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Providing maximum head in the 25 mm threaded class, the Grundfos MAGNA1 25-120 circulator pump meets the requirements of solar thermal loops, geothermal heat exchangers, and tall hydronic heating risers. Its internal frequency converter adjusts motor speed to match variable heating and cooling demands.
The 180 mm port-to-port casing is manufactured from EN-GJL-200 cast iron, housing a engineered composite impeller and canned rotor motor. Designed for 10 bar operational pressures and fluid temperatures between -10°C and 110°C, the pump has a net weight of 4.39 kg.
The 1-phase 230-240 V ECM motor has a maximum power input (P1) of 8 W to 188 W while electrical input power (P1) operates between 8 W and 188 W with a maximum current of 1.51 A. Peak hydraulic output reaches a flow rate of 5.75 m³/h (96 L/Min) and a maximum head of 12 m across 1 1/2 inch threaded connections.
Nine control curves are selectable directly on the front panel, providing proportional pressure, constant pressure, and fixed speed operation. Features include an EEI rating of 0.20, Class F insulation, an IPX4D housing, and integrated fault relay terminals.
FEATURES
- Generates 12 m maximum head for demanding high-resistance hydronic circuits
- Permanent magnet motor technology delivers an Energy Efficiency Index of 0.20
- Self-modulating power consumption ranges from 9 W to 188 W based on load
- Cast iron EN-GJL-200 housing built for 10 bar maximum working pressure
- Engineered composite impeller offers chemical resistance in glycol circuits
- Fault relay contact and digital run input enable automated building integration
- 180 mm installation length fits standard 1 1/2 inch threaded union connections
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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