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SKU: 93209336
Grundfos NB 65-160/173 Cast Iron 15 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 65-160/173 pump processes clean liquid media across active HVAC circuits. Powered by a 15 kW electric motor, the system operates across continuous commercial pumping cycles.
The hydraulic wet-end achieves a rated flow capacity of 1927 L/Min with a maximum head rating of 34.86 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 151 kg.
Power specifications for the NB 65-160/173 end-suction pump call for a 415 V three-phase electrical supply rated at 15 kW motor power. Current draw under load measures 29.1 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 65-160/173 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
- 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.
- EN733 and ISO2858 dimensional compliance ensures interchangeability with other standard end-suction pumps across commercial and industrial installations.
- 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.
IMPORTANT:Bulk freight charges apply. Please contact us for a freight quote before ordering.
SPECIFICATIONS
| Max Flow | 1927 L/Min |
| Max Head | 34.86 m |
| Power | 15 kW / 415v |
| Rated Current | 29.1 Amps |
| Suitable For | Cooling Tower Hydronic Systems |
| 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.
Supporting elevated urban utility headers, what peak dynamic discharge elevation is produced?
Across primary facility distribution headers, Grundfos NB 65-160/173 provides an operational dynamic elevation column of approximately 34.86 m.
Moving large water volumes across utility headers, what maximum fluid circulation volume is maintained?
Under steady pumping duty, NB 65-160/173 maintains a peak liquid circulation capacity of approximately 1927 L/Min.
How do the casing metallurgy and closed impeller design withstand severe municipal conditions?
The rigid casing structure of NB-65-160-173 incorporates an electrocoated EN-GJL-250 cast iron volute with a precision-cast bronze impeller.
Across the facility electrical grid, what motor wattage, supply feed, and amps run this end-suction unit?
Full load running amperage for NB 65 160 173 stands at 29.1 Amps from a three-phase 415 V supply to power its 15 kW motor.
For closed-circuit primary loops, which fluid temperature ratings and pressure limits apply on site?
Circulation loops operating from -25°C to 120°C are accommodated by NB/65/160/173 under line working pressures up to 16 bar.
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