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SKU: 93209345
Grundfos NB 65-200/205 Cast Iron 3 kW End Suction Centrifugal Pump with Closed Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Central plant hydronic risers and chilled liquid manifolds feature the Grundfos NB 65-200/205 centrifugal pump. Coupled to a 3 kW motor drive, fluid enters through an axial DN 80 suction port and exits through a radial DN 65 discharge flange.
Fluid delivery capacity generates 992 L/Min rated output while reaching a maximum head of 12.39 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 82 kg.
Operating under 415 V three-phase electrical power, the 3 kW motor draws 6.23 Amps rated current. 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 frame protection meets IP55 environmental specifications 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
- Standard PN16 flanged port interfaces align with EN1092-2 heating and cooling headers.
- Totally enclosed fan cooled IEC motor rated for S1 duty cycles in ambient environments up to 40°C.
- Service-friendly back-pull-out layout enables rotating element servicing without removing pipework.
- Balanced impeller geometry and shaft construction reduce operational vibration throughout duty range.
- Volute casing design incorporates integral base feet for direct mounting to concrete plinths.
- Internal wear rings retain hydraulic clearance tolerances throughout long service cycles.
- Solid stub shaft supported by sealed ball bearings carries axial and radial loads.
SPECIFICATIONS
| Max Flow | 992 L/Min |
| Max Head | 12 m |
| Power | 3 kW / 415v |
| Rated Current | 6.23 Amps |
| Suitable For | Industrial Process Water Loops |
| 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 maintenance benefits are delivered by the back-pull-out structural design?
Convenient access to rotating components on the Grundfos NB 65-200/205 is provided by back-pull-out construction that leaves pipe joints intact.
What materials form the pump casing, rotating impeller, and shaft seal?
High-grade EN-GJL-250 cast iron forms the casing of the NB 65-200/205, housing a stainless steel impeller for lasting service.
Which shaft sealing design and internal wear components protect this pump against fluid loss?
Fluid containment in the NB-65-200-205 is maintained by a BQQE mechanical shaft seal, supported by replaceable wear rings that preserve hydraulic clearances.
How much water circulation and discharge head does this pump maintain?
Delivering up to 992 L/Min in volumetric flow and 12.39 m in dynamic head, the NB 65 200 205 adapts across its curve.
What electrical specifications and motor capacity run this pumping unit?
Operating on a 415 V three-phase supply, the NB/65/200/205 utilizes a 3 kW motor drawing 6.23 Amps with IP55 weatherproof protection.
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