8
b. Gas flushing (option)
There is an atmospheric pressure of 1 kg/cm
2
(14 PSI) upon products when fully
evacuated. Products which can be damaged by high pressure must be packaged
with a partial vacuum, or the pressure must be counterbalance by inflating the bag
with neutral gas.
For gas flushing, the bags are placed on the sealing bars, the open ends placed
over the gas nozzles mounted alongside the sealing bar. After evacuation, the
vacuum valve closes and the gas valve opens. Gas quantity (%) can be set in the
program.
The necessary gas tank and pressure regulator mounted on tank is not supplied,
The pressure of the gas regulator should be set at approximately 1/3 kg/cm
2
( 5
PSI ). Each machine has an adaptor for gas connection when gas flush option is
ordered.
c. Electrical bag cut (option)
This option is used to obtain a package that the excess bagtail is cut off close to
the seal.
d. Pressure regulator (option)
This option is used to obtain more sealing pressure between the sealing bar jaw.
Suggested option for low vacuum level packaging or high level gas flushing. Also
recommended for hard to seal laminated bags. Each machine has an adaptor for
compressed air connection when pressure regulator option is ordered.
Recommend pressure regulator adjustment is 1 kg/cm
2
(14 PSI), maximum setting
1.3 kg/cm
2
(20 PSI),