Tianjin Shiny-Metals Technology Co., Ltd.
                                                                                                           
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Grundfos 90kW Single Stage Centrifugal Pump with 666.6 m³/h Flow Rate and 250mm Outlet Diameter

Price Negotiable
Price: 200-1000
MOQ: 1
Delivery Time: within 15 workdays
Brand: Grundfos
Product Description
Product Overview
End-suction close-coupled single-stage centrifugal pump model NBG 300-250-500/525 AIAF2AESBQQEWW5, designed for demanding industrial applications with 90kW motor power and 250mm outlet diameter.
Product Number: 93351275
Applications
  • Commercial heating and air conditioning systems
  • Commercial water pressure boosting
  • District heating networks
  • Industrial cleaning processes
  • Heating supply systems
  • Desalination plants
  • Municipal water transmission and distribution
  • Agricultural irrigation systems
  • Community and building water supply
Design & Construction
Non-self-priming single-stage volute centrifugal pump designed in accordance with ISO 5199, with dimensions and rated performance complying with ISO 2858 (16 bar). Features axial suction port, radial discharge port, horizontal shaft, and back-pull-out design for easy maintenance without disconnecting pipelines.
Compliance: Short-coupled pump conforming to ISO 2858
Flange Standard: PN 16 type, dimensions conforming to EN 1092-2
Shaft Seal: Unbalanced O-type meeting DIN EN 12756 requirements
Grundfos 90kW centrifugal pump front view showing industrial construction and connections Grundfos pump technical diagram illustrating internal components and flow path
Controller & Liquid Specifications
Controller
  • Frequency converter: None
  • Pressure sensor: N
Liquid Properties
  • Liquid conveyed: Water
  • Liquid temperature range: -25 to 120 °C
  • Liquid temperature during operation: 20 °C
  • Density: 998.2 kg/m³
Technical Performance Data
ParameterValue
Pump speed basis990 rpm
Rated flow rate666.6 m³/h
Rated head35.73 m
Impeller actual diameter525 mm
Impeller nominal speed500
Impeller typeStandard
Shaft seal configurationSingle
Main shaft sealBQQE
Curve toleranceISO9906:2012 3B
Bearing designStandard
Material Specifications
ComponentMaterial
Pump housingCast iron (EN-GJL-250, ASTM class 35)
Wear ringBrass (CuZn34Mn3AI2Fe1-C)
ImpellerCast iron (EN-GJL-200, ASTM class 30)
Internal pump housing coatingCED
ShaftStainless steel (EN 1.4301, AISI 304)
Installation Specifications
ParameterValue
Maximum ambient temperature40 °C
Maximum operating pressure16 bar
Pipeline connection standardEN 1092-2
Inlet sizeDN 300
Outlet sizeDN 250
Pressure rating for pipe connectionPN 16
Bearing lubricationGrease
Pump casing with support feetYes
Electrical Specifications
ParameterValue
Motor model315M
Rated power - P290 kW
Power supply frequency50 Hz
Rated voltage3 x 380-400/660-690 V
Rated current170-162/98.0-93.8 A
Starting current700 %
Cos phi - Power factor0.84
Rated speed990 rpm
EfficiencyIE4 95.6%
Motor pole count6
Enclosure rating (IEC 34-5)55 (Protect. water jets/dust)
Insulation class (IEC 85)F
Motor number92555159
Additional Information
ParameterValue
Minimum Efficiency Index (MEI ≥)0.48
Net weight1,620 kg
Gross weight1,780 kg
Transport volume3.33 m³
Place of originCN
Grundfos pump installation view showing industrial mounting and connection points Grundfos centrifugal pump motor and drive assembly detailed view Grundfos pump internal component diagram showing impeller and seal arrangement Grundfos industrial pump operational view in commercial heating system

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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Tianjin Shiny-Metals Technology Co., Ltd.
Location Room 405A-8, Building 1, Collaborative Development Center, No. 1 Xihuan North Road, Zhongguancun Science and Technology City, Jingjin, Baodi District, Tianjin
Contact Person Wang

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