Liverani Miniverter Flexible Impeller Pump

Viscous Fluids & Food Grade Pump

Miniverter Mini
Miniverter Midex
Key Specifications
Max Flow Rate 86lpm
Max Head 27M
Max Temperature 100°C
Max Viscosity 50,000 cP
Solids 5mm
Size 3/4" to 1 1/2"
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The Liverani Miniverter Flexible Impeller Pump offers all the advantages of the FEP MINI and MIDEX pumps but with integrated variable speed control. This combined with the SS316 materials of construction and various sealing and impeller material options, enables these flexible vane pumps to be used in a plethora of different applications.

Flexible impeller pumps are very versatile in applications that are suitable for thanks to several design benefits. Firstly, thanks to their supple vanes they are able to handle not only clean, light fluids, but also viscous, solid laden slurries. Secondly, the multiple materials the impellers are made out of mean they are compatible with many fluids e.g. NBR for fats and fuels, EPDM for chemicals and hot fluids and natural rubber for water based liquids. Flexible vane pumps with EPDM and NBR impellers are able to be supplied with FDA Certification, making them a popular electric food grade pump solution. Their low shear operation also makes the ideal for handling delicate fluids that can be altered by other pump designs.

Flexible impeller pumps are also renowned for their dry self-priming capability, making them ideal for applications where good suction lift capacity is needed such as the emptying of tanks, sumps and other containers.

It is possible to adjust the speed range of the Miniverter flexible impeller pump from 285 to 1400 rpm, and to choose the direction of flow using the integrated potentiometer and rocker switch fitted to the terminal box whilst still retaining its standard IP55 protection rating. Carrying handles and trolleys are available as optional accessories to increase the Miniverter flexible vane pumps’ portability when being used for a variety of site applications.

Read more about the working principle of flexible impeller pumps and what processes they are commonly selected for here.

Features of the Miniverter Series Flexible Vane Pump:

  • Close coupled flexible impeller pump with variable speed (inverter dial integral to terminal box)
  • Smooth, pulsation free flow for the easy pumping of shear sensitive liquids.
  • Solids passage capability - 3mm (MINI), 5mm (MIDEX)
  • Self priming up to 6m without requiring a non return valve.
  • Pumps can be operated in either direction through a reversing switch mounted on the panel.
  • Pump head can be rotated and mounted in several positions.
  • Wide range of connection types available including DIN, BSP Male & Female, Triclover, SMS, RJT, Friederich, Garolla, and Macron
  • Stainless Steel AISI 304 Pipe Fittings for easy integration of the pump into existing applications are available.
  • NOTE: flexible vane pumps are supplied with BSP connections as standard with hose fittings, clamps and seals included.
  • Flexible vane pump heads are SS316.
  • Optional manual (MINI) and spring loaded (MIDEX) by-pass, these units can also be used with nozzles for dispensing applications.
  • Automatic drum filling kits complete with stainless steel nozzle, non return valve & pressure switch are available if required
  • Optional carry handles and trolleys to increase portability

FAQs

Flexible impeller pumps are part of the positive displacement pump family. They consist of a rotating rubber impeller with supple vanes attached. As the casing is smaller than the vanes, they must bend and then straighten as the impeller turns to conform to shape of the pump internal walls. The vacuum created push the fluid round from the inlet to the outlet.

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