Price (Excl 15% VAT)

Original price was: R46,370.00.Current price is: R41,733.00.

Grundfos NK 125-250

Overview

Grundfos NK 125-250 is a PREMIUM non-self-priming, single-stage, centrifugal pump designed according to ISO 5199 with dimensions and rated performance according to EN 733. Flanges are PN 16 with dimensions according to EN 1092-2. The pump has an axial suction port, a radial discharge port and a horizontal shaft. It is of the back pull-out design enabling the removal of the coupling, bearing bracket and impeller without disturbing the motor, pump housing or pipework.

Applications

• District heating plants
• Water supply systems
• Air-conditioning systems
• Cooling systems
• Washdown systems
• Firefighting systems
• Other industrial systems

Features and Benefits

• Standard dimensions according to EN and
ISO standards
• Robust design
• Standard motor
• EN 12756 shaft seal

Flow Rate

    • Rated flow – 305 m³/h

Total Head

    • Rated Head – 20.4 m

Full-range Grundfos NK Pumps:

Downloads

> Download the Grundfos Range

> Download the Grundfos NK Data Booklet

Link to the OEM

> Visit the Official Grundfos NK website

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Grundfos NK 125-250

Price (Ex VAT 15%) 

Original price was: R46,370.00.Current price is: R41,733.00.

Overview

Grundfos NK 125-250 is a PREMIUM non-self-priming, single-stage, centrifugal pump designed according to ISO 5199 with dimensions and rated performance according to EN 733. Flanges are PN 16 with dimensions according to EN 1092-2. The pump has an axial suction port, a radial discharge port and a horizontal shaft. It is of the back pull-out design enabling the removal of the coupling, bearing bracket and impeller without disturbing the motor, pump housing or pipework.

Applications

• District heating plants
• Water supply systems
• Air-conditioning systems
• Cooling systems
• Washdown systems
• Firefighting systems
• Other industrial systems

Features and Benefits

• Standard dimensions according to EN and
ISO standards
• Robust design
• Standard motor
• EN 12756 shaft seal

Flow Rate

    • Rated flow – 305 m³/h

Total Head

    • Rated Head – 20.4 m

Full-range Grundfos NK Pumps:

Downloads

> Download the Grundfos Range

> Download the Grundfos NK Data Booklet

Link to the OEM

> Visit the Official Grundfos NK website

Grundfos NK 125-250

Price (Ex VAT 15%) 

Original price was: R46,370.00.Current price is: R41,733.00.

Grundfos NK 125-250

Technical Features of the Grundfos NK 125-250 – Grundfos Centrifugal Pump

Product name NK 125-250/269 AY1F2AESBQQEXW3
Product No 98544711
EAN number 5711496910135
Price ZAR –

Technical

Pump speed on which pump data are based 1450 rpm
Rated flow 305 m³/h
Pump with motor (Yes/No) N
Rated head 20.4 m
Actual impeller diameter 269 mm
Nominal impeller diameter 250
Shaft diameter 32 mm
Code for shaft seal BQQE
Mechanical seal type Single
Curve tolerance ISO9906:2012 3B
Pump version Y1
Bearing design Standard
Min. pump speed 500 rpm
Max. pump speed 3700 rpm

Materials

Pump housing Cast iron
EN-GJL-250
ASTM class 35
Wear ring Brass
Impeller Cast iron
EN-GJL-200
ASTM class 30
Internal pump house coating CED
Material code A
Code for rubber E
Shaft Stainless steel
EN 1.4301
AISI 304

Installation

Maximum operating pressure 16 bar
Pipe connection standard EN 1092-2
Type of inlet connection DIN
Type of outlet connection DIN
Size of inlet connection DN 150
Size of outlet connection DN 125
Pressure rating for connection PN 16
Grouting (Yes/No) N
Connect code F

Liquid

Pumped liquid Water
Liquid temperature range -25 .. 120 °C
Selected liquid temperature 20 °C
Density 998.2 kg/m³

Electrical data

Rated power – P2 30 kW
Number of poles 4

Controls

Frequency converter NONE
Pressure sensor N

Others

Minimum efficiency index, MEI ≥ 0.57
Net weight 129 kg
Gross weight 139 kg
Shipping volume 0.383 m³
Country of origin ZA
Custom tariff no. 84137090

NK 125-250/269 AY1F2AESBQQEXW3

Non-self-priming, single-stage, centrifugal pump designed according to ISO 5199 with dimensions and rated performance according to EN 733. Flanges are PN 16 with dimensions according to EN 1092-2. The pump has an axial suction port, a radial discharge port and a horizontal shaft. It is of the back pull-out design enabling the removal of the coupling, bearing bracket and impeller without disturbing the motor, pump housing or pipework. The unbalanced rubber bellows seal is according to DIN EN 12756.

 

CONTROLS:
Frequency converter: NONE
Pressure sensor: N
LIQUID:
Pumped liquid: Water
Liquid temperature range: -25 .. 120 °C
Selected liquid temperature: 20 °C
Density: 998.2 kg/m³
TECHNICAL:
Pump speed on which pump data are based: 1450 rpm
Rated flow: 305 m³/h
Pump with motor (Yes/No): N
Rated head: 20.4 m
Actual impeller diameter: 269 mm
Nominal impeller diameter: 250
Code for shaft seal: BQQE
Mechanical seal type: Single
Curve tolerance: ISO9906:2012 3B
Bearing design: Standard
Min. pump speed: 500 rpm
Max. pump speed: 3700 rpm
MATERIALS:
Pump housing: Cast iron
EN-GJL-250
ASTM class 35
Wear ring: Brass
Impeller: Cast iron
EN-GJL-200
ASTM class 30
Internal pump house coating: CED
Shaft: Stainless steel
EN 1.4301
AISI 304
INSTALLATION:
Maximum operating pressure: 16 bar
Pipe connection standard: EN 1092-2
Type of inlet connection: DIN
Type of outlet connection: DIN
Size of inlet connection: DN 150
Size of outlet connection: DN 125
Pressure rating for connection: PN 16
Grouting (Yes/No): N
OTHERS:
Minimum efficiency index, MEI ≥: 0.57
Net weight: 129 kg
Gross weight: 139 kg
Shipping volume: 0.383 m³
Country of origin: ZA
Custom tariff no.: 84137090

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