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SKU: 93209373
Grundfos NB 80-250/244 Cast Iron 7.5 kW End Suction Centrifugal Pump with Closed Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Plant utility room water lines and primary heating loops rely on the Grundfos NB 80-250/244 end-suction pump. Driven by an electric 7.5 kW motor assembly, the pump incorporates an axial DN 100 suction port and a radial DN 80 discharge connection.
Hydraulic throughput output attains approx. 2080 L/Min fluid delivery and overcomes up to approx. 21.9 m head. The pump housing is cast in EN-GJL-250 iron with cataphoretic electrocoating. Fluid displacement is driven by a stainless steel impeller and a BQQE mechanical shaft seal. Net product weight measures 166 kg.
Electric power delivery from a 415 V three-phase source provides 14.6 Amps to deliver 7.5 kW output. Operational limits permit media temperatures from -25°C to 120°C under working pressures up to 16 bar. Flanged pipe connections measure DN 100 on the inlet and DN 80 on the outlet.
Drive casing engineering meets IP55 protection standards, utilizing Class F insulation. Standard IEC electric drive design requires external motor overload protection. The back-pull-out structural layout permits complete motor and rotating assembly extraction without disconnecting piping headers.
Features
- Renewable casing wear rings retain pump efficiency and avoid direct volute casing wear.
- Solid shaft assembly with sealed ball bearings absorbs operational hydraulic and radial forces.
- EN1092-2 flanged connections conform to standard PN16 pipework dimensions.
- Continuous duty S1 rated electric drive motor operates in ambient temperatures up to 40°C.
- Back-pull-out layout permits motor and impeller servicing without breaking pipe connections.
- Integral casing support feet provide direct anchoring to plant room inertia bases and plinths.
- Precision balanced rotating components reduce hydraulic noise and mechanical shaft deflection.
SPECIFICATIONS
| Max Flow | 2080 L/Min |
| Max Head | 21.9 m |
| Power | 7.5 kW / 415v |
| Rated Current | 14.6 Amps |
| Suitable For | Commercial Chilled Water Circulation |
| 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.
What electrical supply requirements and motor rating operate this unit?
Drive motor on the Grundfos NB 80-250/244 provides 7.5 kW from a 415 V three-phase supply, drawing 14.6 Amps with IP55 protection.
What media temperature tolerances and system pressure limits apply here?
Thermal boundaries on the NB 80-250/244 support media temperatures from -25°C to 120°C alongside maximum line pressures up to 16 bar.
What peak water displacement and vertical head can this unit supply?
Operating capacity on the NB-80-250-244 reaches approx. 2080 L/Min in liquid flow and approx. 21.9 m in dynamic head across duty cycles.
Which metallurgy is selected for the volute casing and rotating impeller?
The NB 80 250 244 features an electrocoated EN-GJL-250 cast iron volute and a precision stainless steel impeller for lasting durability.
How does the mechanical arrangement simplify impeller and motor servicing on site?
Routine plant servicing is simplified on the NB/80/250/244 by its back-pull-out layout, allowing drive extraction without dismantling pipework.
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