Grundfos NB 50-250/222 ASF2ABQQE

• 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 50-250/222 ASF2ABQQE
Product number 98979916
EAN number 5712604621165

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
Pressure connection size DN 50
Pressure stage for pipe connection PN 16
Bearing Lubrication Grease
Pump house with feet No
Filling block Y
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 160LB
IE efficiency class IE3
Rated power - P2 18.5 kW
Mains frequency 50 Hz
Nominal voltage 3 x 380-415D / 660-690Y V
Nominal current 34.5-32.5 / 20.0-18.8 A.
Starting current 830-980 %
Cos phi - power factor 0.89-0.85
Nominal speed 2940-2950 rpm
Efficiency IE3 92.4%
Motor efficiency at rated load 92.4 %
Motor efficiency at 3/4 power 93.2 %
Motor efficiency at half power 93.2 %
Pool number 2
Density Class (IEC 34-5) 55 Dust/Jetting
Insulation class (IEC 85) F.
Motor protection PTC
Engine No. 87420030
Mont. regulations according to IEC 34-7 IM B35

Minimum Efficiency Index, MAY ≥ 0.67
Net weight 178 kg
Gross weight 203 kg
Transport volume 0.707 m³
Country of origin HU
HS code 84137051
Frequency converter NONE
Pressure sensor N