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SKU: 93209376
Grundfos NB 80-315/305 Cast Iron 15 kW End Suction Centrifugal Pump with Closed Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Secondary heating circuit risers and boiler plant lines integrate the Grundfos NB 80-315/305 centrifugal pump. The unit couples a 15 kW drive motor to an axial DN 100 inlet nozzle and a radial DN 80 discharge connection.
Fluid movement output delivers approx. 2571 L/Min volumetric displacement and reaches a approx. 32.9 m head ceiling. Volute casing construction features EN-GJL-250 cast iron with cataphoretic electrocoating, paired with a stainless steel impeller and BQQE shaft seal. Product net weight equals 219 kg.
At 415 V three-phase electrical input, the motor draws 28.7 Amps rated current to generate 15 kW output. Operating limits support liquid temperatures from -25°C to 120°C and maximum system pressures of 16 bar. Flanged pipework attaches via DN 100 inlet and DN 80 outlet ports.
Environmental housing design complies with IP55 standards and Class F temperature insulation. Standard motor installation requires external electrical overload protection. The back-pull-out design allows complete drive and rotating assembly extraction while leaving the casing secured to distribution pipework.
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 | 2571 L/Min |
| Max Head | 32.9 m |
| Power | 15 kW / 415v |
| Rated Current | 28.7 Amps |
| Suitable For | Cooling Tower Hydronic Systems |
| Body Material | Cast Iron |
| Liquid Temperature | -25°C to 120°C |
| Inlet Size | 100 mm |
| Outlet Size | 80 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 piping flange sizes and connection standards interface with building pipe manifolds?
Housing ports on the Grundfos NB 80-315/305 integrate an axial 100 mm suction flange and a radial 80 mm discharge port conforming to PN16 standards.
What shaft seal and wear ring components prevent internal liquid leakage on this pump?
The NB 80-315/305 utilizes a robust BQQE mechanical shaft seal and replaceable wear rings to prevent fluid loss and preserve internal clearances.
What internal wetted alloys and mechanical seals are utilized in this pump?
The NB-80-315-305 incorporates an electrocoated EN-GJL-250 cast iron casing and a stainless steel impeller for dependable operation.
What fluid thermal limits and working pressure ratings govern this unit?
Working limits on the NB 80 315 305 accommodate fluid temperatures from -25°C to 120°C with maximum system pressures reaching 16 bar.
How much liquid circulation and elevation head does this pump sustain?
Supplying approx. 2571 L/Min in liquid flow and approx. 32.9 m in dynamic head, the NB/80/315/305 accommodates diverse operating conditions.
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