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Grundfos Nbg 300-250-500/525 Heating Water Pressurization Centrifugal Pump

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Grundfos Nbg 300-250-500/525 Heating Water Pressurization Centrifugal Pump

Brand Name : Grundfos

Model Number : Nbg

MOQ : 1

Price : Negotiable

Payment Terms : L/C,D/A,D/P,T/T,Western Union,MoneyGram

Supply Ability : Peak Season Lead Time: 1-3 months ，Off Season Lead Time: 1 month

Delivery Time : 5-8 weeks

Packaging Details : Standard Export Plywood Case or Carton

Transported Liquids : Water

Liquid Temperature Range : 0 .. 120 °c

Liquid Temperature During Operation : 20 °c

Density : 998.2 Kg/M³

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  • NBG 300 - 250 - 500/525 AIAF2AESBAQEWW5

    Applications:
    1.Commercial heating
    2.Commercial air - conditioning
    3.Commercial water boosting
    4.District heating
    5.Industrial cleaning processes
    6.Heat supply
    7.Desalination
    8.Municipal water transmission and distribution
    9.Irrigation
    10.Water supply for residential areas and buildings
    Short - coupled pump in accordance with ISO 2858

    NBG horizontal end suction centrifugal pump: suitable for harsh application scenarios
    The Grundfos NBG horizontal end suction centrifugal pump is a non self suction, single-stage centrifugal volute pump with an axial suction port, radial discharge port, and horizontal shaft. This pump is highly suitable for various demanding application scenarios and can provide reliable and effective water supply.
    Due to the use of a tightly coupled pump design, installation in a limited space is very simple. The main dimensions of the NBG end suction centrifugal pump comply with the ISO2858 standard and are tested according to the ISO909906:2012 acceptance level standard before leaving the factory.


  • NBG 300-250-500/525 AIAF2AESBAQEWW5

    The non self-priming single-stage vortex shell centrifugal pump is designed according to the ISO5199 standard, and its size and rated performance comply with the ISO2858 standard (16 bar). The flange is PN 16 type, and its dimensions comply with EN 1092-2 standard. The water pump is equipped with an axial suction port, a radial discharge port, a horizontal shaft, and a rear pull design, which allows maintenance personnel to disassemble the motor, motor seat, cover, and impeller without loosening the pump casing or pipeline. The unbalanced O-type shaft seal complies with DIN EN 12756 standard. A air-cooled asynchronous motor is tightly coupled to the water pump.



    		 Grundfos Nbg 300-250-500/525 Heating Water Pressurization Centrifugal Pump
  • Grundfos Nbg 300-250-500/525 Heating Water Pressurization Centrifugal Pump
  • Controller
    Frequency converter: None
    Pressure sensor: N

    Liquid
    Liquid being transported: Water
    Liquid temperature range: 0..120 °C
    Liquid temperature during operation: 20 °C
    Density: 998.2 kg/m³

    Technology
    Pump speed based on which pump data is obtained: 992 revolutions per minute
    Rated flow rate: 667.9 m³/h
    Rated head: 35.87 meters
    Actual impeller diameter: 525 mm
    Nominal impeller diameter: 500
    Type of impeller: Standard
    Shaft - seal configuration: Single
    Main shaft seal: BAQE
    Shaft seal code: BAQE
    Curve tolerance: ISO9906:2012 3B
    Bearing design: Standard

    Materials
    Pump casing: Cast iron
    Pump housing: EN - GJL - 250
    Pump casing: ASTM class 35
    Wear ring: Brass
    CuZn34Mn3AI2Fe1 - C
    Impeller: Cast iron
    EN - GJL - 200
    ASTM class 30
    Internal pump - house coating: CED
    Shaft: Stainless steel
    EN 1.4301
    AISI 304

    nstallation
    Maximum ambient temperature: 40 °C
    Maximum operating pressure: 16 bar
    Pipe connection standard: EN 1092 - 2
    Inlet size: DN 300
    Outlet size: DN 250
    Pressure rating for pipe connection: PN 16
    Bearing lubrication: Grease
    Pump housing with feet: Yes
    Yes = With support block, No = Without support block: N

    Electrical data
    Motor model: INNOMOTICS
    Rated power - P2: 90 kW
    Power supply frequency: 50 Hz
    Rated voltage: 3 x 380 - 420/660 - 725 V
    Rated current: 160/93 A
    Starting current: 820 %
    Cos phi - Power factor: 0.85
    Rated speed: 992 revolutions per minute
    Efficiency: IE4 95.6%
    IE efficiency class: IE4
    Motor full - load efficiency: 95.6 %
    Motor efficiency at 3/4 load: 95.9 %
    Motor efficiency at 1/2 load: 95.7 %
    Number of motor poles: 6
    Enclosure rating (IEC 34 - 5): IP55
    Insulation class (IEC 85): F
    Motor number: 92848342
    Bearing insulation type N - end: CERAMIC SHAFT COATING

    Others
    Minimum efficiency index, MEI ≥: 0.48
    Net weight: 1590 kg
    Gross weight: 1660 kg
    Shipping volume: 2.27 m³
  • Grundfos Nbg 300-250-500/525 Heating Water Pressurization Centrifugal Pump
  • Grundfos Nbg 300-250-500/525 Heating Water Pressurization Centrifugal Pump
  • Grundfos Nbg 300-250-500/525 Heating Water Pressurization Centrifugal Pump



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