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SKU: 99221334
Grundfos MAGNA1 50-80 F Cast Iron Variable Speed Circulator Pump for Mixing Loops with Composite Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
The Grundfos MAGNA1 50-80 F circulator pump combines a 50 mm flanged connection with high flow and 4.574 m of head to serve central heating distribution manifolds, chiller secondary headers, and district heating stations. Its internal inverter dynamically balances pressure across variable-flow circuits.
Constructed with an EN-GJL-200 cast iron housing measuring 240 mm port-to-port, the unit incorporates an engineered composite impeller and maintenance-free canned rotor. It operates at working pressures up to 10 bar and fluid temperatures between -10°C and 110°C, with a net weight of 17.4 kg.
The single-phase 230-240 V ECM motor has a maximum power input (P1) of 21 W to 331 W while electrical power input (P1) modulates between 21 W and 331 W with a maximum current of 1.48 A. Peak hydraulic output provides maximum a flow rate of 16.03 m³/h (267 L/Min) against a maximum head of 4.574 m through DN 50 DIN flanged connections.
A single push-button interface configures nine operating modes including proportional pressure, constant pressure, and fixed speed curves. The motor features Class F insulation, an IPX4D splash-proof housing, an EEI of 0.19, and fault alarm relay terminals.
FEATURES
- Flow capacity of 267 L/Min and 4.574 m of head satisfy large commercial plant requirements
- DN 50 four-bolt flange configuration matches EN 1092-2 commercial piping specs
- Permanent magnet motor technology delivers an Energy Efficiency Index of 0.19
- Operating power self-adjusts between 21 W and 331 W according to thermal demand
- Cast iron EN-GJL-200 pump body built for 10 bar maximum system pressure
- Composite impeller resists erosion in closed water and glycol loops
- Integrated fault relay contact and remote digital run/stop terminals for BMS
SPECIFICATIONS
| Max Flow | 267 L/Min |
| Max Head | 8 m |
| Power | 0.25 kW / 240v |
| Rated Current | 1.48 Amps |
| Suitable For | Flanged Large Heating Distribution Loops |
| Body Material | Cast Iron |
| Liquid Temperature | '-10°C to 110°C |
| Inlet Size | 50 mm |
| Outlet Size | 50 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.
Regarding fluid thresholds, what temperature span and operating pressure govern this circulator?
The Grundfos MAGNA1 50-80 maintains complete structural and hydraulic integrity across media temperatures spanning -10°C to 110°C.
What maximum dynamic head elevation does this large flanged circulator achieve?
Overcoming line friction across building heating pipework, the MAGNA1 50-80 achieves a peak dynamic head of approximately 8 m.
What peak circulating volume in liters per minute does this heavy flanged circulator provide?
Maintaining steady hydronic delivery, the MAGNA1-50-80 reaches a maximum flow rating of approximately 267 L/Min.
What material alloy is selected for the pump casing and internal fluid channels?
The MAGNA1 50 80 integrates a robust Cast Iron volute and an aerodynamic Composite Impeller for quiet, vibration-free circulation.
Regarding electrical requirements, what wattage and operating amperage does this circulator draw?
Operating with low electrical demand, the MAGNA1/50/80 consumes 0.25 kW / 240v and requires a current feed of 1.48 Amps.
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