.
This heavy-duty three-phase unit is driven by an 11 kW motor, operating at 415 V with a rated current of 22 Amps. It achieves a remarkable maximum head of 81 m and a substantial maximum flow of 700 L/Min. These specifications highlight its ability to push large volumes of fluid against extreme gravitational resistance without faltering.
Fluid dynamics are managed by dual closed impellers capable of handling 8.5mm solids, ensuring uninterrupted operation even when the water contains granular debris. The top-discharge configuration not only facilitates installation in narrow casings but also guarantees the motor is continuously cooled by the pumped liquid, allowing for safe operation at varying submersion depths.
The mechanical architecture features a cast iron body and a robust 420 stainless steel shaft, supported by a duplex angular contact ball bearing setup. This specialized bearing arrangement effectively absorbs the intense axial thrust generated by high-head pumping. A double-face mechanical seal in an oil chamber provides the ultimate barrier against liquid penetration.
FEATURES
- Mounted back-to-back in the lower section to expertly manage extreme thrust loads and stabilize the shaft.
- Dual configuration designed to maximize vertical lift while resisting wear from suspended sand and grit.
- Vents high casing pressure away from the mechanical seal, protecting vital components from abrasive damage.
- Guarantees continuous lubrication of the mechanical seal faces, dramatically reducing the risk of dry-running failure.
- Directly monitors motor temperature and current, instantly cutting power if hazardous operating conditions arise.
- Includes a zinc anode to protect the cast iron casing from electrochemical degradation in harsh water conditions.
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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