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SKU: 93209372
Grundfos NB 80-250/225 Cast Iron 5.5 kW End Suction Centrifugal Pump with Closed Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Hydronic distribution manifolds and secondary cooling risers operate with the Grundfos NB 80-250/225 centrifugal pump. Fitted with a 5.5 kW motor, system piping interfaces through an axial DN 100 suction port and a radial DN 80 discharge flange.
Liquid displacement performance delivers approx. 1817 L/Min maximum volume while reaching a approx. 17.7 m maximum head. Housing construction features cataphoretically coated EN-GJL-250 cast iron, accommodating a stainless steel impeller and a BQQE mechanical seal. Net weight measures 157 kg.
Operating with a draw of 10.6 Amps, the 415 V three-phase drive produces 5.5 kW mechanical power. Fluid temperature capabilities range from -25°C to 120°C under working pressure limits up to 16 bar. Flange interfaces are dimensioned at DN 100 inlet and DN 80 outlet.
Enclosure construction conforms to IP55 environmental criteria and Class F thermal insulation. External motor overload protection must be provided by the installer. The back-pull-out construction allows extraction of the motor and rotating components without disturbing suction or discharge pipe connections.
Features
- Cast iron volute casing with integral mounting feet absorbs hydraulic forces and pipework stresses.
- Replaceable wear rings retain correct internal hydraulic clearances over long operating periods.
- Solid stub shaft configuration supported by deep groove ball bearings absorbs axial thrust loads.
- Standardized EN1092-2 PN16 flange dimensions match standard commercial and district pipe manifolds.
- High-efficiency IEC electric drive motor rated for S1 continuous operation in ambient conditions up to 40°C.
- Back-pull-out construction allows drive and impeller removal without disconnecting suction or discharge lines.
- Precision balanced rotor and runner assemblies minimize operating vibration across all pump speeds.
SPECIFICATIONS
| Max Flow | 1817 L/Min |
| Max Head | 17.7 m |
| Power | 5.5 kW / 415v |
| Rated Current | 10.6 Amps |
| Suitable For | Commercial Building Services HVAC |
| Body Material | Cast Iron |
| Liquid Temperature | -25°C to 120°C |
| Inlet Size | 100 mm |
| Outlet Size | 80 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.
How is the pump body built to prevent corrosion and mechanical breakdown?
Protective electrocoating shields the EN-GJL-250 cast iron casing of the Grundfos NB 80-250/225, which houses a stainless steel impeller.
How does this pump maintain fluid containment maintain internal hydraulic clearances on this unit?
The NB 80-250/225 utilizes a robust BQQE mechanical shaft seal and replaceable wear rings to prevent fluid loss and preserve internal clearances.
What piping flange sizes and connection standards apply to this pump casing?
Pipe connections on the NB-80-250-225 consist of an axial 100 mm inlet and a radial 80 mm outlet meeting PN16 flange standards.
How much operating amperage and drive power run this pump motor?
Driven across a 415 V three-phase supply, the NB 80 250 225 features a 5.5 kW motor drawing 10.6 Amps with an IP55 enclosure.
How much liquid throughput and hydraulic lift does this pump provide?
Supplying approx. 1817 L/Min in liquid flow and approx. 17.7 m in dynamic head, the NB/80/250/225 accommodates diverse operating conditions.
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