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SKU: 93209260
Grundfos NB 40-160/177 Cast Iron 1.1 kW End Suction Centrifugal Pump with Closed Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Mechanical heating skids and hydronic supply headers rely on the Grundfos NB 40-160/177 end-suction pump. The unit couples a 1.1 kW drive motor to an axial DN 65 inlet nozzle and a radial DN 40 discharge connection.
Discharge performance generates 373 L/Min flow volume alongside a 10.17 m maximum developed head. 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 47 kg.
Equipped for 415 V three-phase power, the motor requires 2.34 Amps current draw to provide 1.1 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 65 inlet and DN 40 outlet ports.
Drive frame construction incorporates IP55 ingress protection and Class F 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
- 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 | 373 L/Min |
| Max Head | 10 m |
| Power | 1.1 kW / 415v |
| Rated Current | 2.34 Amps |
| Suitable For | Commercial Building Services HVAC |
| Body Material | Cast Iron |
| Liquid Temperature | -25°C to 120°C |
| Inlet Size | 65 mm |
| Outlet Size | 40 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 shaft sealing mechanism and wear protection protect this pump housing against fluid leakage?
Shaft sealing on the Grundfos NB 40-160/177 is provided by a BQQE mechanical seal alongside replaceable wear rings that protect internal hydraulic clearances.
What mechanical features make servicing this pump convenient in plant rooms?
Extracting the rotating assembly on the NB 40-160/177 requires no pipe disconnection, thanks to its back-pull-out maintenance architecture.
What voltage supply and motor rating are needed for this pump drive?
Driven across a 415 V three-phase supply, the NB-40-160-177 features a 1.1 kW motor drawing 2.34 Amps with an IP55 enclosure.
What media temperature span and system line pressures can this pump withstand?
Operating boundaries for the NB 40 160 177 safely accommodate fluid temperatures from -25°C to 120°C and maximum system pressures up to 16 bar.
What fluid throughput and pressure height does this pump develop?
Delivering up to 373 L/Min in volumetric flow and 10.17 m in dynamic head, the NB/40/160/177 adapts across its curve.
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