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SKU: 99221213
Grundfos MAGNA1 25-80 Cast Iron Variable Speed Circulator Pump for Heat Pump Systems with Composite Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Targeting systems with higher pipe resistance, the Grundfos MAGNA1 25-80 circulator pump provides electronically controlled variable flow for heat pump secondary loops and multi-storey heating circuits. Its internal variable frequency drive matches pump output to variable heating loads.
Manufactured from EN-GJL-200 cast iron, the 180 mm port-to-port casing holds a precision composite impeller and air-cooled electronic power module. The assembly is rated for 10 bar working pressure and circulating temperatures from -10°C to 110°C, weighing 4.41 kg.
The 1 x 230-240 V 50/60 Hz permanent magnet motor has a maximum power input (P1) of 9 W to 128 W while electrical input power (P1) draws between 9 W and 128 W with a maximum current of 1.03 A. The hydraulic section produces a flow of 5.09 m³/h (85 L/Min) against a maximum head of 5.113 m connected via 1 1/2 inch threaded ports.
Control options include three proportional pressure settings, three constant pressure curves, and three constant speeds. Certified to an Energy Efficiency Index of 0.20 with Class F insulation and an IPX4D enclosure, the pump includes digital start/stop terminals and a fault alarm output.
FEATURES
- Generates 8 m maximum head to overcome elevated friction in zoned circuits
- Permanent magnet motor and integrated inverter deliver an EEI rating of 0.20
- Operating power self-adjusts between 9 W and 128 W according to heat demand
- Cast iron EN-GJL-200 pump body engineered for 10 bar system pressure rating
- Composite impeller resists chemical attack in water-glycol heating mixtures
- Integrated fault relay and remote run/stop input simplify BMS wiring
- 180 mm port-to-port length with standard 1 1/2 inch threaded union fittings
SPECIFICATIONS
| Max Flow | 85 L/Min |
| Max Head | 8 m |
| Power | 85 W / 240v |
| Rated Current | 1.03 Amps |
| Suitable For | Heat Pump Secondary Loops |
| 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.
Across what liquid temperature range and system working pressure bar rating does this unit operate?
Domestic underfloor circulation specifications permit the MAGNA1 25-80 to manage working pressures up to 10 bar in liquid temperatures from -10°C to 110°C.
What peak dynamic head can this cast iron circulator generate for residential hydronic loops?
Supplying high-capacity circulating lift for underfloor loops, the Grundfos MAGNA1 25-80 delivers a maximum dynamic head of approximately 8 m.
How many liters of delivery flow volume does this cast iron pump circulate through its outlet?
Transferring water through residential radiators via 180 mm port-to-port G 1 1/2 inch threaded connections, the MAGNA1-25-80 attains a maximum circulating flow rate of approximately 85 L/Min.
What materials and durable metallurgy are engineered into this residential circulator?
Residential heating duty on the Grundfos MAGNA1 25 80 is supported by a heavy-gauge Cast Iron housing with composite impeller paired with a glandless rotor build.
Regarding electrical consumption, what supply voltage and motor kilowatt power run this circulator?
Electronically commutated motor architecture on the MAGNA1_25_80 self-adjusts power consumption up to 0.085 kW (85 W) on 240 V drawing a rated current of 1.03 Amps.
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