Roll over image to zoom
SKU: 93209314
Grundfos NB 50-200/219 Cast Iron 22 kW End Suction Centrifugal Pump with Closed Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
The NB 50-200/219 end-suction centrifugal pump incorporates a 22 kW electric drive motor connected to DN 65 suction and DN 50 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 1560 L/Min at a maximum head threshold of 58.26 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 214 kg.
Motor electrical configuration on the NB 50-200/219 pump requires a 415 V three-phase connection rated at 22 kW output power. Operating current measures 40.8 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 50 outlet flanges.
Motor security on the NB 50-200/219 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
- Ball bearing support arrangement accommodates both radial and axial thrust loads generated during continuous duty operation at rated speed.
- PN16 flanged connection ratings on sizes up to and including DN 150 provide elevated working pressure capability beyond standard EN733 10 bar ratings.
- O-ring seal between pump housing and cover eliminates leakage risk at the volute-to-cover joint under sustained operating pressures.
- Optimised impeller and volute hydraulics deliver unimpeded liquid flow through the pump casing, reducing internal turbulence losses.
- 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.
IMPORTANT:Bulk freight charges apply. Please contact us for a freight quote before ordering.
SPECIFICATIONS
| Max Flow | 1560 L/Min |
| Max Head | 58.26 m |
| Power | 22 kW / 415v |
| Rated Current | 40.8 Amps |
| Suitable For | Cooling Tower Hydronic Systems |
| Body Material | Cast Iron |
| Liquid Temperature | '-25°C to 120°C |
| Inlet Size | 65 mm |
| Outlet Size | 50 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.
In central mechanical rooms, how does this heavy pump endure elevated liquid temperatures and pressures?
Physical containment in Grundfos NB 50-200/219 reliably manages circulating fluids across -25°C to 120°C under pipeline pressures up to 10 bar.
Operating against severe piping hydraulic resistance, what maximum dynamic elevation is produced?
Across heavy-duty boiler plant headers, NB 50-200/219 develops an operational elevation column of approximately 58.26 m.
With robust centrifugal runner geometry, how many liters of water can this unit displace?
Under unrestricted suction conditions, NB-50-200-219 achieves a maximum volumetric flow of approximately 1560 L/Min.
Under intense velocity profiles, which structural materials provide lasting reliability on site?
The physical build of NB 50 200 219 combines an electrocoated cast iron casing with a precision-cast bronze impeller.
Which motor kilowatt output, supply voltage, and operational current draw run this heavy pump?
Running current for NB/50/200/219 is certified at 40.8 Amps across a three-phase 415 V line to power its 22 kW electric motor.
Need help choosing the right pump?
Our team of pump experts are here to help you find the perfect solution for your application.
- Free expert advice
- Pump sizing & system recommendations
- Fast response — call or email us