Winegrowers Supplies
- Carbonators and carbonation
The following approximations relate to pressure of carbon dioxide (CO2) at 20 °C at sea level:
1 volume CO2 = 1 atmosphere = 1 bar = 100 kilopascals = 14.7 psi (pounds per
square inch) = 1.8 grams of CO2 per litre volume.
The pressure in a bottle of 'fully' sparkling wine, such as Champagne is typically 6.0
bar, but may be as low as 5.0 bar.
European Union wine regulations define a Sparkling Wine as any wine with an
excess of 3 bar pressure. These include German Sekt, Spanish Espumoso,
Italian Spumante and French Cremant or Mousseux wines.
Naturally semi-sparkling wines are defined as those with between 1 and 2.5 bar
pressures and include German spritzig, Italian frizzante and French pétillant wines.
Carbonated sparkling wines usually have 3 to 5 bar pressure, semi-sparkling wines typically have 2 bar.
Cider which is in a closed bottle is termed Sparkling if, due to the
presence of CO2, the pressure in the bottle is not less than 3 bars in excess of atmospheric pressure.
The pressure in a bottle of French cider is typically x.x bar.
The pressure in a bottle of English cider is typically x.x bar.
In bottled beers the typical pressure is:-
Stouts and porters: 1.5 to 2.2 bar.
Lagers, Ales, Ambers, most beers: 2.2 to 2.6 bar.
Highly carbonated ales, Belgian lambics, wheat beers: 2.6 to 4.0 bar.
2 bottle model, 1490 Euros (£1355)
4 bottle model, 2574 Euros (£2340)
CO2 gas regulator with heater, 269 Euros
Kit with seals, 9 Euros (it's recommended to keep a spare set)
Kit for a different bottle neck, 45 Euros
For effective carbonation the liquid should be cooled to around 4 oC.
A carbon dioxide pressure cylinder needs to be connected to the machine.
After filling, 2 or 4 of the glass bottles (up to 1 litre volume) are placed on the machine. The apparatus rotates so that the liquid enters the stainless steel spherical pressure vessel where the carbonation takes place.
Only
a moderate level of carbonation can be achieved, up to the level of frizzante or pétillant.
This gentle carbonation can enhance bouquet and flavours.
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CarboFresh - dosing controller:-
Beer, cider and some low acidity 'flat tasting' white and rosé wines, can benefit from
binding in of fine bubbles of CO2, becoming fresher and more aromatic.
CO2 in red wine is not advantageous, it can be driven out by dosing with nitrogen through the
CarboFresh processor.
For still wine:-
CarboFresh Standard: 700 to 2000 litres/hour, up to a maximum total dosage of 1.5 grams/litre.
or
CarboFresh ST: 3 models (up to 10,000, 20,000 or 30,000 litres/hour), up to
a maximum total dosage of 1.5 grams/litre.
For Sparkling Wine:-
CarboFresh de Luxe: 9720 Euros
1000 to 10,000 litres/hour depending on the injector size (e.g. size 3 is 2000 to 3000 litres/hour.
Up to a maximum total dosage of 3.0 grams/litre, in combination
with a counter-pressure filler and pressure tank.
The housing, injector, injector housing, mixer and other parts, are in 1.4571 stainless steel.
Includes 5 metres of CO2 tubing with coupling, etc.
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The following carbonators are designed to carbonate and deliver sparkling liquid to a counter-pressure
filling machine, at much higher pressures.
From experience a larger carbonator than needed for the speed of the filler, allows the liquid to settle better
prior to being drawn off to the filler.
DUR-SAT5HL Automatic Carbonator: Euro 17,300
Up to 500 litres/hour, dependent on the type of beverage, the temperature and the amount of CO2 gms/litre.
The saturation achieved by the carbonator produces very fine
bubbles, which are consequently long lasting in open containers.
The consumption of CO2 is only the
quantity mixed in the liquid, there is no waste.
The saturation is obtained by a double effect pump, which sucks the wine and compresses it in a chamber at a very high
pressure.
Successively it passes through an injector, creating a vacuum, thus becoming incorporated in the liquid.
The mixture then passes into a pre-saturation column where the possible residual air left in the wine is separated out.
Following the pre-saturation phase the liquid flows into the saturation column where is distributed like rainfall over the entire cylinder surface. While falling it passes through porcelain filters specifically made to subdivide the liquid. When saturation is complete the liquid is deposited in a tank within the same column, it is then ready for bottling.
The machine is equipped with a second pump, which sucks the liquid from the saturator and transfers it to a separate counter-pressure filling machine (not part of this equipment) thus creating an over-pressure.
The machine is fitted with a special electro-level device which controls the minimum and the maximum level.
All the controls are grouped on a panel. The machine is made using high quality materials
and AISI 304 stainless steel.
