Gravity
The most basic sterilizing process. A drain port allows steam to displace air in the chamber via gravity (i.e., without mechanical aid).

Pre-Vacuum
A series of vacuum and pressure pulses are used to mechanically remove ambient air from the chamber and load.

Figure shows a single door typical set up.

How it Works
The steam supply is normally closed and exhaust is normally open. Engerizing the acuators allows the steam supply to open and close till desired temperature is achieved by the control box program. During the intial start all of the cool air is pushed down to the sump and pushed through the waste line, any condensation that is created also falls through the sump and strained if any debry is dropped (which must be cleaned out during each cycle). The Cycle is then started after the ramp up time is achieved. The steam supply acutator opens and closes with a 1°F – 2°F change and provides more steam to be inserted into the vessel to maintain the desired temperature. Once the cycle ends the exhaust is then de-energized and allows the steam and pressure to be exhausted, and the steam supply is de-energized to go back to nomarlly closed. This ends the cycle and the unit will then be able to be opened once there is “no pressure”. The Altam Quick Opening Door features a variety of safety precautions that will not allows the door to be open under pressure.