The Grundfos NB40-200 Series is a high-performance, close-coupled end-suction pump range engineered for applications requiring robust, high-flow and high-head pumping of clean or lightly contaminated liquids. These non-self-priming, single-stage centrifugal pumps are designed with an axial suction port and radial discharge port in a compact horizontal configuration to deliver smooth, energy-efficient flow at demanding pressures.

The NB40-200 is equipped with a hydraulically and dynamically balanced impeller to ensure quiet, stable operation and long-term reliability, even under high-pressure conditions. Its heavy-duty cast iron housing combined with corrosion-resistant internal wear parts provides excellent durability and resistance to wear when pumping thin, clean or slightly contaminated liquids without abrasive or fibrous solids.

Each pump in the NB40-200 Series is directly coupled to a powerful IEC-flanged three-phase AC motor running at 2900 RPM, delivering flow rates up to 1100 LPM and heads up to 65 metres (650 kPa). A reliable O-ring seal between the pump housing and cover ensures secure, leak-free operation under constant duty.

With its space-saving close-coupled design and straightforward maintenance, the NB40-200 Series is an ideal choice for high-capacity water supply, industrial boosting, cooling systems, HVAC circulation, process water transfer and irrigation projects requiring steady performance at higher pressures.

FEATURES

• Non-self-priming, single-stage, close-coupled centrifugal pump
• Axial suction and radial discharge design for optimised flow handling
• Hydraulically and dynamically balanced impeller for vibration-free high-pressure operation
• Rugged cast iron pump housing with corrosion-resistant internal wear parts
• O-ring seal for secure, leak-free performance under demanding conditions
• Direct coupled IEC flanged three-phase AC motor (2900 RPM)
• DN65 inlet / DN40 outlet with PN16 flanged connections
• Handles flow up to 1100 LPM and heads up to 65 metres (650 kPa)
• Perfect for high-volume water supply, industrial boosting, HVAC, cooling systems and large-scale irrigation