Delivery time: normally 45 to 60 days from order confirmation.
Options:-
Base-frame covered in Aisi 304 stainless steel, Euro 250
CO2 heater station with pressure adjuster, Euro 870
Automatic control of the carbonating pressure, Euro 3,800
or:-
MagGio single column in-line carbonators, up to 5 bar pressure:-
MagGio model AA - up to 300 litres/hour*, Euro 17,300
MagGio model AB – up to 500 litres/hour*, Euro 18,100
The machines have been developed and refined to provide effective and operationally efficient carbonated preparation of a liquid beverage.
The parts of the pump, filter, valves, pipes and all other product contact parts are in top grade stainless steel
(internally and externally polished and constructed for
hygiene control) except where glass or food quality rubber or plastic are used for seals or similar components.
The components are mounted on a rectangular stainless steel AISI 304 base.
The machine comprises:-
- an electrical control panel in stainless steel, with safety devices and contactors, overloads,
fuses and transformer; 3-phase 380 volt supply. The electrical devices are water-resistant to EU standards.
- a CO2 inlet with non-return valve.
- a CO2 recovery pipe to feed the pre-carbonation column (on models from 1200 litres/hr upwards).
- a stainless steel vessel for incoming liquid complete with cover, control level and valve; with automatic flow control.
The operational cycle commences when the incoming liquid is fed to the stainless
steel vessel. This can be by gravity feed or by external pump (not included in the unit).
The recommended temperature of the incoming liquid is 2 °C, a separate pre-chiller is required.
The incoming liquid is then delivered by a pump (carbonating pump) into the stainless steel
carbonating column (pressure tank) where there is a CO2 atmosphere at a pressure corresponding to the
carbonation degree established for the liquid. The CO2 mixes with the
liquid, which is carbonated in the column at the pre-set pressure, not exceeding 5 bar. An
automatic level system operated by probes (fitted inside the carbonation column)
connected to the centrifugal pump, demands or stops the liquid flow. Pressure security valves are installed.
This stainless steel carbonating column contains a special stainless steel perforated
disk distributor. Through this distributor the drink is dispersed to increase
the surface area to allow the completion of the carbonating process.
The dispersed liquid then passes over a series of stainless steel inclined
plates thus allowing for CO2 saturation across a large surface area.
On models from 1200 litres/hr upwards there is a vertical centrifugal pump which first passes the liquid through a
pre-carbonation column, where unmixed CO2 is re-used, before it is delivered to the main carbonating column.
The fully carbonated liquid is retained at the bottom of the tank for stabilisation
prior to transfer via the overpressure pump to the filling machine.
The overpressure pump is particularly effective in maintaining control over
highly carbonated liquids. This integral, all stainless steel, pump allows the
application of a constant overpressure during the product transfer.
The complete cycle sequence is fully automatic and free of operator intervention. The machine operates on a demand cycle automatically sequenced by the counter-pressure filling machine. The operation cycle is controlled by several level control devices and safety valves to avoid faults.
These machines have been in use for many years with very good results.
Delivery time: normally 90 days from order confirmation.
Optional: CO2 Station, model STAR 1, for a single CO2-cylinder, Euro 1260
complete with:
- automatic stainless steel gas warmer in oil bath, model CALOR COMPACT.
- 2 CO2 reducers.
The CO2 stations, of compact dimensions, grant that the carbonic anhydride contained in suitable CO2-cylinders is duly warmed before reaching the machines utilising the CO2.
The model STAR is suitable for the carbonator, while the model SUPERSTAR is normally combined with a premixer.
Of simple and modern design the STAR and SUPERSTAR stations are manufactured completely in stainless steel Aisi 304.
The numbers of the fittings depend on the CO2 demand of the bottling plant.
The CO2 stations are arranged to be fixed on a wall. The connections between the
CO2-cylinders and the station are made with Teflon pipes that give high working security.
With the STAR (models 4 and 6) and SUPERSTAR stations it is possible to replace empty CO2-cylinders without stopping filling. These stations are fitted with special non-return valves that prevent the gas escaping during the absence of the CO2-cylinders.
The STAR models are combined with the gas warmer COMPACT CALOR while the version SUPERSTAR is supplied with a larger
version named BIG CALOR. Both versions are supplied with pressure reducers, at different
sizes according to the quantity of gas to be used.
The thermal oil inside the gas warmer, heated by an electric resistance, is fully sealed and its tank is duly
insulated to avoid any possibility of scalding.
The gas stations STAR and SUPERSTAR are both available with different fittings according to the requirement of the carbonator or premixer to be connected.
Accessory: Afrometer for testing the quantity of CO2 inside filled and capped bottles. Suitable for all Types of bottles and caps. Complete with thermometer and graduated scale. Euro 450
Prices shown are exclusive of Vat.
Delivery is included in the price of the carbonators.