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SKU: 93209333
Grundfos NB 65-160/149 Cast Iron 1.1 kW End Suction Centrifugal Pump with Closed Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Primary heating plant skids and water transfer manifolds deploy the Grundfos NB 65-160/149 end-suction pump. Coupled to a 1.1 kW motor drive, fluid enters through an axial DN 80 suction port and exits through a radial DN 65 discharge flange.
Hydraulic capacity delivers 870 L/Min volumetric flow against an upper head limit of 5.739 m. Constructed with an EN-GJL-250 cast iron volute protected by cataphoretic electrocoating, internal hydraulics feature a stainless steel impeller and BQQE mechanical shaft seal. Net weight is 53 kg.
Power consumption reaches 2.34 Amps on a 415 V three-phase connection to drive the 1.1 kW motor. Working tolerances accommodate fluid temperatures spanning -25°C to 120°C at pressures reaching 16 bar. Flanged connections feature DN 80 inlet and DN 65 outlet dimensions.
Motor enclosure construction provides an IP55 ingress rating and Class F insulation. Because built-in thermal protection is not included, external motor overload protection must be supplied. Maintenance is streamlined via a back-pull-out arrangement allowing rotating element removal while the casing remains connected to piping.
Features
- Back-pull-out layout permits motor and impeller servicing without breaking pipe connections.
- Integral casing support feet provide direct anchoring to plant room inertia bases and plinths.
- Precision balanced rotating components reduce hydraulic noise and mechanical shaft deflection.
- Renewable casing wear rings retain pump efficiency and avoid direct volute casing wear.
- Solid shaft assembly with sealed ball bearings absorbs operational hydraulic and radial forces.
- EN1092-2 flanged connections conform to standard PN16 pipework dimensions.
- Continuous duty S1 rated electric drive motor operates in ambient temperatures up to 40°C.
SPECIFICATIONS
| Max Flow | 870 L/Min |
| Max Head | 5 m |
| Power | 1.1 kW / 415v |
| Rated Current | 2.34 Amps |
| Suitable For | Commercial Chilled Water Circulation |
| 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 mechanical seal type and internal clearances provide dependable fluid containment along the shaft?
Sealing integrity on the Grundfos NB 65-160/149 is maintained with a BQQE mechanical shaft seal, paired with replaceable wear rings to preserve clearances.
Can the motor assembly be removed for service without uncoupling pipe headers?
Extracting the rotating assembly on the NB 65-160/149 requires no pipe disconnection, thanks to its back-pull-out maintenance architecture.
What electrical supply feed and motor capacity operate this pump?
Driven across a 415 V three-phase supply, the NB-65-160-149 features a 1.1 kW motor drawing 2.34 Amps with an IP55 enclosure.
What thermal range and working line limits are supported by this pump?
Operating boundaries for the NB 65 160 149 safely accommodate fluid temperatures from -25°C to 120°C and maximum system pressures up to 16 bar.
What volumetric liquid capacity and pressure head does this pump deliver?
Delivering up to 870 L/Min in volumetric flow and 5.739 m in dynamic head, the NB/65/160/149 adapts across its curve.
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