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SKU: 93209344
Grundfos NB 65-200/198 Cast Iron 22 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 80 axial suction and DN 65 radial discharge ports, the NB 65-200/198 pump processes clean liquid media across active HVAC circuits. Powered by a 22 kW electric motor, the system operates across continuous commercial pumping cycles.
The hydraulic wet-end achieves a rated flow capacity of 1967 L/Min with a maximum head rating of 47.81 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 218 kg.
Power specifications for the NB 65-200/198 end-suction pump call for a 415 V three-phase electrical supply rated at 22 kW motor power. Current draw under load measures 40.8 Amps. Operating fluid temperatures span -25°C to 120°C with a maximum working pressure rating of 16 bar. The housing features DN 80 axial suction and DN 65 radial discharge ports.
The NB 65-200/198 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
- 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 | 1967 L/Min |
| Max Head | 47.81 m |
| Power | 22 kW / 415v |
| Rated Current | 40.8 Amps |
| Suitable For | District Heating & Cooling Networks |
| Body Material | Cast Iron |
| Liquid Temperature | '-25°C to 120°C |
| Inlet Size | 80 mm |
| Outlet Size | 65 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.
Within high-capacity district energy networks, how high can this heavy volute pump elevate liquid?
Through heavy floor-mounted casing waterways, Grundfos NB 65-200/198 achieves a peak dynamic head of approximately 47.81 m.
Across sprawling facility transmission mains, what peak volumetric liquid capacity is maintained under load?
Through heavy floor-mounted piping manifolds, NB 65-200/198 achieves a maximum volumetric discharge of approximately 1967 L/Min.
How are the pressure-bearing volute and rotating assembly engineered for long-term endurance?
High fatigue resistance is built into NB-65-200-198 through an electrocoated cast iron casing with a precision-cast bronze impeller.
What incoming power requirements, operating voltage, and operational amperage apply to this heavy unit?
Energy consumption for NB 65 200 198 is rated at 22 kW across a three-phase 415 V line with an operational current draw of 40.8 Amps.
Across varying media conditions, what thermal boundaries and line pressure ratings are supported on site?
Hydronic liquid temperatures ranging from -25°C to 120°C are accommodated by NB/65/200/198 alongside maximum system pressures of 10 bar.
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