I don't recommend rubber-impeller pumps for winemaking, as mohno-pumps are far
superior; however, rubber-impeller pumps are cheaper and will pump liquids with some suspended
solids, so they can be useful for certain purposes: pumping press juice,
racking from one tank to another. They are particularly useful for pumping very thick
liquids (tomato juice, condensed milk etc).
Winegrowers Supplies
- Rubber-impeller pumps
They are not suitable for wine filtration, because of the pressure fluctuation caused by the rubber impeller:-
| As the impeller revolves in the pump casing, a partial vacuum is created at the suction side of the pump by an increase volume, drawing in fluid. This fluid is then transported to the other side of the pump in the spaces between the vanes and the fixed casing. At the discharge side, the available volume is decreased and the resultant increase in pressure forces the fluid into the outlet line. The change in volume is the result of a curvature of the vanes in the pump body. | |||||
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| The impeller is made of an extremely elastic rubber which is lubricated and cooled while being in contact with the pumping medium. There are different rubber materials available: NBR (Perbunan), EPDM and others. | |||||
Spiral reinforced wine-quality hard-PVC tubing is often used on the inlet side to prevent the tubing collapsing under suction.
Theo Schneider - Ökoflow:
Hard nylon pump body, stainless steel impeller shaft,
with carrying handle. 1" bsp male stainless steel thread connections.
Ökoflow 3000, up to 3000 litres/hour, 230 volt (0.37 kWatt) or 380 volt, 12 kilos, £259
Ökoflow 5000, up to 5000 litres/hour, 230 or 380 volt, £322
Stainless steel body and impeller shaft, pumps in one direction only, 1" bsp male stainless steel threads.
230 or 380 volts.Theo Schneider - Phoenix:
Models from 3000 to 48,000 litres/hour, 1 or 2 speed and variable speed options.
Stainless steel body with polished internal surfaces, option of built-in bypass to adjust flow rate,
choice of thread connections, reversible motor for pumping in either direction, mounted on a trolley.
Phoenix 3000: up to 3000 litres/hour, maximum 3.5 bar, 1400 rpm, 0.37 kWatt, 15 kilos:-
single speed, 230 or 380 volt,
without or with bypass flow regulation:-
380 volt, £498
230 volt, £555
380 volt with bypass, £532
230 volt with bypass, £589
or can be used with a separate Variable Speed Drive for electronic speed regulation, 920 Euros extra.
the drive can be used for other machines not only for the pump – maximum 1.1kW.
Phoenix 3000: two speed, 380 volt, 1500/3000 litres/hour, with bypass.
Phoenix 6000: up to 6000 litres/hour, maximum 5 bar, 1400 rpm, 0.75 kWatt, 18 kilos:-
380 volt, £532
230 volt, £589
380 volt with bypass, £566
230 volt with bypass, £624
Phoenix 12000: up to 12000 litres/hour:-
380 volt, £771
230 volt, £815
380 volt, with bypass, £805
230 volt, with bypass, £872
Mevario - with mechanical speed regulation, 380 volt,
Ervario - with electronic speed regulation, 380 volt,
Prices shown are exclusive of Vat.
Delivery will usually need to be charged at cost.