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The Calpeda NMXM 25/70B is configured for clean water movement in compact installations where single-phase operation and stainless steel hydraulic construction are required. Its close-coupled centrifugal layout supports operation with liquids that are non-aggressive toward AISI 304 stainless steel materials, making the pump suitable for domestic systems, irrigation duties, garden water movement, civil circulation applications, and general utility service installations operating under continuous-duty conditions.
Hydraulic output reaches a maximum head of 18.1 m with flow rates extending to 5.4 m³/h. The pump operates using a 230V single-phase induction motor rated at 0.55 kW with maximum power input of 1 kW and operating current of 4.5 A. Running speed remains approximately 2900 rpm through a two-pole motor configuration, supporting balanced hydraulic transfer and stable circulation performance across varying operating demand. ISO 228/1 threaded hydraulic connections simplify installation into compact utility pipe systems.
Clean liquid movement is controlled through a closed impeller arrangement designed for smooth transfer characteristics with non-abrasive fluids. Stainless steel construction is used throughout the casing, impeller, shaft, and casing cover to support corrosion resistance and hydraulic consistency during extended operating periods. Because the motor shaft is directly connected to the hydraulic section, installation complexity and alignment requirements are reduced compared with separately coupled pump arrangements.
Ceramic alumina and carbon mechanical seal faces operate together with EPDM elastomer sealing components to support dependable sealing performance. The pump is suitable for liquid temperatures ranging from -10°C to +90°C with maximum permissible working pressure up to 10 bar. Motor construction includes class F insulation together with IP54 enclosure protection, while the integrated thermal protector incorporated into NMXM single-phase models provides additional operating safety. Approximate unit weight is 10.7 kg.
FEATURES- 230V single-phase motor configuration for standard electrical supply compatibility
- Direct-coupled centrifugal layout reducing installation footprint and alignment adjustments
- Closed impeller geometry developed for smooth transfer of clean non-abrasive liquids
- AISI 304 stainless steel hydraulic components throughout the wetted section
- Integrated thermal protector supporting additional motor operating protection
- ISO 228/1 threaded suction and discharge ports for utility pipe integration
- Ceramic alumina/carbon mechanical seal arrangement with EPDM elastomer elements
- IP54 motor enclosure with class F insulation and approximate 2900 rpm operation
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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