Winegrowers Supplies - Peristaltic pumps
The internal diameter of the hose must be large enough so that significant turbulence does not occur in the flow:-
20 mm internal diameter, up to 3,500 litres/hour,
25 mm internal diameter, up to 5,470 litres/hour,
32 mm internal diameter, up to 8,960 litres/hour,
38 mm internal diameter, up to 12,600 litres/hour,
50 mm internal diameter, up to 21,900 litres/hour,
60 mm internal diameter, up to 31,500 litres/hour.
Where pump speeds are stated (litres/hour), this is the maximum, at zero pressure.
The speed reduces as pump-head-height increases, typically 5000 litres/hour would reduce to 3000 litres/hour at 2.0 bar pressure.
A bypass, where specified, will allow speed to be reduced and provide pressure control.
Peristaltic pumps have a rotor with 2 (or 3) rollers which press gently on a flexible hose (usually silicone rubber) causing the fluid inside the hose to be pushed along it,
in a delicate and gentle way.
The alternation between compression and relaxation of the hose generates a vacuum which then sucks the fluid, and consequently produces a constant flow.
These pumps are suitable for wine, fruit juices, milk, oil, also semi-solid products (crushed and even whole grapes, grapes after destemming, tomatoes etc).
Peristaltic pump, with very large 60 mm internal diameter hose: 7500 Euros
Rotations: 14/70 per minute
Flow for wine: 3000 to 15,000 litres/hour
Flow for destemmed grapes: 1400 to 10,000 litres/hour
Fittings: 60 mm diameter, DIN65 threads
Power: 380 volts, 3 kWatt
Dimensions: 1440 x 710 x 1250 mm
Weight: 200 kilos
Control panel with reverse feature
Inverter electronic speed regulator
Stainless steel pump body AISI 304
Rotor with two rollers mounted on bearings
Motor reducer directly applied on the bearing element
AISI 304 stainless steel self supporting stand
Double hose of rubber
Safety pressure switch
Automatic lubrication of the rubber hose
Prices shown are exclusive of Vat.
Delivery usually will need to be charged at cost.