liverani

Flexible Impeller Pumps


Versatile positive displacement pumping technology make these the "Work Horse" pumps of any winery cellar.


How-to Videos


Operating features and benefits

Pump principle - The flexible impeller vanes deform slightly to pump the liquid inside the pump and move it to the discharge port at a stedy flow rate. This principle combines gentle pumping with a high self-priming

  • Self-priming (automatic priming of the product up to 6 m even from dry start-up).
  • Reversible operation (the pump can operate in both rotation directions, which permits return of excess liquid without any manual intervention, and also allows easy emptying of pipes on completion of liquid transfer).
  • Excellent priming action even at a low revolutions, which allows the transfer of soft and fragile fluids with viscosities up to 50.000 cp, or with solid particles in suspension, without causing air-locking, avoiding emulsifying or damaging particles.
  • Smooth steady pumping action of the product without pressure spikes (even flow rate ideal for filling, dosing or filtration)
  • The pump can work in all mounting positions.

Performances

  • Flows: 0 up 72.000 litres/hour
  • Viscosities: up to 50.000 cp
  • Temperature of fluids: up to 100 °C
  • Maximum differential pressure: 4 bar

Pump body:
  • stainless steel AISI 304/316

EP Series
The EP series is an economical and simple on/off, 1 or 2 speed, reversible pump with direct drive from the motor.

GR Series
The GR Series of pumps designates the belt drive line of pumps from Liverani and they can be found in wineries around the world. They are offered with 1 or 2 speed reversible controls with optional wheeled carts for the larger models.

VA Series
The VA Series designates the line of pumps from Liverani offering Mechanical Variable Speed drives. This allows you to control the speed of the pump while its running via a mechanical adjustment wheel on the side of the pump from a almost zero to full speed.

INV Series
The Liverani INV Series is the most common pump we sell. This series offers a variable frequency drive control with potentiometer to dial in the exact speed you require and comes stock with a 15 meter remote control with on/off, direction and speed control all available remotely while the pump is in use

Basic Electric Pumps: EP Series
Type Speed rpm l/hr
EP Mini 3/4" 1 900 1000
1400 1620
1400 1620
EP Midex 1 1/4" 1 900 3840
1400 5760
2 1400 5760
700 2880
1 900 3840
EP Minor 40 1 900 6900
1400 10000
2 1400 10000
900 6900
EP Major 60 1 470 12000
700 18000
900 22500
EP Maxi 80 1 470 36000
600 43800

Belt Driven Pumps: GR Series
Type Speed rpm l/hr
GR Minor 40 1 300 2400
470 3600
700 5000
2 470 3600
235 1800
700 5000
350 2750
GR Major 60 1 470 12000
700 18000
2 470 12000
235 6300
700 18000
350 9000
GR Maxi 80 1 470 36000
600 43800

Pumps with Mechanical Adjustment (VA) Speed or Variable Frequency Drive (INV)
Type VA INV rpm l/hr
Mini 3/4" no yes min 180 150
600 700
900 1000
max 1400 1620
Midex 1 1/4" no yes min 180 600
600 2600
900 3840
max 1400 5760
Minor 40 yes yes min 175 1320
350 2750
470 3600
700 5000
max 900 6900
Major 60 yes yes min 175 4320
350 9000
470 12000
700 18000
max 900 22500
Maxi 80 yes yes min 150 15000
300 24600
470 36000
max 600 43600
Maxi Double 2Q no yes min 175 14100
235 19200
350 27600
maax 470 36000