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SKU: 93207146
Grundfos NB 32-125.1/140 Cast Iron 2.2 kW End Suction Centrifugal Pump with Closed Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Specified for commercial building services, process water loops, and district cooling infrastructure, the NB 32-125.1/140 end-suction centrifugal pump incorporates DN 50 suction and DN 32 discharge flanged ports. The end-suction volute design connects directly to suction line headers and concrete foundation bases.
At nominal operational speed, hydraulic output provides 386 L/Min flow throughput alongside a maximum head limit of 22.1 m. Structural construction incorporates an EN-GJL-250 cast iron body with cataphoresis surface finish. Internal components feature a stainless steel impeller and BQQE seal. Total net weight stands at 49 kg.
The NB 32-125.1/140 electric motor operates on a 415 V three-phase supply drawing 7.81 Amps rated current at 2.2 kW output power. Fluid handling parameters accommodate liquid temperatures between -25°C to 120°C up to 16 bar system pressure. Line connection uses opposite DN 50 inlet and DN 32 outlet flanged ports.
Enclosure protection on the NB 32-125.1/140 model meets IP55 standards while motor windings feature Class F insulation and PTC thermistor protection relays. Maintenance technicians can extract the drive unit using back-pull-out access without removing the cast iron volute casing from connected plant room piping manifolds.
Features
- 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).
- Integrally cast suction and discharge ports with dedicated vent and drain ports provide direct connection points without additional fittings.
IMPORTANT:Bulk freight charges apply. Please contact us for a freight quote before ordering.
SPECIFICATIONS
| Max Flow | 386 L/Min |
| Max Head | 22.1 m |
| Power | 2.2 kW / 415v |
| Rated Current | 7.81 Amps |
| Suitable For | Industrial Water Infrastructure |
| Body Material | Cast Iron |
| Liquid Temperature | '-25°C to 120°C |
| Inlet Size | 50 mm |
| Outlet Size | 32 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.
Which structural metals provide rigidity and pressure containment for this end-suction pump?
To withstand pipework stress, Grundfos NB 32-125.1/140 combines an electrocoated EN-GJL-250 cast iron body with a durable stainless steel impeller.
Which electrical supply parameters, motor kilowatts, and full load current operate this pump?
Operating on a three-phase 415 V circuit, NB 32-125.1/140 incorporates a 2.2 kW motor with an operational current of 7.81 Amps.
Through heavy baseplate-mounted pipework, what liquid operating range and pressure are rated?
Operating boundaries for NB-32-125.1-140 encompass liquid temperatures of -25°C to 120°C and maximum hydraulic pressures up to 16 bar.
Under floor-mounted installation conditions, what vertical delivery height is achievable?
Floor-mounted pump engineering allows NB 32 125.1 140 to achieve an operational dynamic lift of approximately 22.1 m.
In primary boiler plant manifolds, what peak liquid circulation volume can be expected?
In primary boiler plant manifolds, NB/32/125.1/140 maintains a peak volumetric throughput of approximately 386 L/Min.
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