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SKU: 97924298
Grundfos MAGNA3 65-120-F Cast Iron Single Phase Circulator Pump with Composite Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Engineered for fluid transfer in commercial heating circuits and cooling installations, the Grundfos MAGNA3 65 120 F canned-rotor circulator pump operates without mechanical shaft seals. Featuring an integrated control panel, it uses a glandless canned-rotor structure. Applications include mixing loops, heating surfaces, air conditioning, and ground-source loops, via DIN DN 65 ports.
Hydraulic performance delivers a maximum head of 12.0 meters and a maximum flow rate of 429.3 L/Min, matching 25.76 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 763 W and current draw of 3.45 Amps. Maximum system operating pressure is rated at 10 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 21.5 kg with a 340 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): 0.17 meeting European Union energy performance standards.
- Maximum rotational speed rating: 3960 rpm for continuous hydraulic balancing across system curves.
- Physical shipping package volume and gross weight: 0.057 m3, 23.7 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 | 429.3 L/Min |
| Max Head | 12 m |
| Power | 0.76 kW / 240v |
| Rated Current | 3.45 Amps |
| Suitable For | Geothermal Loop Circulation |
| Body Material | Cast Iron |
| Liquid Temperature | '-10°C to +110°C |
| Inlet Size | 65 mm |
| Outlet Size | 65 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 working pressure bar limit and system fluid temperature range apply to this circulator?
Positioned within central plant manifolds, the MAGNA3 65-120-F operates at working pressures up to 10 bar in fluids from -10°C to +110°C.
What maximum dynamic head does this commercial circulator sustain against loop resistance?
Discharging heating liquid across high-elevation lines, the Grundfos MAGNA3 65-120-F provides a maximum dynamic head of approximately 12 m.
How much delivery flow rate does this large port circulator discharge across hydronic headers?
Directing circulating streams across plant skids, the MAGNA3-65-120-F reaches a peak delivery flow volume of approximately 429.3 L/Min connecting to DN 65 flanged connections.
What material composition and cast iron metallurgy are featured on this high capacity unit?
Hydronic heating resilience is achieved on the Grundfos MAGNA3 65 120 F through a Cast Iron housing with composite impeller and wear-resistant carbon-thrust bearings.
What electrical specifications, motor kilowatt rating, and operating current govern this pump?
Driven by precision electrical mechanics, the MAGNA3_65_120_F utilizes a motor rated at 0.76 kW (760 W) operating on 240 V drawing a rated current of 3.45 Amps.
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