NNP Mono Pump

• Transferring viscous food products such as sauces, pastes, and doughs.
• Pumping shear-sensitive liquids like yoghurts and creams without damage.
• Handling products with small particulates, such as fruit pulps or purees.
• Dosing and metering applications requiring precise flow rates.
• Moving slurries and waste products within food processing facilities.

Typical capacity

For this class of mono pump, capacities typically range from a few hundred litres per hour up to several cubic metres per hour, depending on the specific rotor/stator geometry and speed.

Power supply

Units of this type commonly operate on a 3-phase electrical supply, typically 400V, 50Hz in the UK, with motor power varying based on required flow and pressure.

Operating principle

Mono pumps, also known as progressive cavity pumps, operate using a single helical rotor that rotates within a double helical stator, creating sealed cavities that progress the product.

Materials of construction

For food processing applications, the wetted parts are typically constructed from 316-grade stainless steel, with stators made from food-grade elastomers such as NBR, EPDM, or FKM.

Typical inlet/outlet sizes

Inlet and outlet connections commonly range from 50mm to 100mm, often featuring hygienic clamp (e.g., Tri-Clamp) or flanged connections.

Mounting configuration

Many units are skid-mounted for portability and ease of integration into existing process lines, allowing for horizontal operation as described.

• What is the primary advantage of a mono pump over a centrifugal pump for food products?

  Mono pumps are positive displacement pumps, offering a gentle, pulsation-free transfer suitable for viscous and shear-sensitive products. Centrifugal pumps are generally better for low-viscosity liquids.

• Can this pump handle solids?

• What kind of maintenance does a mono pump typically require?

• Is this pump suitable for CIP (Clean-in-Place) systems?

• What pressure can a mono pump typically generate?

Food processing pumps are valued for reliability and durability in continuous operations. Buyers typically prioritise corrosion resistance, hygiene compliance, and consistent flow rates. When purchasing used units, inspecting seals, impellers and motor condition proves essential. Industry sentiment favours models with straightforward maintenance requirements and availability of spare parts. Stainless steel construction and gentle handling capabilities for delicate products are consistently sought features.

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