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SKU: 93209343
Grundfos NB 65-200/190 Cast Iron 18.5 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 65-200/190 end-suction centrifugal pump incorporates DN 80 suction and DN 65 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 1845 L/Min flow throughput alongside a maximum head limit of 43.31 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 178 kg.
The NB 65-200/190 electric motor operates on a 415 V three-phase supply drawing 35.3 Amps rated current at 18.5 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 80 inlet and DN 65 outlet flanged ports.
Enclosure protection on the NB 65-200/190 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
- No baseplate or grouting required to maintain correct shaft alignment and vibration levels within Hydraulic Institute standards.
- Cataphoretic electrocoating on cast iron internal surfaces provides barrier protection against oxidative corrosion in hydronic circulation loops.
- Close-coupled configuration eliminates coupling alignment procedures and reduces overall installation footprint compared to long-coupled alternatives.
- 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.
IMPORTANT:Bulk freight charges apply. Please contact us for a freight quote before ordering.
SPECIFICATIONS
| Max Flow | 1845 L/Min |
| Max Head | 43.31 m |
| Power | 18.5 kW / 415v |
| Rated Current | 35.3 Amps |
| Suitable For | Commercial Chilled Water Circulation |
| Body Material | Cast Iron |
| Liquid Temperature | '-25°C to 120°C |
| Inlet Size | 80 mm |
| Outlet Size | 65 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.
Under peak system operating pressure, what fluid temperature boundaries can this end-suction pump endure?
Thermal operating limits for Grundfos NB 65-200/190 encompass process fluid temperatures from -25°C to 120°C under pressures up to 10 bar.
Discharging fluid into central distribution trunk lines, what peak dynamic head is achieved?
Supporting multi-elevation energy networks, NB 65-200/190 maintains a maximum dynamic elevation of approximately 43.31 m.
With heavy end-suction volute architecture, how many liters per minute can this pump displace?
Supporting high-capacity energy loops, NB-65-200-190 provides an operational circulation throughput of approximately 1845 L/Min.
What housing material and closed runner alloy provide longevity in this heavy centrifugal pump?
Volute pressure integrity in NB 65 200 190 is maintained by an EN-GJL-250 cast iron housing paired with a durable stainless steel impeller.
Which induction motor power rating, three-phase supply line, and full load running current are specified?
The robust electric drive of NB/65/200/190 delivers 18.5 kW of rotational power on a three-phase 415 V connection at 35.3 Amps.
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