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SKU: 99411175
Grundfos Alpha2 25-60 Cast Iron AUTOADAPT Circulator Pump 180mm with Composite Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Older heating installations or systems specified with wider valve centres require a longer pump body than the compact Alpha2 variant provides. The Grundfos Alpha2 25-60 180 fills that role while retaining the same AUTOADAPT self-adjustment, built for domestic radiator circuits where pipe spacing rules out the shorter 130 mm model.
Peak output reaches approx. 56.6 L/Min with a maximum head up to 6 m, drawn from a 34 W motor with current consumption automatically adjusting between 0.04 A and 0.32 A on a 1 x 240 V supply as the pump continuously tracks system resistance. The same 0.17 Energy Efficiency Index applies as the 130 mm version.
Rather than stepping between fixed speeds, output adjusts continuously to match actual heating demand, with an automatic reduced night-time duty mode lowering consumption further during low-flow overnight periods based on detected system behaviour. The cast iron housing and composite impeller suit closed-loop radiator circuits, with liquid temperatures supported from 2°C to 110°C.
At 180 mm port-to-port with 1 1/2 inch connections, the pump directly replaces older fixed-speed circulators of the same body length without requiring pipework modification. An IPX4D enclosure and Class F insulation complete the specification.
FEATURES
- AUTOADAPT function provides continuous self-adjusting speed control without manual intervention
- Automatic reduced night-time duty mode lowers consumption during low-flow overnight periods, detected from system behaviour
- Electronically commutated motor achieves an Energy Efficiency Index of 0.17
- Current consumption self-adjusts from 0.04 A to 0.32 A as the pump continuously tracks system resistance
- Extended 180 mm port-to-port body dimension accommodates wider valve spacing
- Cast iron housing specified for closed-loop radiator circuits where potable water approval is not required
- Composite impeller construction delivers consistent hydraulic performance in closed-loop heating applications
- IPX4D enclosure rating provides ingress protection against splashing water and dust
SPECIFICATIONS
| Max Flow | 56.6 L/Min |
| Max Head | 6 m |
| Power | 34 W / 240v |
| Rated Current | 0.32 Amps |
| Suitable For | Radiator Heating |
| Body Material | Cast Iron |
| Liquid Temperature | 2°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 motor power rating and running current power this pump?
Under full load conditions, the motor in the Grundfos Alpha2 25-60 delivers 0.034 kW on a 240 V line drawing 0.32 Amps.
What fluid temperature limits and immersion depths are rated for this unit?
Tested for thermal durability, the Alpha2 25-60 tolerates working fluid temperatures up to 2°C to 110°C.
What maximum vertical elevation head can this pump achieve?
Fluid elevation through vertical risers reaches up to 6 m with the Alpha2-25-60 under standard duty points.
How much water volume can this pump displace through its outlet?
Discharge throughput on the Alpha2 25 60 reaches a maximum flow rate of approximately 56.6 L/Min under standard operating conditions.
How is the pump casing constructed to resist mechanical and fluid wear?
Wetted components on the Alpha2/25/60 are crafted from high-grade Cast Iron to maintain physical integrity and resist abrasive wear.
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