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SKU: 93207155
Grundfos NB 32-160.1/155 Cast Iron 2.2 kW End Suction Centrifugal Pump with Closed Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
The NB 32-160.1/155 single-stage end-suction pump operates on a 415 V three-phase supply rated at 2.2 kW drive power. Built with an axial inlet port (DN 50) and top radial outlet port (DN 32), the unit connects into commercial hydronic heating networks, cooling tower water loops, and facility fluid transfer lines.
Under full duty load, the pump generates 317 L/Min rated flow capacity and reaches a maximum head threshold of 23.86 m. The heavy volute housing uses electrocoated cast iron to resist internal corrosion. A stainless steel impeller rotor assembly with bronze wear rings drives fluid transfer. Net product weight equals 49 kg.
Drive power on the NB 32-160.1/155 pump comes from a 2.2 kW electric motor operating on a 415 V three-phase electrical connection. Full-load running current measures 7.81 Amps. The pump processes liquid media over temperatures from -25°C to 120°C under line pressures up to 16 bar. Pipe connections use DN 50 suction and DN 32 discharge flanges.
Built with an IP55 rated motor enclosure and Class F insulation, the NB 32-160.1/155 electric motor incorporates internal PTC thermistor sensors against overheating. Servicing is simplified by the back-pull-out structural layout, enabling complete rotor and drive removal without disconnecting suction or discharge pipe joints.
Features
- No baseplate or grouting required to maintain correct shaft alignment and vibration levels within Hydraulic Institute standards.
- 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.
IMPORTANT:Bulk freight charges apply. Please contact us for a freight quote before ordering.
SPECIFICATIONS
| Max Flow | 316 L/Min |
| Max Head | 23.86 m |
| Power | 2.2 kW / 415v |
| Rated Current | 7.81 Amps |
| Suitable For | Facility Fluid Transfer & 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.
Under peak mechanical pumping load, what power consumption and current draw are listed on site?
Plant power infrastructure supplies a three-phase 415 V connection to Grundfos NB 32-160.1/155, whose 2.2 kW drive pulls 7.81 Amps.
What media thermal operating spectrum and working line pressure are engineered into this casing?
Circulating media temperatures between -25°C to 120°C are sustained by NB 32-160.1/155 with a maximum operating pressure of 10 bar.
Supporting heavy floor-mounted piping, how much dynamic head can this centrifugal pump produce?
Hydraulic pressure generation in NB-32-160.1-155 establishes an operational dynamic head of approximately 23.86 m.
Within central utility plant rooms, how many liters per minute can this pump displace?
Within central utility plant rooms, NB 32 160.1 155 maintains an operational volumetric delivery of approximately 316 L/Min.
What protective cataphoresis treatment and alloy selection protect this end-suction shell?
To resist hydrodynamic shearing, NB/32/160.1/155 incorporates an electrocoated cast iron volute and a precision-cast bronze impeller.
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