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SKU: 93209269
Grundfos NB 40-250/242 Cast Iron 2.2 kW End Suction Centrifugal Pump with Closed Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Central heating networks and boiler circulation headers deploy the Grundfos NB 40-250/242 end-suction pump. Powered by a 2.2 kW electric drive, piping connects via an axial DN 65 suction port and a radial DN 40 discharge interface.
Volumetric delivery generates approx. 525 L/Min rated water output and reaches a approx. 19.7 m maximum head ceiling. A cataphoretically coated EN-GJL-250 cast iron casing houses the precision stainless steel impeller and BQQE mechanical shaft seal. Total net product weight measures 73 kg.
The drive assembly operates on a 415 V three-phase line, drawing 4.5 Amps rated current for 2.2 kW power. Permissible media temperatures range between -25°C to 120°C under system pressures up to 16 bar. Flanged line ports measure DN 65 for suction and DN 40 for discharge.
Drive unit construction complies with IP55 ingress criteria and Class F insulation standards. The motor requires external overload protection in the electrical control panel. A back-pull-out mechanical design enables service personnel to extract the impeller and drive assembly without dismantling pipe flanges.
Features
- 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.
- Renewable casing wear rings retain pump efficiency and avoid direct volute casing wear.
SPECIFICATIONS
| Max Flow | 525 L/Min |
| Max Head | 19.7 m |
| Power | 2.2 kW / 415v |
| Rated Current | 4.5 Amps |
| Suitable For | Industrial Water Infrastructure |
| Body Material | Cast Iron |
| Liquid Temperature | -25°C to 120°C |
| Inlet Size | 65 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.
Can this pump handle hot media loops under elevated system pressures?
Operating boundaries for the Grundfos NB 40-250/242 support liquid temperatures from -25°C to 120°C and maximum line pressures reaching 16 bar.
What motor rating and full-load current power this pumping unit?
Operating on a 415 V three-phase supply, the NB 40-250/242 utilizes a 2.2 kW motor drawing 4.5 Amps with IP55 weatherproof protection.
What peak pumping capacity and discharge head does this pump generate?
Operating capacity on the NB-40-250-242 reaches approx. 525 L/Min in liquid flow and approx. 19.7 m in dynamic head across duty cycles.
Which inlet and outlet port sizes are integrated into the pump housing?
Standard PN16 flanged connections on the NB 40 250 242 include an axial 65 mm suction intake and a radial 40 mm discharge port.
Which robust metals form the volute casing and internal runner?
Cast EN-GJL-250 iron with cataphoretic coating forms the housing of the NB/40/250/242, paired with a stainless steel runner for durability.
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