Grundfos NB 40-125/139 AF2ABQQE

Grundfos NB 40-125/139 AF2ABQQE

Grundfos offers an almost unlimited range of closely coupled (NB / NBG) end suction pumps, which are very suitable for challenging applications due to their robustness and reliability. The Grundfos NB and NBG pumps are single-stage centrifugal standard block pumps with axial suction port, radial discharge port and a horizontal shaft and are not self-priming. The standard and block pumps are extremely reliable, energy efficient and can be used for a wide range of applications due to enormous configuration options.

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Extensive product information

• Water supply
• Industrial pressure boosting
• Industrial liquid transport
• Indoor climate (air conditioning, heating and ventilation)
• Irrigation

• Capacity up to 1300 m3/h
• Head up to 160 mWk
• Optimized hydraulics in housing and impeller ensures unimpeded fluid flow
• O-ring seal between pump housing and cover, so no risk of leakage
• Highly corrosion resistant
• Available with IE2 and IE3 motors
• Available with various shaft seal and material variants
• PN 10, 16 and 25 bar

Product name NB 40-125/139 AF2ABQQE
Product number 98144408
EAN number 5711490425192

Pump housing Cast iron
Pump housing EN-GJL-250
Pump housing ASTM class 35
Wear ring Brass
Impeller Cast iron
EN-GJL-200
ASTM class 30
Shaft Stainless steel
EN 1.4301
AISI 304
Internal coating pump housing CED
Material code A
Code for rubber E.

Maximum ambient temperature 60 ° C
Maximum operating pressure 16 bar
Pipe connection standard EN 1092-2
Size of the suction connection DN 65
Size of the pressure connection DN 40
Pressure stage for pipe connection PN 16
Bearing Lubrication Grease
Pump house with feet Yes
Filling block N
Code for pipe connection F2

Fluid handled Water
Liquid temperature range -25 .. 120 °C
Medium temperature during operation 20 ° C
Density 998.2 kg / m³

Engine type 112MC
IE efficiency class IE3
Rated power - P2 4 kW
Mains frequency 50 Hz
Nominal voltage 3 x 380-415D V
Nominal current 7.9 A.
Starting current 1000-1110 %
Cos phi - power factor 0.87-0.87
Nominal speed 2920-2940 rpm
Efficiency IE3 88.1%
Motor efficiency at rated load 88.1 %
Motor efficiency at 3/4 power 88.6 %
Motor efficiency at half power 85.2 %
Pool number 2
Density Class (IEC 34-5) 55 Dust/Jetting
Insulation class (IEC 85) F.
Motor protection PTC
Engine No. 87322303
Mont. regulations according to IEC 34-7 IM V1/B5

Minimum Efficiency Index, MEI ≥ 0.70
Net weight 65 kg
Gross weight 75 kg
Transport volume 0.178 m³
Country of origin HU
HS code 84137051
Frequency converter NONE
Pressure sensor N

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