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SKU: 93209348
Grundfos NB 65-250/215 Cast Iron 3 kW End Suction Centrifugal Pump with Closed Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Base-mounted pumping installations and secondary heating circuits deploy the Grundfos NB 65-250/215 end-suction pump. Powered by a 3 kW electric drive, piping connects via an axial DN 80 suction port and a radial DN 65 discharge interface.
Pumping discharge performance attains 858 L/Min volumetric flow against a 12.88 m maximum head. A cataphoretically coated EN-GJL-250 cast iron casing houses the precision stainless steel impeller and BQQE mechanical shaft seal. Total net product weight measures 115 kg.
Electrical hookup to a 415 V three-phase circuit draws 6.23 Amps current for 3 kW power generation. Permissible media temperatures range between -25°C to 120°C under system pressures up to 16 bar. Flanged line ports measure DN 80 for suction and DN 65 for discharge.
Drive unit sealing satisfies IP55 enclosure standards, utilizing Class F winding insulation. The motor requires external overload protection in the electrical control panel. A back-pull-out mechanical design enables service personnel to extract the impeller and drive assembly without dismantling pipe flanges.
Features
- IEC standardized electric drive rated for continuous S1 operation in ambients up to 40°C.
- Back-pull-out arrangement allows fast access to motor and impeller without disturbing pipework.
- Precision balancing of rotating parts delivers quiet, low-vibration fluid transfer.
- Heavy-section cast iron volute with integral mounting pads provides solid base support.
- Replaceable wear rings protect casing hydraulics and retain designed pumping clearances.
- Solid stub shaft and ball bearing arrangement counteracts operating mechanical stresses.
- Standardized PN16 dimensions per EN1092-2 align with facility pipe headers.
SPECIFICATIONS
| Max Flow | 858 L/Min |
| Max Head | 12 m |
| Power | 3 kW / 415v |
| Rated Current | 6.23 Amps |
| Suitable For | Facility Fluid Transfer & 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 connection flange sizes and port orientations are fitted to this fluid pumping unit?
Standard flanges on the Grundfos NB 65-250/215 comply with PN16 ratings, featuring an axial 80 mm suction intake and a radial 65 mm discharge port.
What peak volumetric rate and dynamic elevation does this pump supply?
Supplying up to 858 L/Min in liquid flow and 12.88 m in dynamic head, the NB 65-250/215 accommodates diverse operating conditions.
Which shaft sealing design and internal wear components protect against fluid leakage along the drive shaft?
The NB-65-250-215 utilizes a robust BQQE mechanical shaft seal and replaceable wear rings to prevent fluid loss and preserve internal clearances.
What operating thermal limits and system pressure ratings apply to this unit?
Thermal boundaries on the NB 65 250 215 support media temperatures from -25°C to 120°C alongside maximum line pressures up to 16 bar.
How is the pump casing engineered to counter corrosion and erosion?
High-grade EN-GJL-250 cast iron forms the casing of the NB/65/250/215, housing a stainless steel impeller for lasting service.
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