Long tube, standard
The long tube, standard valve is available in a 3 button version (pre-pressurizing, return gas path, snifting) or a 4 button version which has an additional vacuum channel for pre-evacuation operations. Product flows down the center of the tube and enters the bottle 1 - 2 cm above the bottle bottom.
Oxygen protection of the product during filling is accomplished by the inherent design of the long tubes which can be augmented by the use of pre-evacuation. A long tube filler with single pre-evacuation has approximately the same oxygen pick up across the filling operation as does a short tube, double pre-evacuation filler.
Long tube, flushing
The long tube, flushing valve has the capability of injecting CO2 into the bottle through the same tube as liquid flows before sealing against the filling valve. The bottle raising mechanism is flattened just before sealing to insure sufficient time for efficient exchange of air in the bottle for CO2. Product flows down the center of the tube and enters the bottle 1 - 2 cm above the bottle bottom.
Oxygen protection of the product during filling is accomplished by the inherent design of the long tubes plus bottle flushing before sealing. This system has approximately the same oxygen pick up across the filling operation as does a short tube, double pre-evacuation filler.
Beer machines are normally outfitted with crown cappers. Capping dies can be sized for pry top or twist top bottles.
The machines can be outfitted with screw cappers for closing PET bottles or other plastic bottles.
Machine sizes range from a 6/2 - filler/capper to a 40/8 filler/capper.
Speed range for long tube fillers is approximately 30 bpm to 225 bpm based upon a 12 oz. (354 ml) bottle.
Short tube fillers operate approximately 8% slower.
Single pre-evacuation will reduce a given machine's speed by approximately 8%.
Double pre-evacuation will reduce a given machine's speed by approximately 13%