The Liverani INV Flexible Impeller Pump is a high-performance pumping solution featuring inverter-controlled variable speed drive. By adjusting the motor frequency between its minimum and maximum speeds, you can infinitely vary the pump’s flow rate for unmatched efficiency and precision.

Thanks to their supple flexible vanes, INV pumps can handle both light, clean liquids and thick, viscous, or solid-laden slurries. Multiple impeller material options ensure compatibility with different fluids—NBR for fats and fuels, EPDM for chemicals and hot fluids, and natural rubber for water-based liquids. FDA-certified EPDM and NBR versions make the INV a popular choice for electric food-grade applications. Low shear operation preserves the integrity of delicate liquids.

The INV Series also offers dry self-priming capability up to 6m, making it ideal for tank, sump, and container emptying. Gearbox versions with twin output shafts are available for double-headed operation, allowing for either double the flow or double the head compared to standard models.

The standard build comes mounted on a trolley, complete with a CE control panel, integrated inverter, and a 15m remote cable for On/Off, reverse, and speed adjustment. Optional upgrades include a bi-directional waterproof radio controller (up to 100m range), a 4–20 mA connector, and a programmable timing system.

Key Features:

• Inverter-controlled variable speed for precise flow adjustment

• Pulsation-free pumping action for shear-sensitive liquids

• Solids handling capability:

  • MINI: 3mm

  • MIDEX: 5mm

  • MINOR: 10mm

  • MAJOR: 15mm

  • MAXI: 25mm

• Dry self-priming up to 6m (no non-return valve required)

• Operable in both directions via reversing switch

• Pump head rotation and multiple mounting options

• Wide range of connections: DIN, BSP, Triclover, SMS, RJT, Friederich, Garolla, Macron

• Supplied with Garolla connections, hose fittings, clamps, and seals as standard

• Pump heads in SS304 (SS316 optional)

• Dry-run protection and 24V NC contactor for integration with external control devices

• CE control panel with 15m remote cable for operation and speed control

• Optional manual or spring-loaded by-pass depending on model size

• Optional automatic drum filling kits (with stainless steel nozzle, non-return valve, and pressure switch)

• Available accessories: pressure switches, level sensors, inverter drives, remote/radio control

Typical Applications:

• Food and beverage production

• Chemical transfer

• Agricultural liquid handling

• Industrial tank and container emptying/filling

• Shear-sensitive product transfer

Usage Instructions & Safety Information:

• Always follow manufacturer’s installation and operational guidelines.

• Choose the correct impeller material for your application to prevent damage.

• Do not run the pump dry for extended periods.

• Use dry-run protection devices for safety and longevity.

For purchase, inquiries, or bulk orders, contact Industry Safety Nigeria:
Email: sales@safetynigeria.com
Phone: 08064338888, 09134151806
WhatsApp: 09093333374, 08064338888