ISO 2858 & EN 733 Standardized Back Pull-Out Maintenance High Volume Circulation

Grundfos NB / NBG / NK End-Suction Utility Pumps

Heavy-duty, single-stage end-suction centrifugal pumps engineered for continuous utility water transfer, cooling tower circulation, condenser loops, and industrial HVAC in Tarapur & Boisar MIDC manufacturing complexes. Featuring rapid back pull-out construction for non-disruptive motor and impeller maintenance.

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1,000 m³/h

Max Flow Delivery

160 m (16 bar)

Maximum Head Rating

Back Pull-Out

Easy Seal Maintenance

Grundfos NB / NK Range

EN 733 & ISO 2858 • Cast Iron / SS 316

IN STOCK

Close & Long-Coupled Available

Equipment Lineup

Available Models & Equipment

Performance-matched industrial equipment for continuous process, utility, and high-pressure duties.

GrundfosAvailable

End-Suction Centrifugal Pumps

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Flow Rate: Up to 350 m³/h

Head: Up to 140 m

Motor: 0.75 kW to 90 kW

Material: Ductile Iron / Bronze

Technical Selection Matrix

Category Engineering Comparison Table

Compare nominal flow rates, working pressure boundaries, and materials of construction to select your model.

Model Series	Mounting Type	Standard	Rated Flow (m³/h)	Max Head (m)	Impeller MOC	Back Pull-Out	Primary Application
NB 50-160	Close-Coupled (Monobloc)	EN 733	20 – 60	35	Cast Iron / Bronze	✓ Yes	HVAC secondary loops & utility water
NB 65-200	Close-Coupled (Monobloc)	EN 733	40 – 110	55	Cast Iron / Bronze	✓ Yes	Cooling tower circulation & condensers
NB 80-250	Close-Coupled (Monobloc)	EN 733	80 – 220	85	Cast Iron / Bronze	✓ Yes	Chiller plant primary flow & header booster
NBG 100-200	Baseplate (Spacer Coup.)	ISO 2858	100 – 350	65	Cast Iron / SS 304	✓ Yes	Continuous 24/7 industrial cooling & transfer
NK 125-250	Bare Shaft / Baseplate	ISO 2858	150 – 500	90	Cast Iron / Bronze / SS	✓ Yes	Bulk plant water intake & municipal utility
NKG 80-50-200	Long-Coupled Process	ISO 2858	25 – 90	80	SS 316 (1.4408)	✓ Yes	Corrosive chemicals, acids, CIP washing loops

Need duty-point pump curve sizing? Send your required flow (m³/h), total dynamic head (m), and operating liquid to our Boisar engineering desk.

Application Engineering

Typical Installations in Boisar & Tarapur MIDC

Field-proven installations across continuous manufacturing, pharmaceuticals, textiles, and specialty chemicals.

Cooling Towers & Condensers

High-volume recirculation across induced and forced draft cooling towers in chemical plants, plastic extrusion, and steel rolling mills.

                    Heavy S1 Duty • Cast Iron Volute • High m³/h                

Pharma HVAC & Chilled Water

Primary and secondary chilled water distribution for cleanrooms, AHU coils, and process cooling in USFDA-approved Boisar pharma units.

                    Low Vibration • IE3 Premium Motor • -10°C to +120°C                

Chemical & Solvent Transfer

Transferring corrosive wash liquors, neutralised effluents, light solvents, and chemical mixtures in organic chemical synthesis plants.

                    NKG SS 316 • SiC/SiC Seals • Chemical Proof                

Raw Water Intake & Header Boost

Pumping raw MIDC reservoir water into industrial water storage reservoirs and multi-point distribution headers across plant zones.

                    Up to 500 m³/h • Baseplate Skid • Laser Alignment                

Tarapur MIDC & Boisar Support

Need Immediate Dispatch or Duty Sizing for Grundfos Equipment?

Our Boisar technical engineering desk assists with hydraulic pump curves, chemical compatibility checks, and same-day delivery across Palghar industrial complexes.

Call Boisar Desk