Grundfos NBG/NBGE SuperVortex Impeller

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The Grundfos NBG(E) SuperVortex impeller pumps are end suction, close-coupled, single-stage centrifugal pumps. They guarantee reliability in heavy-duty industrial applications and are built for moving large volumes of water and other liquids. The new vortex impeller design provides free passage for stringy objects, long fibres, and solids up to 25 mm. These stainless steel pumps are also suitable for wastewater with up to 5% dry matter content.

KNOW MORE ABOUT Grundfos NBG/NBGE SuperVortex Impeller

The Grundfos NBG(E) SuperVortex impeller pumps are end suction, close-coupled, single-stage centrifugal pumps.
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Design Advantages

  • SuperVortex impeller with little to no contact with pumped fluid, minimising jamming
  • Good at passing solids with sizes up to 25mm without clogging
  • Designed to pump liquid with high content of sand and heavy-duty industrial applications
  • Standard close-coupled pumps with flanges according to ISO 2858 (and MGE motor for NBGE pumps)
  • Loose flanges for easy installation and maintenance (available in DIN, ISO and ANSI)
  • Reduced life cycle costs
  • Full range in stainless steel
  • Dedicated shaft seal solutions to accommodate most liquids encountered in industrial applications
  • Close-coupled pumps with flanges according to ISO 2858 (and MGE motor for NBGE pumps)
  • Back pull-out design enabling easy service of the pump
  • Optimized hydraulics in housing and impeller, which provides unimpeded liquid flow
  • O-ring seal between pump housing and cover, which ensures no risk of leakage

Available Options

We customise pumps according to your specific application. Get in touch with us today to get a complete list of your options.

  • Materials options
  • Shaft seal options
  • Motor options with variable speed control
  • Standard or customised versions
  • Accessories and spare parts
  • Baseplate

Applications

  • Wash and clean
  • Machining
  • Paint & pre-treatment in automotive
  • Oil and fat processing in F&B
  • Wastewater feed, transfer and treatment
  • Water reuse
  • Transfer of water with fibres and solids

Grundfos NBG(E) SuperVortex impeller pumps Technical Data

The Grundfos NBG(E) SuperVortex impeller pumps are end suction, close-coupled, single-stage centrifugal pumps.
MODEL/SERIES NBGE NBG
MAX FLOW 151 m³/h 231 m³/h
MAX HEAD 38 m 56 m
MAX PRESSURE 16 bar 16 bar
TEMPERATURE -25 .. 120 °C -25 .. 120 °C

PRINCIPLE OF OPERATION

Grundfos range of booster pumps are centrifugal type hence use the same working principle. Booster pumps boost water pressure and, in many cases, improves the flow rate. They rely upon one or more impellers to draw the pumped fluid into the intake of the pump, and to boost its pressure as the fluid passes through the impeller and the volute or diffuser casing. Some are single-stage, meaning that they have a single impeller. These are generally used in applications where the amount of additional pressure (head) that is required is not significant. There are also multi-stage configurations involving more than one impeller, which are used to deliver higher heads such as would be required to move water up to substantially higher elevations or through much longer pipelines.

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