Grundfos Nb 65-200/205 Non Self Suction Single-Stage Vortex Shell Centrifugal Pump for Commercial Buildings

• Customization: Available
• Max.Head: 17 M
• Max.Capacity: 79 M³/H
• Model NO.: NB 65-200/205 AAF2KESBQQEJW3
• Driving Type: Motor
• Impeller Number: Single-Stage Pump
• Working Pressure: 25bar
• Influent Type of Impeller: Single Suction Pump
• Position of Pump Shaft: Vertical Pump
• Pump Casing Combined: Verticaljoint Surface Pump
• Mounting Height: End Suction Tight Coupling Pump
• Impeller: Closed
• Usage: Heating
• Maximum Ambient Temperature: 55 °c
• Transported Liquids: Water
• Liquid Temperature Range: -25 .. 120 °c
• Liquid Temperature During Operation: 20 °c
• Transport Package: Standard Export Plywood Case or Carton
• Specification: 100 kg
• Trademark: Grundfos
• Production Capacity: 100

Product Description

Grundfos NB 65-200/205 AAF2KESBQQEJW3

Applicable to
Commercial air conditioning
Heating supply
irrigation
End suction tight coupling pump, compliant with EN 733 standard

Reliable NB end power absorption suitable for harsh applications
The Grundfos NB end suction coupling pump is a non self-priming single-stage centrifugal volute pump with an axial suction port, radial discharge port, and horizontal shaft. If you need a multifunctional pump suitable for many demanding applications, NB can ensure reliable and effective supply.
Due to the use of a tightly coupled pump design, installation within a limited area is very simple. The main dimensions of NBG pumps comply with EN733 standards, and all Grundfos end suction pumps are tested according to ISO909906:2012 acceptance level standards before leaving the factory.
 

NB 65-200/205 AAF2KESBQQEJW3 The non self-priming single-stage vortex shell centrifugal pump is designed according to the ISO5199 standard, and its dimensions and rated performance comply with the EN 733 standard (10 bar). The flange is PN 16 type, and its dimensions comply with EN 1092-1 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.

Controller                                            
Frequency converter: None
Pressure sensor: N

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

Technology                                          
Pump speed based on which pump data is obtained: 1460 revolutions per minute
Rated flow rate: 54.37 m³/h
Rated head: 12.98 meters
Actual impeller diameter: 205 mm
Nominal impeller diameter: 200
Shaft - seal configuration: Single
Main shaft seal: BQQE
Shaft seal code: BQQE
Curve tolerance: ISO9906:2012 3B2
Bearing design: Standard

Materials                                                           
Pump casing: Stainless steel
Pump housing: EN 1.4408
Pump casing: ASTM CF8M
Wear ring: Stainless steel
EN 1.4517
ASTM CD4MCuN
Impeller: Stainless steel
EN 1.4408
ASTM CF8M
Internal pump - house coating: No coating
Shaft: Stainless steel
           EN 1.4401
           AISI 316

Installation                                                         
Maximum ambient temperature: 55 ° C
Maximum operating pressure: 16 bar
Pipe connection standard:    EN 1092-1
Entrance size:     DN 80
Export size:     DN 65
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: 3 kW
Power frequency:     50 Hz
Rated voltage:     3 x 220-240D/380-420Y V
Rated current: 10.3/5.9 amperes
Starting current:     730 %
Cos phi - Power Factor:     0.83
Rated speed: 1460 revolutions per minute
Efficiency:     IE3 87,7%
IE efficiency level:     IE3
Motor full load efficiency:     87.7 %
Motor efficiency at 3/4 load:     88.4 %
Motor efficiency at 1/2 load:     88.2 %
Number of motor poles:     4
Encapsulation level (IEC 34-5): IP55
Insulation Class (IEC 85): F
Motor Number:     83V05210
Bearing insulation type N-end:    N

other                                            
Minimum efficiency index, MEI ≥:    0.70
Net weight: 83 kg
Gross weight: 100 kg
Transport volum