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SKU: 93207156
Grundfos NB 32-160.1/169 Cast Iron 3 kW End Suction Centrifugal Pump with Closed Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Specified for commercial building services, process water loops, and district cooling infrastructure, the NB 32-160.1/169 end-suction centrifugal pump incorporates DN 50 suction and DN 32 discharge flanged ports. The end-suction volute design connects directly to suction line headers and concrete foundation bases.
At nominal operational speed, hydraulic output provides 341 L/Min flow throughput alongside a maximum head limit of 31.98 m. Structural construction incorporates an EN-GJL-250 cast iron body with cataphoresis surface finish. Internal components feature a stainless steel impeller and BQQE seal. Total net weight stands at 59 kg.
The NB 32-160.1/169 electric motor operates on a 415 V three-phase supply drawing 10.3 Amps rated current at 3 kW output power. Fluid handling parameters accommodate liquid temperatures between -25°C to 120°C up to 16 bar system pressure. Line connection uses opposite DN 50 inlet and DN 32 outlet flanged ports.
Enclosure protection on the NB 32-160.1/169 model meets IP55 standards while motor windings feature Class F insulation and PTC thermistor protection relays. Maintenance technicians can extract the drive unit using back-pull-out access without removing the cast iron volute casing from connected plant room piping manifolds.
Features
- Cataphoretic electrocoating on cast iron internal surfaces provides barrier protection against oxidative corrosion in hydronic circulation loops.
- Close-coupled configuration eliminates coupling alignment procedures and reduces overall installation footprint compared to long-coupled alternatives.
- Ball bearing support arrangement accommodates both radial and axial thrust loads generated during continuous duty operation at rated speed.
- PN16 flanged connection ratings on sizes up to and including DN 150 provide elevated working pressure capability beyond standard EN733 10 bar ratings.
- O-ring seal between pump housing and cover eliminates leakage risk at the volute-to-cover joint under sustained operating pressures.
- Optimised impeller and volute hydraulics deliver unimpeded liquid flow through the pump casing, reducing internal turbulence losses.
- All stainless steel shaft construction provides improved corrosion resistance compared to carbon steel alternatives in wetted service areas.
IMPORTANT:Bulk freight charges apply. Please contact us for a freight quote before ordering.
SPECIFICATIONS
| Max Flow | 341 L/Min |
| Max Head | 31.98 m |
| Power | 3 kW / 415v |
| Rated Current | 10.3 Amps |
| Suitable For | Boiler Plant & Thermal Transfer |
| 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.
How extreme can process water temperatures become under maximum system operating pressure?
Hydraulic parameters allow fluid temperatures between -25°C to 120°C to be conveyed by Grundfos NB 32-160.1/169 up to a line pressure limit of 10 bar.
In commercial boiler rooms, what total vertical column is developed across distribution mains?
Overcoming elevation friction across primary manifolds, NB 32-160.1/169 delivers a maximum dynamic lift of approximately 31.98 m.
Supporting heavy primary circulation loops, what peak volumetric discharge is sustained under load?
Supporting heavy primary circulation loops, NB-32-160.1-169 achieves a peak volumetric flow of approximately 341 L/Min.
Under high hydraulic pressures, which structural materials maintain casing integrity on site?
Internal pressure containment in NB 32 160.1 169 relies on an EN-GJL-250 cast iron casing paired with a durable stainless steel impeller.
How much electrical wattage does this foot-mounted motor consume under full operating current?
Under full mechanical load, NB/32/160.1/169 consumes 10.3 Amps from a three-phase 415 V line to power its 3 kW electric motor.
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