Grundfos NK 50-125/144 A2F2AE-SBQQE
Grundfos NK 50-125/144 A2F2AE-SBQQE
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Extensive product information
Applications
• Water supply
• Industrial pressure boosting
• Industrial liquid transport
• Indoor climate (air conditioning, heating and ventilation)
• Irrigation
Features and benefits
• Optimized hydraulics in housing and impeller ensures unimpeded fluid flow
• O-ring seal between pump housing and cover, so there is no risk of leakage
• Impeller housing and wear ring made of different materials, provides improved corrosion resistance and no 'sticky' elements
• Back pull-out design for easy disassembly for service
• The pump is electrophoretically coated for increased corrosion resistance
• Available with IE3 and IE4 motors
• PN 10/16 and 25 bar
• Temperatures up to 180 degrees Celsius
Specifications
Productnaam NK 50-125/144 A2F2AE-SBQQE
Productnummer 98763599
EAN nummer 5712601053853
Materials
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.
Installation details
Maximum ambient temperature 60 ° C
Maximum operating pressure 16 bar
Pipe connection standard EN 1092-2
Suction connection type DIN
Press connection type DIN
Size of the suction connection DN 65
Pressure connection size DN 50
Pressure stage for pipe connection PN 16
Coupling type Flexible w/spacer
Base frame design EN/ISO
Grouting N
Code for pipe connection F.
Medium
Fluid handled Water
Liquid temperature range -25 .. 120 °C
Medium temperature during operation 20 ° C
Density 998.2 kg / m³
Electrical data
Engine type 132SB
IE efficiency class IE3
Nominal power - P2 7.5 kW
Mains frequency 50 Hz
Nominal voltage 3 x 380-415D / 660-690Y V
Nominal current 14.4-14.0 / 8.30-8.10 A.
Starting current 780-910 %
Cos phi – power factor 0.88-0.86
Nominal speed 2910-2920 rpm
Efficiency IE3 90.1% – IE3 90.4%
Motor efficiency at rated load 90.1-90.4 %
Motor efficiency at 3/4 power 90.8 %
Motor efficiency at half power 90.8 %
Pool number 2
Density Class (IEC 34-5) 55 Dust/Jetting
Insulation class (IEC 85) F.
Motor protection PTC
Engine No. 87370377
Other information
Minimum Efficiency Index, MAY ≥ 0.68
Net weight 160 kg
Gross weight 181 kg
Transport volume 0.363 m³
Country of origin HU
HS code 84137059
Frequency converter NONE
Pressure sensor N
EN 
NL