The sterilisation process can be divided into four steps: The pre-vacuum is the deaeration phase. This removes all residual air from the sterilisation chamber so that the steam can then completely surround the sterilised items. To achieve particularly thorough air removal, the VARIOKLAV BlueLine autoclave can be extended with a module for fractionated pre-vacuum. In the second step, the sterilisation chamber is filled with saturated and tensioned water vapour.
This steam consists of demineralised water and is generated by the heating elements integrated in the steam generator. This heating phase is also referred to as the equalisation time, as rising temperatures only spread to the sterilised items with a time delay. Our optional media temperature control module with temperature sensor simplifies the sterilisation of temperature-sensitive media and protects them from damage due to thermal stress.
Once the heating phase is complete, the actual sterilisation phase begins: The goods to be sterilised remain in the sterilisation chamber for a certain period of time so that the water vapour can act. The duration of the sterilisation phase depends on the germ contamination and the sterilisation temperature. In the final step, the steam is released from the sterilisation chamber and the sterilised items are allowed to cool.
It is particularly important to dry the sterilised material after sterilisation, as the moisture content of the sterilised material must not exceed certain tolerance limits in order to subsequently be able to release the material for storage or use. To this end, VARIOKLAV BlueLine sterilisers can be equipped with a vacuum drying module which generates a deep vacuum at the end of sterilisation and thus removes any residual moisture.