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SKU: 99221216
Grundfos MAGNA1 25-40 Cast Iron Variable Speed Circulator Pump for Mixing Loops with Composite Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Engineered for low-energy variable circulation, the Grundfos MAGNA1 25-40 operates across heating mixing loops, air conditioning circuits, and ground-source heat pump systems. It features an integrated operating panel and frequency converter that automatically matches pump speed to varying thermal loads.
A cast iron EN-GJL-200 pump housing with a 180 mm port-to-port dimension encloses a composite impeller and maintenance-free canned rotor. The pump body is rated for 10 bar maximum system pressure and accommodates fluid temperatures from -10°C to 110°C, with an overall weight of 4.41 kg.
Driven by a permanent magnet motor with a maximum power input (P1) of 9 W to 56 W, electrical power input (P1) modulates between 9 W and 56 W with a maximum current draw of 0.45 A on a 1 x 230-240 V supply. The hydraulic assembly produces up to 4.24 m³/h \(71 L/Min\) against a maximum head of 2.875 m through 1 1/2 inch threaded connections.
Nine selectable control settings include proportional pressure curves, constant pressure curves, and fixed constant curve speeds. The unit achieves an Energy Efficiency Index (EEI) of 0.20, incorporates Class F insulation with an IPX4D enclosure, and provides a digital start/stop input with fault relay output.
FEATURES
- Permanent magnet motor technology achieves an Energy Efficiency Index (EEI) of 0.20
- Nine control modes include three proportional pressure, three constant pressure, and three fixed speeds
- Power consumption self-modulates from 9 W to 56 W based on system demand
- Cast iron EN-GJL-200 housing rated for 10 bar maximum operational pressure
- Composite impeller provides chemical corrosion resistance in closed hydronic loops
- Digital start/stop input and fault alarm relay output enable building automation integration
- Standard 180 mm port-to-port length with 1 1/2 inch threaded connections
SPECIFICATIONS
| Max Flow | 62 L/Min |
| Max Head | 4 m |
| Power | 35 W / 240v |
| Rated Current | 0.45 Amps |
| Suitable For | Mixing Loops and Heating Surfaces |
| Body Material | Cast Iron |
| Liquid Temperature | '-10°C to 110°C |
| Inlet Size | 40 mm |
| Outlet Size | 40 mm |
| Warranty | 24 Months |
Warranty & Returns
All products supplied by Foundation Pumps are covered by a minimum 12-month warranty unless otherwise stated. Some brands may offer longer manufacturer warranties. Warranty covers manufacturing defects, faulty materials and workmanship under normal use.
- Products must be installed correctly and in accordance with the manufacturer’s instructions.
- Warranty does not cover incorrect installation, misuse, dry running, normal wear and tear, unauthorised repairs or damage caused by external factors.
- Proof of purchase, photos, videos and installation details may be requested when assessing a warranty claim.
- The customer is responsible for returning the product to Foundation Pumps or the nominated service centre unless otherwise agreed.
- Removal, reinstallation, labour and associated site costs are generally the customer’s responsibility unless required under Australian Consumer Law.
- Change-of-mind returns may be accepted within 30 days provided the product is unused, uninstalled and returned in its original packaging.
- Customers are responsible for return freight costs for change-of-mind returns.
- Restocking fees may apply to special-order, bulky or non-stocked products.
- Used, installed or specially ordered products may not be eligible for change-of-mind returns.
- If a product arrives damaged or faulty, please contact Foundation Pumps as soon as possible so we can assist with the appropriate repair, replacement or refund.
Your rights under Australian Consumer Law are not affected.
What casing metallurgy and material construction protect this compact heating circulator?
Domestic radiator circuit reliability on the MAGNA1 25-40 is governed by a heavy-duty Cast Iron housing with composite impeller with smooth hydraulic flow paths.
What motor power kilowatt rating and electrical supply voltage energize this compact pump?
Connecting to domestic single-phase supplies, the Grundfos MAGNA1 25-40 utilizes an efficient motor rated at 0.035 kW (35 W) on 240 V drawing a rated current of 0.45 Amps.
What maximum working pressure bar rating and liquid temperature span apply to this compact pump?
Sealed residential circuit guidelines allow the MAGNA1-25-40 to operate safely at system pressures up to 10 bar with liquids from -10°C to 110°C.
What maximum dynamic head elevation can this compact cast iron circulator overcome?
Overcoming system friction in residential hydronic heating, the Grundfos MAGNA1 25 40 produces a maximum dynamic head of approximately 4 m.
What maximum delivery flow volume and threaded pipe connection dimensions define this unit?
Discharging through domestic heating plumbing via 180 mm port-to-port G 1 1/2 inch threaded connections, the MAGNA1_25_40 achieves a maximum circulating flow rate of approximately 62 L/Min.
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