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SKU: 93209262
Grundfos NB 40-200/188 Cast Iron 7.5 kW End Suction Centrifugal Pump with Closed Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Operating with a 7.5 kW motor rating, the NB 40-200/188 end-suction centrifugal pump features end-suction axial inlet (DN 65) and top radial outlet (DN 40) connections. The pump is specified for district heating, commercial air conditioning loops, and industrial water distribution.
The pump's hydraulic assembly yields 808 L/Min rated flow volume and a maximum operational head of 36.34 m. Structural strength relies on an EN-GJL-250 cast iron casing with cataphoresis coating. Internal hydraulics feature a stainless steel impeller and BQQE shaft seal. Physical product weight equals 116 kg.
The NB 40-200/188 pump's 415 V three-phase drive motor delivers 7.5 kW power output while drawing 14.3 Amps operating current. The pump accommodates circulating fluid temperatures from -25°C to 120°C under working pressures up to 16 bar. Standardized DN 65 suction and DN 40 discharge ports facilitate line placement.
An IP55 enclosure rating protects motor components on the NB 40-200/188 unit, backed by Class F insulation and built-in PTC thermistor sensors. Scheduled maintenance routines utilize back-pull-out access, enabling motor drive and impeller removal while leaving volute casing flange joints intact.
Features
- 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.
- 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).
IMPORTANT:Bulk freight charges apply. Please contact us for a freight quote before ordering.
SPECIFICATIONS
| Max Flow | 808 L/Min |
| Max Head | 36.34 m |
| Power | 7.5 kW / 415v |
| Rated Current | 14.3 Amps |
| Suitable For | Industrial Process Water Loops |
| 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 robust materials of construction are selected for the wet end of this heavy end-suction pump?
To resist hydrodynamic cavitation across district headers, Grundfos NB 40-200/188 pairs an electrocoated cast iron body with a durable stainless steel impeller.
Which electrical parameters in wattage, operating voltage, and full load amps govern this pump?
Electrical specifications for NB 40-200/188 indicate a 7.5 kW motor requiring a three-phase 415 V connection with a full-load draw of 14.3 Amps.
How extreme can circulating water temperatures become under maximum system line pressure on site?
Circulating media temperatures from -25°C to 120°C are accommodated by NB-40-200-188 with pressure retention to 16 bar.
Overcoming steep topographical elevation changes, how high can this heavy volute pump propel liquid?
To support expansive multi-building distribution networks, NB 40 200 188 provides a peak dynamic elevation of approximately 36.34 m.
In centralized district energy plants, how many liters of liquid can this heavy pump move?
Supplying heavy circulating liquid to district headers, NB/40/200/188 delivers an operational throughput of approximately 808 L/Min.
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