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Small-scale liquid circulation involving emulsions or lightly contaminated fluids can be handled by the Calpeda CM 20 through its compact centrifugal hydraulic arrangement. The open-impeller design supports utility service duties and auxiliary equipment applications where unrestricted liquid movement is preferred within confined installation spaces.
Operating performance reaches 4.8 m³/h maximum flow with discharge head extending to 12.3 m, supporting balanced low-to-medium pressure liquid handling across compact hydraulic systems. The unit is powered through a 240V single-phase induction motor utilizing 0.25 kW rated output power with operating current of 2.5 A while maintaining rotational speed near 2900 rpm.
Suspended particles up to 4 mm are permitted to pass through the open impeller arrangement without creating excessive internal flow restriction. The centrifugal hydraulic path assists stable circulation behaviour for moderately contaminated liquids under varying service conditions.
Cast iron construction across the hydraulic casing and lantern bracket assembly provides mechanical rigidity during operating service. Shaft sealing relies on carbon ceramic mechanical seal faces combined with NBR elastomer support components, while the motor assembly incorporates capacitor-start operation, internal thermal protection, IP54 enclosure protection, and class F insulation. Liquid temperatures from -10°C to 90°C are supported alongside maximum working pressure up to 6 bar.
FEATURES- Open impeller hydraulic geometry allowing suspended particle passage up to 4 mm
- Compact centrifugal construction suited to confined installation layouts
- Cast iron hydraulic body assisting structural operating durability
- Single-phase 240V induction motor operating near 2900 rpm rotational speed
- Capacitor-start motor configuration with integrated thermal protection system
- Carbon ceramic mechanical sealing arrangement with NBR elastomer support
- Class F insulated motor enclosure with IP54 environmental protection
- Close-coupled pump and motor layout minimizing alignment requirements
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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