4.4. 1st PRESSURE RISE
In this phase the steam injection is activated in the chamber, bringing the pressure from the negative value reached
during vacuum pulse to 1.00 bar.
The pressure rise is divided into two parts; the first one from - 0.80 bar to 0.00 bar and the second one from 0.00 bar
to 1.00 bar.
In the first pressure rise phase, solenoid valve EV2 is activated to compensate for any air pockets that may form
inside the hydraulic circuit outside the chamber.
During the whole pressure rise phase, the chamber tube bundle heating element and the generator heating element
are activated to ensure that the correct temperature is kept inside the chamber and that steam is quickly generated.
Once the 1
st
PRESSURE RISE has been correctly carried out, the sterilization cycle performs two additional
VACUUM PHASES with a second PRESSURE RISE in between at 1.00 bar; during this two phases the same
negative pressure value required for the 1
st
VACUUM PHASE is achieved.
134° C B Cycle - 4’00’’
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