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SKU: 93209331
Grundfos NB 65-160/135 Cast Iron 0.75 kW End Suction Centrifugal Pump with Closed Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Secondary thermal distribution manifolds and cooling coils feature the Grundfos NB 65-160/135 centrifugal pump. Driven by an electric 0.75 kW motor assembly, the pump incorporates an axial DN 80 suction port and a radial DN 65 discharge connection.
Liquid circulation output generates 745 L/Min rated volume with a developed head limit of 4.304 m. The pump housing is cast in EN-GJL-250 iron with cataphoretic electrocoating. Fluid displacement is driven by a stainless steel impeller and a BQQE mechanical shaft seal. Net product weight measures 48 kg.
Running on 415 V three-phase electrical power, the unit draws 1.6 Amps to deliver 0.75 kW shaft output. Operational limits permit media temperatures from -25°C to 120°C under working pressures up to 16 bar. Flanged pipe connections measure DN 80 on the inlet and DN 65 on the outlet.
Environmental frame sealing meets IP55 enclosure criteria, utilizing Class F insulation. Standard IEC electric drive design requires external motor overload protection. The back-pull-out structural layout permits complete motor and rotating assembly extraction without disconnecting piping headers.
Features
- High-efficiency IEC electric drive motor rated for S1 continuous operation in ambient conditions up to 40°C.
- Back-pull-out construction allows drive and impeller removal without disconnecting suction or discharge lines.
- Precision balanced rotor and runner assemblies minimize operating vibration across all pump speeds.
- Cast iron volute casing with integral mounting feet absorbs hydraulic forces and pipework stresses.
- Replaceable wear rings retain correct internal hydraulic clearances over long operating periods.
- Solid stub shaft configuration supported by deep groove ball bearings absorbs axial thrust loads.
- Standardized EN1092-2 PN16 flange dimensions match standard commercial and district pipe manifolds.
SPECIFICATIONS
| Max Flow | 745 L/Min |
| Max Head | 4 m |
| Power | 0.75 kW / 415v |
| Rated Current | 1.6 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 connection flange sizes and port orientations connect to mechanical plant pipework?
Pipe connections on the Grundfos NB 65-160/135 consist of an axial 80 mm suction port and a radial 65 mm discharge port meeting PN16 standards.
How does the back-pull-out design support rapid plant room maintenance?
Routine plant servicing is simplified on the NB 65-160/135 by its back-pull-out layout, allowing drive extraction without dismantling pipework.
What liquid temperature tolerances and maximum system pressures apply here?
Thermal boundaries on the NB-65-160-135 support media temperatures from -25°C to 120°C alongside maximum line pressures up to 16 bar.
How much fluid flow and vertical elevation can this pump achieve?
Operating capacity on the NB 65 160 135 reaches up to 745 L/Min in liquid flow and 4.304 m in dynamic head across duty cycles.
How much motor output and operational current are needed for this unit?
The NB/65/160/135 is driven by a 0.75 kW motor running on a 415 V three-phase supply, drawing approximately 1.6 Amps with IP55 protection.
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