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SKU: 93207122
Grundfos NB 100-250/215 Cast Iron 7.5 kW End Suction Centrifugal Pump with Closed Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Mechanical room distribution skids and heating return lines rely on the Grundfos NB 100-250/215 end-suction pump. Driven by an electric 7.5 kW motor assembly, the pump incorporates an axial DN 125 suction port and a radial DN 100 discharge connection.
Discharge pumping volume attains approx. 3034 L/Min liquid circulation alongside a approx. 15.5 m maximum head limit. The pump housing is cast in EN-GJL-250 iron with cataphoretic electrocoating. Fluid displacement is driven by a stainless steel impeller and a BQQE mechanical shaft seal. Net product weight measures 179 kg.
Fed from a 415 V three-phase supply, the electric motor draws 14.6 Amps to produce 7.5 kW mechanical power. Operational limits permit media temperatures from -25°C to 120°C under working pressures up to 16 bar. Flanged pipe connections measure DN 125 on the inlet and DN 100 on the outlet.
The motor unit conforms to IP55 environmental protection standards with Class F insulation. Standard IEC electric drive design requires external motor overload protection. The back-pull-out structural layout permits complete motor and rotating assembly extraction without disconnecting piping headers.
Features
- IEC standardized electric drive rated for continuous S1 operation in ambients up to 40°C.
- Back-pull-out arrangement allows fast access to motor and impeller without disturbing pipework.
- Precision balancing of rotating parts delivers quiet, low-vibration fluid transfer.
- Heavy-section cast iron volute with integral mounting pads provides solid base support.
- Replaceable wear rings protect casing hydraulics and retain designed pumping clearances.
- Solid stub shaft and ball bearing arrangement counteracts operating mechanical stresses.
- Standardized PN16 dimensions per EN1092-2 align with facility pipe headers.
SPECIFICATIONS
| Max Flow | 3034 L/Min |
| Max Head | 15.5 m |
| Power | 7.5 kW / 415v |
| Rated Current | 14.6 Amps |
| Suitable For | Commercial HVAC Hydronic Circulation |
| Body Material | Cast Iron |
| Liquid Temperature | -25°C to 120°C |
| Inlet Size | 125 mm |
| Outlet Size | 100 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 inlet suction and outlet discharge port dimensions connect this pump to facility pipework?
Manifold connections on the Grundfos NB 100-250/215 utilize an axial 125 mm suction port and a radial 100 mm discharge port meeting PN16 standards.
What volumetric liquid rate and pressure elevation does this pump supply?
Supplying approx. 3034 L/Min in liquid flow and approx. 15.5 m in dynamic head, the NB 100-250/215 accommodates diverse operating conditions.
Is it possible to remove the motor assembly without disturbing pipe connections?
Routine plant servicing is simplified on the NB-100-250-215 by its back-pull-out layout, allowing drive extraction without dismantling pipework.
What shaft seal and wear ring components maintain internal hydraulic clearances on this unit?
Shaft sealing on the NB 100 250 215 is provided by a BQQE mechanical seal alongside replaceable wear rings that protect internal hydraulic geometry.
How much operational current and motor wattage run this pump drive?
Driven across a 415 V three-phase supply, the NB/100/250/215 features a 7.5 kW motor drawing 14.6 Amps with an IP55 enclosure.
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