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SKU: 97924249
Grundfos MAGNA3 25-40 Cast Iron Single Phase Circulator Pump with Composite Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Specified for surface heating networks and secondary HVAC circuits, the Grundfos MAGNA3 25 40 circulator pump features a canned-rotor construction with G 1 1/2 inch ports. Integrated electronic controls govern fluid movement without external shaft packing. System applications cover commercial heating, process cooling, and heat exchange loops.
Hydraulic performance delivers a maximum head of 4.0 meters and a maximum flow rate of 61.8 L/Min, matching 3.71 m3/h. Powered by a permanent-magnet motor, the unit operates on a 240 V single-phase supply at 50/60 Hz, with power input P1 of 50 W and current draw of 0.46 Amps. Maximum system operating pressure is rated at 16 bar.
Housing construction features a cast iron casing grade EN 1561 EN-GJL-200 enclosing a composite impeller. Internal components incorporate a carbon-fibre rotor can, stainless steel rotor cladding, and bearing plate, running on ceramic bearings. Net weight is 5.11 kg with a 180 mm port length, handling liquid temperatures -10 to 110 °C.
Control features include AUTOADAPT and FLOWADAPT operating modes with integrated differential pressure and temperature sensors. Wireless communication connects via Bluetooth to Grundfos GO Remote software for diagnostics. External interfaces provide two digital inputs, two signal relays, and a 0-10V analog input.
Features
- Energy Efficiency Index (EEI): 0.18 meeting European Union energy performance standards.
- Maximum rotational speed rating: 2880 rpm for continuous hydraulic balancing across system curves.
- Physical shipping package volume and gross weight: 0.015 m3, 5.86 kg for logistics planning.
- Standard regulatory compliance approvals: CE,VDE,EAC,MOROCCO,UKC for international building code conformity.
- Enclosure protection rating: IPX4D moisture resistance rating for commercial equipment rooms.
- Intelligent control regulation: AUTOADAPT, FLOWADAPT, and active FLOWLIMIT operational modes.
- Wireless connectivity: Integrated Bluetooth interface for Grundfos GO Remote application access.
- Casing thermal insulation: Includes clip-on shell insulation covers for system heat retention.
SPECIFICATIONS
| Max Flow | 61.8 L/Min |
| Max Head | 4 m |
| Power | 0.05 kW / 240v |
| Rated Current | 0.46 Amps |
| Suitable For | Underfloor Heating Circulation |
| Body Material | Cast Iron |
| Liquid Temperature | '-10°C to +110°C |
| Inlet Size | 25 mm |
| Outlet Size | 25 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 material and metallurgy protect this cast iron circulator against internal corrosion?
Hydraulic architecture of the MAGNA3 25-40 employs a Cast Iron housing with composite impeller alongside robust internal components to defend against corrosion.
What motor power kilowatt rating and electrical supply voltage energize this variable circulator?
Connecting to commercial power supplies, the Grundfos MAGNA3 25-40 features an electric drive rated at 0.05 kW (50 W) operating on 240 V drawing a rated current of 0.46 Amps.
What maximum working pressure bar rating and liquid temperature range apply to this circulator?
HVAC system boundaries establish that the MAGNA3-25-40 manages working pressures up to 16 bar across temperatures from -10°C to +110°C.
What peak dynamic head elevation can this intelligent circulator overcome against loop friction?
Producing consistent vertical propulsion, the Grundfos MAGNA3 25 40 delivers a peak dynamic head of approximately 4 m.
What maximum delivery flow volume and port diameter are certified for this variable circulator?
Operating through its 180 mm port-to-port G 1 1/2 inch threaded connections, the MAGNA3_25_40 delivers a maximum delivery flow volume of approximately 61.8 L/Min.
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