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Grundfos 1/2HP 3/4HP Centrifugal Water Pump For Commercial Heating

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Grundfos 1/2HP 3/4HP Centrifugal Water Pump For Commercial Heating

Brand Name : Grundfos

Model Number : NK 40-225/250 AA1F1S3ESBQQEJW3

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: 1-3 months

Delivery Time : 15~30 workdays

Packaging Details : Standard Export Plywood Case or Carton

Liquid Conveyed : Water

Liquid Temperature Range : -25 .. 120 °c

Liquid Temperature During Operation : 20 °c

Density : 998.2 Kg/M³

Rated Flow Rate : 31.78 M³/H

Rated Head : 18.25 M

Maximum Operating Pressure : 10 Bar

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End-suction long-coupled single-stage pump
NK 40-225/250 AA1F1S3ESBQQEJW3
Number: 93330814


Applications:


  • Commercial heating


Compliance: Standard pump in accordance with EN 73



NK 40-225/250 AA1F1S3ESBQQEJW3
The non-self-priming single-stage volute centrifugal pump is designed in accordance with ISO 5199, and its dimensions and rated performance comply with EN 733. The flanges are of PN 10 type, with dimensions conforming to EN 1092-2. The pump is equipped with an axial suction port, a radial discharge port, and a horizontal shaft. It adopts a back-pull-out design, allowing maintenance personnel to disassemble the coupling, bearing bracket, and impeller without loosening the motor, pump casing, and pipelines. The unbalanced O-type shaft seal meets the requirements of DIN EN 12756. An air-cooled base-mounted asynchronous motor is installed on the pump, with both the pump body and the motor mounted on the same base frame.



 Grundfos 1/2HP 3/4HP Centrifugal Water Pump For Commercial Heating


Controller:


  • Frequency converter: None
  • Pressure sensor: N


Liquid:


  • Liquid conveyed: Water
  • Liquid temperature range: -25 .. 120 °C
  • Liquid temperature during operation: 20 °C
  • Density: 998.2 kg/m³


Technical Data:


  • Pump speed basis: 1,440 rpm
  • Rated flow rate: 31.78 m³/h
  • Pump with motor: Y
  • Rated head: 18.25 m
  • Impeller actual diameter: 250 mm
  • Impeller nominal speed: 225
  • Main shaft seal: BQQE
  • Shaft seal code: BQQE
  • Mechanical seal type: Single
  • Curve tolerance: ISO9906:2012 2B
  • Bearing design: Standard


Materials:


  • Pump housing: Cast iron
    • Pump housing: EN 1561 EN-GJL-250
    • Pump housing: ASTM A48-35
  • Impeller: Stainless steel
    • Impeller material: EN 1.4308
    • Impeller material: ASTM A351 CF8
  • Internal pump housing coating: Painting
  • Shaft: Steel
    • Shaft material: EN 1.0503/1.4301
    • Shaft material: AISI 1045/304


Installation:


  • Maximum ambient temperature: 40 °C
  • Maximum operating pressure: 10 bar
  • Pipeline connection standard: EN 1092-2
  • Inlet connection type: DIN
  • Outlet connection type: DIN
  • Inlet size: DN 65
  • Outlet size: DN 40
  • Pressure rating for pipe connection: PN 10
  • Coupling type: Flexible w/o spacer
  • Base frame design: C-channel
  • Base frame code: 240
  • Grouting (Yes/No): N


Electrical Data:


  • Motor model: 100L
  • Rated power - P2: 3 kW
  • Power supply frequency: 50 Hz
  • Rated voltage: 3 x 220-230/380-400 V
  • Rated current: 10.9-10.4/6.3-5.99 A
  • Starting current: 950 %
  • Cos phi - Power factor: 0.8
  • Rated speed: 1,440 rpm
  • Efficiency: IE4 90.4%
  • IE efficiency class: IE4
  • Motor full-load efficiency: 90.4 %
  • Motor efficiency at 3/4 load: 90.7 %
  • Motor efficiency at 1/2 load: 90.1 %
  • Motor pole count: 4
  • Enclosure rating (IEC 34-5): 55 (Protect. water jets/dust)
  • Insulation class (IEC 85): F
  • Motor number: 92816757
  • Bearing insulation type N end: N


Other:


  • Minimum Efficiency Index, MEI ≥: 0.70
  • Net weight: 130 kg
  • Gross weight: 153 kg
  • Transport volume: 0.428 m³
  • Place of origin: CN

Grundfos 1/2HP 3/4HP Centrifugal Water Pump For Commercial HeatingGrundfos 1/2HP 3/4HP Centrifugal Water Pump For Commercial Heating

Grundfos 1/2HP 3/4HP Centrifugal Water Pump For Commercial Heating

Grundfos 1/2HP 3/4HP Centrifugal Water Pump For Commercial Heating


Product Tags:

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Grundfos 1/2HP 3/4HP Centrifugal Water Pump For Commercial Heating Images

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