vinho espumante

Delivery of Sparkling Wine Without Foaming

Na indústria alimentícia, a bomba de lóbulos TORNADO® T.Sano® isenta de óleo transporta suavemente meios sensíveis, como vinhos espumantes e semi-espumantes, enquanto os dosa com extrema precisão.

Devido à sua sensibilidade, os vinhos já são considerados um meio difícil de bombear. Os vinhos carbonatados também abrem áreas problemáticas completamente diferentes.

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TORNADO® T.Sano® All-Metal Rotary Lobe Pump Delivers Sparkling Wine Without Foaming


Devido à sua sensibilidade, os vinhos são considerados um fluido difícil de bombear, enquanto os vinhos carbonatados apresentam desafios completamente diferentes: Cada variedade, por exemplo, possui uma sobrepressão especial de dióxido de carbono que deve ser observada. Ao mesmo tempo, o CO2 liberado aumenta a tendência da bebida à espuma, o que prejudica a qualidade da mercadoria.


Whether lively or brisk, bubbles in a carbonated, champagne-style sparkling wine, for example, make you tingle. The amount and pressure of the CO2 are therefore not left to chance, but rather each variety has its own characteristic formula. This formula even determines the typification: Only wines with a carbon dioxide overpressure higher than 3 bar at 20 °C are fully sparkling wines (spumante), while those from 1 to 2.5 bar are semi-sparkling wines (frizzante). To guarantee the desired amount and pressure of carbon dioxide, the entire production facility of the winery in Piedmont therefore operates under controlled pressure conditions up until the moment of isobaric bottling. Nitrogen is used as an aid to create still wines at 0 bar and particularly fizzy wines at 5 bar according to variety. This protects not only the special composition of the wine, but also prevents undesired foaming, which can make complete batches unusable in extreme cases.


rpm operational speed


The function of the pump is based on two rotary lobes, which counter-rotate, thus transporting the medium from the suction to the pressure side. Since pumping is performed purely according to the positive displacement principle here, there is no possibility of pressure fluctuations or shearing forces. "In actuality, this type of pump does not pressurise the medium but rather only pumps against the existing counter-pressure – 1 to 8 bar in this case", says Alessandro Modenini, the NETZSCH sales representative responsible for the project. A gentle, continuous delivery without any turbulence that could lead to foam is guaranteed and the organoleptic characteristics of the respective wine remain reliable.

An additional advantage of this technology is the constant flow rate, which can be precisely monitored in contrast with pumping with gas pressure. The delivery volume does not depend on the viscosity or consistency of the medium and is determined solely by the speed of the rotary lobe. In this way, the product can be dosed precisely using the speed control, which simplifies bottling and minimises production fluctuations. The rotary lobe pump also is self-prim so that storage containers like wine tanks can be emptied almost completely without great effort. Since excess must be disposed of, this improved yield could noticeably increase the production profits of the winery in comparison with the previous method.

To meet food safety guidelines in addition to the economic aspects, all components used in the T.Sano® rotary lobe pump that come into contact with the medium are designed in stainless steel. Forced ventilation was also integrated for safety reasons to protect the motor against overheating. T.Sano® has therefore been running malfunction-free at the Piedmont company for a year and pumping 7 to 10 m³ wine, both semi-sparkling and sparkling wine an hour at low speed.

TORNADO® T.Sano® rotary lobe pump

Medium: Fully and semi-sparkling wines
Pressure: 1-8 bar
Pressure of the CO2 : 1-3 bar
Pressure of the carbon dioxide: 0-5 bar

TORNADO® T.Sano® All-Metal Rotary Lobe Pump by NETZSCH Pumps & Systems