NB80-250 IMPELLER-230AASF2AESBA

The NB pump is a single-stage, horizontal<(>,<)>
non-self-priming volute casing pump in close-coupled design with axial suction and radial pressure connection, as well as horizontal wave.
The pump is equipped with a single-acting mechanical seal fitted. A flange motor of type B5 or B35 is equipped with a motor lantern and a sleeve coupling connected to the pump unit
The dimensions correspond to DIN EN 733

Technical specifications:
Pump type: 80-250/230
Pump efficiency at max. impeller size (2 poles, 50Hz): 81.9%

Performance data:
Equivalent to 20°C water according to ISO 9906 A
Actual speed of the pump: 2975 rpm
Actual flow rate: 180.0 m3/h
Actual head: 70.0m

Operating conditions:
Temperature range of the medium: 0° C..120° C
Maximum working pressure: 16 Bar

Materials:
Material pump housing: gray cast iron
DIN W.-Nr.: EN-GJL-250
ASTM: A48-40B
AISI: A48-40B
wear rings
Material wear rings: high-alloy brass
DIN W.-Nr.: CuZn34Mn3AI2
ASTM: CuZn34Mn3AI2
AISI: CuZn34Mn3AI2
Size of suction port: DN100
Size discharge port: DN80
flanges
Material flanges: gray cast iron
DIN W.-Nr.: EN-GJL-250
ASTM: A48-40B
AISI: A48-40B
Flange standard: EN 1092-2
Flange pressure level: 16 bar

Wheel
Impeller material: gray cast iron
DIN W.-Nr.: EN-GJL-200
ASTM: A48-30B
AISI: A48-30B
Actual impeller diameter: 230 mm
mechanical seal
Gasket standard: DIN EN 12756
Single mechanical seal (Grundfos designation): BAQE
Seal Type: B, Rubber Bellows Seal
Material of the slide ring: A, synthetic carbon, metal-impregnated.
Mating ring material:Q, SiC
Material secondary seal:E, EPDM
Material of other sealing components: GG = EN 1.4404
O-ring seals: pump housing / housing cover: E = EPDM
washers
Shims included: Yes
Electrical data: Motor manufacturer: Siemens
Motor efficiency according to IEC 60034-30: IE3
Number of poles: 2
Rated motor power - P2 50Hz: 55.0kW
Rated voltage 50Hz: 380-420D/660-725YV
Rated current 50Hz: 95/55A
Starting current: 670-670A
Cos phi – power factor 50Hz: 0.89
Engine efficiency at full load: 94.3-94.3
Engine efficiency at 3/4 load: 94.5-94.5
Engine efficiency at 1/2 load: 93.9-93.9
Degree of protection (IEC 34-5): IP55
Insulation class (IEC 85): F
Motor protection: PTC
Motor product number: 99032151
Type of bearing lubrication: grease
packaging (external dimensions)
Length: 1225.0mm
Width: 600mm
Height: 685mm
Volume: [DESCR075] m3
Miscellaneous
ATEX: No ATEX approval