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Drainage of flooded rooms and tanks and extraction of water from ponds, streams or pits are managed by the Calpeda GXR 12-20. This three-phase submersible pump is designed for rainwater collection where continuous duty is required. It handles clean water containing suspended solids up to 12 mm and liquid temperatures up to 40°C in the standing position.
Operating on a 415v three-phase supply, the 1.5 kW motor delivers a powerful 500 L/min maximum flow rate and reaches a maximum head of 18.4 m. The 2-pole induction motor draws 4.3 Amps and is cooled by the pumped water passing between the motor jacket and external jacket. This thermal management system supports safe operation during partial submersion.
Hydraulic performance is produced by an open single impeller configuration that enables the passage of suspended solids up to 12 mm without compromising flow. The vertical delivery port is ISO 228 G 1 1/2 compatible, and the base of the unit features an integrated filter to protect the hydraulic components. Manual operation allows for drainage down to a residual water level of just 15 mm.
Construction features an external jacket, motor jacket, and filter manufactured from chrome-nickel stainless steel AISI 304. Sealing is managed by a double shaft seal with an oil chamber containing oil for food and pharmaceutical machinery. The motor features a double impregnation humidity-proof dry winding and is suitable for immersion depths up to 5 meters.
FEATURES
- Manufactured using AISI 304 stainless steel for the pump casing, impeller, and filter to ensure maximum service life.
- Motor sealing is achieved through a double shaft seal with an integrated oil chamber for enhanced protection.
- Lubrication for the double shaft seal is provided by oil rated for food and pharmaceutical machinery use.
- Three-phase 415v 2-pole induction motor is designed for efficient drainage and water transfer applications.
- The pumped liquid dissipates motor heat by circulating through the external jacket, facilitating safe partial immersion.
- Open impeller design in chrome-nickel steel handles clean water with suspended solids up to a diameter of 12 mm.
- Double impregnation humidity-proof dry winding ensures motor reliability during continuous submerged service.
- Rated for IP X8 protection, allowing for permanent installation at immersion depths of up to 5 meters.
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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