End-suction close-coupled pumps according to EN 733
Non-self-priming, single-stage, centrifugal volute pump designed according to ISO 5199 with dimensions and rated performance according to EN 733 (10 bar). Flanges are PN 16 with dimensions according to EN 1092-2. The pump has an axial suction port, radial discharge port, horizontal shaft and a back pull-out design enabling removal of the motor, motor stool, cover and impeller without disturbing the pump housing or pipework. The unbalanced rubber bellows seal is according to DIN EN 12756. The pump is close-coupled to a fan-cooled asynchronous motor.
General information:
Product name: NB 50-200/210
AAF2AESBAQEPW1
Product No: 98305110
EAN number: 5711492777978
Technical:
Pump speed on which pump data are
based: 2955 rpm
Rated flow: 89.06 m³/h
Rated head: 53.16 m
Actual impeller diameter: 210 mm
Nominal impeller diameter: 200
Shaft seal arrangement: Single
Shaft diameter: 24 mm
Code for shaft seal: BAQE
Curve tolerance: ISO9906:2012 3B
Pump version: A
Bearing design: Standard
Materials:
Pump housing: Cast iron
Pump housing: EN-GJL-250
Pump housing: ASTM class 35
Wear ring: Brass
Impeller: Cast iron
Impeller: EN-GJL-200
Impeller: ASTM class 30
Internal pump house coating: CED
Material code: A
Code for rubber: E
Shaft: Stainless steel
Shaft: EN 1.4301
Shaft: AISI 304
Installation:
Maximum ambient temperature: 55 °C
Maximum operating pressure: 16 bar
Pipe connection standard: EN 1092-2
Size of inlet connection: DN 65
Size of outlet connection: DN 50
Pressure rating for connection: PN 16
Bearing lubrication: Grease
Pump housing with feet: No
Support block (Yes/No): N
Connect code: F2
Liquid:
Pumped liquid: Water
Liquid temperature range: 0 .. 120 °C
Selected liquid temperature: 20 °C
Density: 998.2 kg/m³
Electrical data:
Motor type: SIEMENS
Rated power – P2: 18.5 kW
Mains frequency: 50 Hz
Rated voltage: 3 x 380-420D/660-725Y V
Rated current: 32/18.6 A
Starting current: 900 %
Cos phi – power factor: 0.90
Rated speed: 2955 rpm
IE efficiency: IE3 92,4%
IE Efficiency class: IE3
Motor efficiency at full load: 92.4 %
Motor efficiency at 3/4 load: 92.8 %
Motor efficiency at 1/2 load: 92.4 %
Number of poles: 2
Enclosure class (IEC 34-5): IP55
Insulation class (IEC 85):
Value
F
Built-in motor protection:
PTC
Motor No:
99032132
Mount. design. acc. IEC 34-7:
IM B35
Bearing insulation type N-end:
Steel Bearing
Controls:
Frequency converter:
None
Pressure sensor:
N
Others:
Minimum efficiency index, MEI ≥:
0.70
Net weight:
151 kg
Gross weight:
175 kg
Shipping volume:
0.707 m³
Language on pump nameplate:
GB
