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SKU: 93209204
Grundfos NB 40-125/116 Cast Iron 2.2 kW End Suction Centrifugal Pump with Closed Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
The NB 40-125/116 end-suction centrifugal pump incorporates a 2.2 kW electric drive motor connected to DN 65 suction and DN 40 discharge flanged piping joints. Designed for continuous building service duty, the unit handles clean fluid movement across commercial plant installations.
Hydraulic rating calculations confirm a flow capacity of 701 L/Min at a maximum head threshold of 12.23 m. The volute housing is constructed from cataphoresis treated cast iron. Rotor hydraulics feature a stainless steel impeller supported by bronze wear rings. Total net weight measures 50 kg.
Motor electrical configuration on the NB 40-125/116 pump requires a 415 V three-phase connection rated at 2.2 kW output power. Operating current measures 7.56 Amps at nominal speed. Liquid temperature ranges extend from -25°C to 120°C under 16 bar pressure. Connection is made via DN 65 inlet and DN 40 outlet flanges.
Motor security on the NB 40-125/116 end-suction pump features an IP55 rated housing, Class F thermal insulation, and PTC thermistor winding relays. The back-pull-out structural geometry permits technicians to remove the motor drive and rotor without dismantling connected suction or discharge pipe headers.
Features
- All stainless steel shaft construction provides improved corrosion resistance compared to carbon steel alternatives in wetted service areas.
- Mechanical shaft seal can be replaced without removing the impeller, system piping, pump volute casing or drive motor from the installation.
- Housing, impeller and wear ring use dissimilar material pairings to prevent galling and ensure no sticking elements during extended standby periods.
- High-efficiency motor selection is configured to match the specific power supply characteristics, pumping environment and liquid properties of each installation.
- Back pull-out design allows complete rotating assembly removal including motor, coupling and impeller without disturbing pump housing or connected pipework.
- EN733 and ISO2858 dimensional compliance ensures interchangeability with other standard end-suction pumps across commercial and industrial installations.
- ATEX Zone 1, 2, 21 or 22 certification available for operation in potentially explosive atmospheres (except E-model variants).
IMPORTANT:Bulk freight charges apply. Please contact us for a freight quote before ordering.
SPECIFICATIONS
| Max Flow | 700 L/Min |
| Max Head | 12.23 m |
| Power | 2.2 kW / 415v |
| Rated Current | 7.81 Amps |
| Suitable For | High-Capacity Plant Room Pumping |
| 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.
With heavy-walled volute casing construction, what fluid operating window is certified on site?
Handling broad climate control demands, Grundfos NB 40-125/116 accommodates circulating liquid media across -25°C to 120°C at pressures to 16 bar.
With heavy foot-mounted casing construction, what maximum vertical elevation is generated?
Foot-mounted casing rigidity allows NB 40-125/116 to maintain an operational dynamic lift of approximately 12.23 m.
With generous volute internal dimensions, what maximum volumetric capacity is maintained?
With generous volute internal dimensions, NB-40-125-116 achieves a peak liquid circulation of approximately 700 L/Min.
Which structural metals give this foot-mounted centrifugal pump its mechanical toughness?
Hydraulic containment reliability in NB 40 125 116 relies on an EN-GJL-250 cast iron casing alongside a precision-cast bronze impeller.
What electrical specifications in motor kilowatts, operating voltage, and amps apply on site?
The heavy drive fitted to NB/40/125/116 utilizes 2.2 kW of electrical power on a three-phase 415 V line pulling 7.81 Amps.
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