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Grundfos NBG 250-200-450/455 Non Self Priming Single Stage Volute Centrifugal Water High Flow Volute Casing Pump

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Grundfos NBG 250-200-450/455 Non Self Priming Single Stage Volute Centrifugal Water High Flow Volute Casing Pump

MOQ:	1
Price:	200-1000
Standard Packaging:	Wooden Box
Delivery Period:	within 15 workdays
Payment Method:	L/C,D/A,D/P,MoneyGram,Western Union,T/T
Supply Capacity:	100

Detail Information

Product Description

Detail Information

Brand Name

Grundfos

Model Number

NBG 250-200-450/455 AIAF2A1ESBQQEYW3

Transported Liquids:

Water

Liquid Temperature Range:

-25 .. 120 °c

Liquid Temperature During Operation:

20 °c

Density:

998.2 Kg/M³

Rated Flow Rate:

658.5 M³/H

Rated Head:

64.1 M

Power Supply Frequency:

50 Hz

Rated Voltage:

3 X 380-400/660-690 V

Net Weight:

1570 Kg

Gross Weight:

1760 Kg

Maximum Operating Pressure:

16 Bar

Maximum Ambient Temperature:

40 °C

Highlight:

Single Stage grundfos centrifugal water pump

Volute grundfos centrifugal water pump

High Flow grundfos centrifugal water pump

Product Description

End-suction close-coupled single-stage pump
NBG 250-200-450/455 AIAF2A1ESBQQEYW3
Number: 93351125

Applications:

Commercial heating
Commercial air conditioning
Commercial water pressure boosting
District heating
Industrial cleaning processes
Heating supply
Desalination
Municipal water transmission and distribution
Irrigation
Community and building water supply

Compliance: Short-coupled pump in accordance with ISO 2858

NBG 250-200-450/455 AIAF2A1ESBQQEYW3
The non-self-priming single-stage volute centrifugal pump is designed in accordance with ISO 5199, and its dimensions and rated performance comply with ISO 2858 (16 bar). The flanges are of PN 16 type, with dimensions conforming to EN 1092-2. The pump is equipped with an axial suction port, a radial discharge port, a horizontal shaft, and a back-pull-out design, allowing maintenance personnel to disassemble the motor, motor bracket, cover, and impeller without loosening the pump casing or pipelines. The unbalanced O-type shaft seal meets the requirements of DIN EN 12756. An air-cooled asynchronous motor is closely coupled to the pump.

Grundfos NBG 250-200-450/455 Non Self Priming Single Stage Volute Centrifugal Water High Flow Volute Casing Pump 1

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: 1,490 rpm
Rated flow rate: 658.5 m³/h
Rated head: 64.1 m
Impeller actual diameter: 455 mm
Impeller nominal speed: 450
Impeller type: Standard
Shaft seal configuration: Single
Main shaft seal: BQQE
Shaft seal code: BQQE
Curve tolerance: ISO9906:2012 3B
Bearing design: Standard

Materials:

Pump housing: Cast iron
- Pump housing: EN-GJL-250
- Pump housing: ASTM class 35
Wear ring: Brass
- Wear ring material: CuZn34Mn3AI2Fe1-C
Impeller: Cast iron
- Impeller material: EN-GJL-200
- Impeller material: ASTM class 30
Internal pump housing coating: CED
Shaft: Stainless steel
- Shaft material: EN 1.4462

Installation:

Maximum ambient temperature: 40 °C
Maximum operating pressure: 16 bar
Pipeline connection standard: EN 1092-2
Inlet size: DN 250
Outlet size: DN 200
Pressure rating for pipe connection: PN 16
Bearing lubrication: Grease
Pump casing with support feet: Yes
Yes = With support block, No = Without support block: N

Electrical Data:

Motor model: 315LA
Rated power - P2: 160 kW
Power supply frequency: 50 Hz
Rated voltage: 3 x 380-400/660-690 V
Rated current: 283-269/163-156 A
Starting current: 770 %
Cos phi - Power factor: 0.89
Rated speed: 1,490 rpm
Efficiency: IE4 96.6%
IE efficiency class: IE4
Motor full-load efficiency: 96.6 %
Motor efficiency at 3/4 load: 96.4 %
Motor efficiency at 1/2 load: 95.5 %
Motor pole count: 4
Enclosure rating (IEC 34-5): 55 (Protect. water jets/dust)
Insulation class (IEC 85): F
Motor number: 92555138
Bearing insulation type N end: COATED RING

Other:

Minimum Efficiency Index, MEI ≥: 0.44
Net weight: 1,570 kg
Gross weight: 1,760 kg
Transport volume: 3.33 m³

Grundfos NBG 250-200-450/455 Non Self Priming Single Stage Volute Centrifugal Water High Flow Volute Casing Pump 2

Grundfos NBG 250-200-450/455 Non Self Priming Single Stage Volute Centrifugal Water High Flow Volute Casing Pump 3

Grundfos NBG 250-200-450/455 Non Self Priming Single Stage Volute Centrifugal Water High Flow Volute Casing Pump 4

Grundfos NBG 250-200-450/455 Non Self Priming Single Stage Volute Centrifugal Water High Flow Volute Casing Pump 5

Tags:

water pressure booster,

pump booster water,

household water booster pump