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SKU: 93208679
Grundfos NB 32-160/173 Cast Iron 0.75 kW End Suction Centrifugal Pump with Closed Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Chilled liquid distribution and secondary hydronic circuits incorporate the Grundfos NB 32-160/173 end-suction pump. Fitted with a 0.75 kW motor, system piping interfaces through an axial DN 50 suction port and a radial DN 32 discharge flange.
Operational throughput provides a rated capacity of 245 L/Min while reaching up to 8.225 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 40 kg.
Powered by a 415 V three-phase source, the unit draws 1.6 Amps current while producing 0.75 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 50 inlet and DN 32 outlet.
The electric motor provides IP55 ingress protection and Class F winding 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
- 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.
- 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.
SPECIFICATIONS
| Max Flow | 245 L/Min |
| Max Head | 8 m |
| Power | 0.75 kW / 415v |
| Rated Current | 1.6 Amps |
| Suitable For | Cooling Tower Hydronic Systems |
| Body Material | Cast Iron |
| Liquid Temperature | -25°C to 120°C |
| Inlet Size | 50 mm |
| Outlet Size | 32 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.
Is ongoing motor and impeller maintenance easy to perform on site?
Routine servicing on the Grundfos NB 32-160/173 utilizes back-pull-out construction, permitting complete motor and runner removal without disconnecting facility piping headers.
What suction and discharge flange dimensions apply to this pump casing?
The NB 32-160/173 features an axial 50 mm suction port and a radial 32 mm discharge port with standard PN16 flanged connections.
What fluid temperature boundaries and maximum line ratings govern this pump?
Thermal boundaries on the NB-32-160-173 support media temperatures from -25°C to 120°C alongside maximum line pressures up to 16 bar.
How much water circulation and dynamic lift does this unit produce?
Operating capacity on the NB 32 160 173 reaches up to 245 L/Min in liquid flow and 8.225 m in dynamic head across duty cycles.
What power source and motor capacity operate this pumping unit?
The NB/32/160/173 is driven by a 0.75 kW motor running on a 415 V three-phase supply, drawing approximately 1.6 Amps with IP55 protection.
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