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SKU: 93209341
Grundfos NB 65-200/177 Cast Iron 15 kW End Suction Centrifugal Pump with Closed Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Driven by a 15 kW electric motor, the NB 65-200/177 end-suction centrifugal pump features an axial suction port (DN 80) and a radial discharge port (DN 65). Specified for commercial HVAC circulation, district heating installations, and industrial process water distribution, the pump mounts securely onto floor inertia bases in mechanical plant rooms.
Hydraulic wet-end output delivers a rated flow volume of 1582 L/Min with a maximum operational head limit of 37.74 m. The EN-GJL-250 cast iron casing receives cataphoresis electrocoating to limit surface oxidation. Inside, a stainless steel impeller works alongside bronze wear rings and a BQQE shaft seal. Physical net weight measures 156 kg.
Electrical power for the NB 65-200/177 model is supplied by a 415 V three-phase electric motor rated at 15 kW output power. Nominal operating current draw measures 29.1 Amps during full load operations. Operating liquid temperatures span from -25°C to 120°C under 16 bar working pressure. Suction inlet measures DN 100 with a DN 65 discharge port.
Motor protection on the NB 65-200/177 pump complies with IP55 enclosure standards to resist dust and moisture ingress, supported by Class F thermal insulation and internal PTC thermistors. The back-pull-out casing layout allows service personnel to remove the motor drive and rotor assembly without unbolting the pump volute from system suction and discharge piping headers.
Features
- ATEX Zone 1, 2, 21 or 22 certification available for operation in potentially explosive atmospheres (except E-model variants).
- Integrally cast suction and discharge ports with dedicated vent and drain ports provide direct connection points without additional fittings.
- 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.
IMPORTANT: Bulk freight charges apply. Please contact us for a freight quote before ordering.
SPECIFICATIONS
| Max Flow | 1582 L/Min |
| Max Head | 37.74 m |
| Power | 15 kW / 415v |
| Rated Current | 29.1 Amps |
| Suitable For | Industrial Water Infrastructure |
| 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.
What motor power rating and running current power this pump?
Under full load conditions, the motor in the Grundfos NB 65-200/177 delivers 15 kW on a 415 V three-phase line drawing 29.1 Amps.
What fluid temperature limits and immersion depths are rated for this unit?
Tested for thermal durability, the NB 65-200/177 tolerates working fluid temperatures -25°C to 120°C.
What maximum vertical elevation head can this pump achieve?
Fluid elevation through vertical risers reaches up to 37.74 m with the NB-65-200-177 under standard duty points.
How much water volume can this pump displace through its outlet?
Discharge throughput on the NB 65 200 177 reaches a maximum flow rate of approximately 1582 L/Min under standard operating conditions.
How is the pump casing constructed to resist mechanical and fluid wear?
Wetted components on the NB/65/200/177 are crafted from high-grade high-grade alloy to maintain physical integrity and resist abrasive wear.
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