Grundfos offers a virtually limitless range of close coupled (NB) end-suction pumps. Their sturdiness and reliability make them ideal for use in demanding environments.
Grundfos NB, NBG, NBE, NBGE & NK End Suction Centrifugal Pumps
General
Grundfos end-suction pumps are used in water supply, industrial pressure boosting, industrial liquid transfer, HVAC (heating, ventilation and air-conditioning), and irrigation.
Grundfos end-suction pumps are multi-purpose pumps suitable for a variety of different applications requiring reliable and cost-efficient supply. End-suction pumps are used in five main areas of application: water supply, industrial pressure boosting, industrial liquid transfer, HVAC and irrigation.
The Grundfos NB/NBG pumps are all non-self-priming, single-stage, centrifugal volute pumps with axial suction port, radial discharge port and horizontal shaft. The NB/NBG range consists of close-coupled pumps with their main dimensions in accordance with either EN733 or ISO2858.
The NB range of end suction pumps are commonly used in:
- District heating plants
- Heating systems for blocks of flats
- Air-conditioning systems
- Cooling systems
- Wash down systems
- Other industrial systems
Additional Information
Specifications
Full operation and specification details can be found under the “Additional Information” tab.
Summary:
NB 2 Pole-
- Single stage, close coupled end suction pump DIN24255/EN733
- Construction CI.BR.SS with BQQE mechanical seals
- Fitted with 3×415 V IP55 motor
NB 4 Pole-
- Single stage, close coupled end suction pump DIN24255/EN733
- Construction CI.BR.SS with BQQE mechanical seals
- Fitted with 3×415 V IP55 motor
NKG –
- Single stage bare shaft pump with mechanical seal ISO 2858
- High efficiency pumps
- Pump flanged to AS2129 Table E
- Mechanical shaft seals BQQE
- Bronze wear rings as standard
NBG 2 & 4 Pole –
- Single stage end suction pump to ISO2858
- Fitted with 3 x 415V IP55 motor
- High efficiency pumps
- Pumps flanged to Table E
- Mechanical shaft seals BQQE
- Bronze wear rings as standard
Features
The NB End Suction Range has the following features:
- Optimised hydraulics in housing and impeller = unimpeded liquid flow
- O-ring seal between pump housing and cover = no risk of leakage
- Housing, impeller and wear ring in different materials = improved corrosion resistance, no sticking elements
- Pump is CED coated to increase corrosion resistance
- Available with IE1, IE2 and IE3 motors
- Available in a number of shaft seal and material variants
- PN 10,16 and 25 bar
- For temperatures up to 140 °C
