Roll over image to zoom
SKU: 93208699
Grundfos NB 32-200/206 Cast Iron 7.5 kW End Suction Centrifugal Pump with Closed Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Featuring an end-suction structural layout with DN 50 axial suction and DN 32 radial discharge ports, the NB 32-200/206 pump processes clean liquid media across active HVAC circuits. Powered by a 7.5 kW electric motor, the system operates across continuous commercial pumping cycles.
The hydraulic wet-end achieves a rated flow capacity of 564 L/Min with a maximum head rating of 46.75 m. Cast iron housing materials provide solid pressure containment up to 16 bar. The internal assembly houses a stainless steel impeller fitted with bronze wear rings. Net equipment weight is 113 kg.
Power specifications for the NB 32-200/206 end-suction pump call for a 415 V three-phase electrical supply rated at 7.5 kW motor power. Current draw under load measures 14.3 Amps. Operating fluid temperatures span -25°C to 120°C with a maximum working pressure rating of 16 bar. The housing features DN 50 axial suction and DN 32 radial discharge ports.
The NB 32-200/206 electric motor carries an IP55 ingress protection rating alongside Class F thermal insulation and integrated PTC thermistors. System maintenance relies on back-pull-out architecture, enabling drive head disassembly while the pump volute stays secured to concrete foundation bases and pipe runs.
Features
- 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.
- 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.
IMPORTANT:Bulk freight charges apply. Please contact us for a freight quote before ordering.
SPECIFICATIONS
| Max Flow | 564 L/Min |
| Max Head | 46.75 m |
| Power | 7.5 kW / 415v |
| Rated Current | 14.3 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.
In institutional boiler rooms, how much volumetric throughput can this baseplate unit provide?
In institutional boiler rooms, Grundfos NB 32-200/206 maintains a peak volumetric water circulation of approximately 564 L/Min.
To prevent galvanic degradation, what alloys and coatings are applied across the wet end?
To endure severe primary loop conditions, NB 32-200/206 features an EN-GJL-250 cast iron housing with a precision-cast bronze impeller.
To power this foot-mounted centrifugal assembly, what motor rating and current draw are needed?
The induction motor system in NB-32-200-206 provides 7.5 kW of shaft output, requiring a three-phase 415 V line drawing 14.3 Amps.
In institutional boiler rooms, what fluid operating temperature range and pressure are rated?
System engineers can circulate fluid media from -25°C to 120°C using NB 32 200 206 under working pressures up to 10 bar.
In institutional energy stations, what total dynamic lift does this end-suction unit attain?
In institutional boiler plant facilities, NB/32/200/206 provides an operational dynamic lift of approximately 46.75 m.
Need help choosing the right pump?
Our team of pump experts are here to help you find the perfect solution for your application.
- Free expert advice
- Pump sizing & system recommendations
- Fast response — call or email us