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SKU: 93209284
Grundfos NB 40-315/283 Cast Iron 3 kW End Suction Centrifugal Pump with Closed Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Plant room mechanical piping and hydronic circulation lines feature the Grundfos NB 40-315/283 end-suction pump. Fitted with a 3 kW motor, system piping interfaces through an axial DN 65 suction port and a radial DN 40 discharge flange.
Rated pumping capacity provides 329 L/Min liquid displacement with a 19.08 m maximum developed head. Housing construction features cataphoretically coated EN-GJL-250 cast iron, accommodating a stainless steel impeller and a BQQE mechanical seal. Net weight measures 125 kg.
Three-phase 415 V power powers the 3 kW electric motor with an operating current of 6.23 Amps. Fluid temperature capabilities range from -25°C to 120°C under working pressure limits up to 16 bar. Flange interfaces are dimensioned at DN 65 inlet and DN 40 outlet.
Environmental sealing achieves an IP55 enclosure rating with Class F winding insulation. External motor overload protection must be provided by the installer. The back-pull-out construction allows extraction of the motor and rotating components without disturbing suction or discharge pipe connections.
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 | 329 L/Min |
| Max Head | 19 m |
| Power | 3 kW / 415v |
| Rated Current | 6.23 Amps |
| Suitable For | Commercial HVAC Hydronic Circulation |
| 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.
Which inlet and outlet port sizes apply to this pump casing?
Flanged connections on the Grundfos NB 40-315/283 adhere to PN16 standards, incorporating an axial 65 mm inlet and a radial 40 mm outlet.
What motor power and three-phase voltage are required for this pump?
The NB 40-315/283 is driven by a 3 kW motor running on a 415 V three-phase supply, drawing approximately 6.23 Amps with IP55 protection.
How does the pump design enable rapid mechanical servicing without piping disruption?
Routine plant servicing is simplified on the NB-40-315-283 by its back-pull-out layout, allowing drive extraction without dismantling pipework.
What fluid discharge rate and dynamic head does this pump provide?
The NB 40 315 283 provides up to 329 L/Min in fluid flow and 19.08 m in dynamic head, depending on system pressure demands.
What thermal tolerances and maximum pressure boundaries govern this pump?
Working limits on the NB/40/315/283 accommodate fluid temperatures from -25°C to 120°C with maximum system pressures reaching 16 bar.
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