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SKU: 93209306
Grundfos NB 50-160/177 Cast Iron 15 kW End Suction Centrifugal Pump with Closed Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
The NB 50-160/177 end-suction centrifugal pump incorporates a 15 kW electric drive motor connected to DN 65 suction and DN 50 discharge flanged piping joints. Designed for continuous building service duty, the unit handles clean fluid movement across commercial plant installations.
Hydraulic rating calculations confirm a flow capacity of 1581 L/Min at a maximum head threshold of 38.78 m. The volute housing is constructed from cataphoresis treated cast iron. Rotor hydraulics feature a stainless steel impeller supported by bronze wear rings. Total net weight measures 148 kg.
Motor electrical configuration on the NB 50-160/177 pump requires a 415 V three-phase connection rated at 15 kW output power. Operating current measures 29.1 Amps at nominal speed. Liquid temperature ranges extend from -25°C to 120°C under 16 bar pressure. Connection is made via DN 65 inlet and DN 50 outlet flanges.
Motor security on the NB 50-160/177 end-suction pump features an IP55 rated housing, Class F thermal insulation, and PTC thermistor winding relays. The back-pull-out structural geometry permits technicians to remove the motor drive and rotor without dismantling connected suction or discharge pipe headers.
Features
- 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.
- 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.
IMPORTANT:Bulk freight charges apply. Please contact us for a freight quote before ordering.
SPECIFICATIONS
| Max Flow | 1581 L/Min |
| Max Head | 38.78 m |
| Power | 15 kW / 415v |
| Rated Current | 29.1 Amps |
| Suitable For | Facility Fluid Transfer & Circulation |
| Body Material | Cast Iron |
| Liquid Temperature | '-25°C to 120°C |
| Inlet Size | 65 mm |
| Outlet Size | 50 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 centralized municipal utility stations, what total dynamic column does this pump develop?
Anchored securely on a heavy steel baseplate, Grundfos NB 50-160/177 produces a maximum dynamic head of approximately 38.78 m.
Supplying heavy hydronic volume to plant headers, what peak volumetric throughput does this pump provide?
Displacing fluid through large axial suction ports, NB 50-160/177 attains a maximum flow rate of approximately 1581 L/Min.
Which alloys comprise the pressure boundary and rotating core of this heavy end-suction pump?
To resist hydrodynamic shearing, NB-50-160-177 incorporates an electrocoated cast iron volute and a precision-cast bronze impeller.
Across facility power systems, how is this high-output electric motor supplied on site?
Plant power infrastructure supplies a three-phase 415 V connection to NB 50 160 177, whose 15 kW drive pulls 29.1 Amps.
At elevated circulating temperatures, what maximum working pressure can this end-suction casing withstand?
Fluid media spanning -25°C to 120°C can be conveyed through NB/50/160/177 at maximum line pressures reaching 16 bar.
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