Grundfos NBE50125135 Centrifugal Pump

Applications & Use Cases

• Transfer of liquids in food and beverage production lines.
• Circulation within heating, ventilation, and air conditioning (HVAC) systems.
• Boosting water pressure in industrial water supply systems.
• Handling of process water in various industrial applications.
• Use in cleaning-in-place (CIP) systems for equipment sanitation.

Typical Specifications

Typical capacity

For this class of centrifugal pump, flow rates can typically range from a few cubic metres per hour up to several tens of cubic metres per hour, depending on the specific impeller and motor configuration.

Power supply

Units of this type commonly operate on a three-phase industrial electrical supply, typically 400V, 50Hz in the UK, with integrated frequency converters allowing for variable speed control.

Head

The maximum head for a pump in this category typically ranges from 20 to over 100 metres, influenced by impeller design and motor power.

Materials of construction

Commonly, the pump housing and impeller are made from cast iron or stainless steel, with stainless steel being preferred for food processing applications.

Inlet/Outlet connections

Pipe connections are typically flanged or threaded, with sizes commonly ranging from DN50 (2 inches) upwards for industrial units.

Control

The integrated frequency converter and PI controller enable continuously variable control of motor speed, offering precise flow and pressure management.

Frequently Asked Questions

• What does 'non-self-priming' mean for this pump?

  A non-self-priming pump requires the suction line and pump casing to be filled with liquid before starting to operate effectively. It cannot draw air from the suction line to initiate flow.

• What are the benefits of an integrated frequency converter and PI controller?

• Is this pump suitable for viscous liquids?

• What maintenance is typically required for a centrifugal pump?

• Can this pump handle solids?