The desired amount of gas (RVB-700 vacuum-gas) is then introduced into the bag through this same nozzle before welding.
Once the vacuum, gas, welding and cooling timers have been properly set and the rubber jaws have been closed, the operator triggers the entire cycle by simply pressing a button.
The RVB-700 vacuum-gas model also has the following options:
Sweep system: eliminates gas residues that may remain in the nozzle, it is indispensable when working with toxic gases.
Multicycle: The vacuum-gas process is repeated several times, obtaining a lower percentage of residual oxygen.
Double nozzle: Allows better and faster extraction of air from inside the bag.