The Grundfos NB / NBE range comprises close-coupled, single-stage end-suction centrifugal volute pumps built to EN 733, delivering flows up to 1,450 m3/h and heads up to 150 m at 50 Hz. The back pull-out design allows motor and impeller service without disturbing the pump housing or pipework, while NBE variants add an integrated variable-speed drive for constant-pressure and demand-based control. Handling fluid temperatures from -25 C to +140 C with cast iron or stainless steel hydraulics, the range is suited to HVAC heating and cooling, water transfer and supply, industrial process cooling, district energy, and irrigation.

Flow Rate :

Up to 1,450 m3/h (50 Hz)

Head :

Up to 150 m

Motor Power :

0.55 - 200 kW

Power Supply :

3 x 415 V, 50 Hz (single-phase options on small ratings)

Max Fluid Temperature :

-25 C to +140 C

Max Working Pressure :

16 / 25 bar (variant dependent)

Connections :

Flanged, DN 32 - DN 250 discharge

Material :

Cast iron or stainless steel housing and impeller with wear ring