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SKU: 93207163
Grundfos NB 32-160/151 Cast Iron 3 kW End Suction Centrifugal Pump with Closed Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Operating with a 3 kW motor rating, the NB 32-160/151 end-suction centrifugal pump features end-suction axial inlet (DN 50) and top radial outlet (DN 32) connections. The pump is specified for district heating, commercial air conditioning loops, and industrial water distribution.
The pump's hydraulic assembly yields 420 L/Min rated flow volume and a maximum operational head of 24.43 m. Structural strength relies on an EN-GJL-250 cast iron casing with cataphoresis coating. Internal hydraulics feature a stainless steel impeller and BQQE shaft seal. Physical product weight equals 59 kg.
The NB 32-160/151 pump's 415 V three-phase drive motor delivers 3 kW power output while drawing 10.3 Amps operating current. The pump accommodates circulating fluid temperatures from -25°C to 120°C under working pressures up to 16 bar. Standardized DN 50 suction and DN 32 discharge ports facilitate line placement.
An IP55 enclosure rating protects motor components on the NB 32-160/151 unit, backed by Class F insulation and built-in PTC thermistor sensors. Scheduled maintenance routines utilize back-pull-out access, enabling motor drive and impeller removal while leaving volute casing flange joints intact.
Features
- 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.
- Mechanical shaft seal can be replaced without removing the impeller, system piping, pump volute casing or drive motor from the installation.
- Housing, impeller and wear ring use dissimilar material pairings to prevent galling and ensure no sticking elements during extended standby periods.
- High-efficiency motor selection is configured to match the specific power supply characteristics, pumping environment and liquid properties of each installation.
- Back pull-out design allows complete rotating assembly removal including motor, coupling and impeller without disturbing pump housing or connected pipework.
IMPORTANT:Bulk freight charges apply. Please contact us for a freight quote before ordering.
SPECIFICATIONS
| Max Flow | 420 L/Min |
| Max Head | 24.43 m |
| Power | 3 kW / 415v |
| Rated Current | 10.3 Amps |
| Suitable For | Commercial Chilled Water Circulation |
| 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.
To withstand aggressive hydronic conditions, what metallurgy is engineered into the wet end?
The physical build of Grundfos NB 32-160/151 combines an electrocoated cast iron casing with a durable stainless steel impeller.
To sustain steady fluid movement, what incoming feed, motor kilowatts, and amps are required?
Running current for NB 32-160/151 is certified at 10.3 Amps across a three-phase 415 V line to power its 3 kW electric motor.
Through rigid end-suction volute passages, what media thermal limits and line pressure are rated?
Leak-free fluid containment is maintained by NB-32-160-151 across media temperatures of -25°C to 120°C and line pressures to 16 bar.
Discharging fluid through end-suction volute geometry, what total lift is delivered on site?
Displacing fluid across primary plant skids, NB 32 160 151 attains an operational dynamic head of approximately 24.43 m.
Through smooth internal casing passages, what peak volumetric flow rate is achieved on site?
Through smooth internal casing passages, NB/32/160/151 sustains a peak flow volume of approximately 420 L/Min.
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