MK II - Figure 4, Breathing Loop
High pressure gas (see figure 5) passes from the oxygen cylinder through the bypass valve into the breathing
bag, expanding same and assuming the environmental pressure.
The diver inhales the oxygen from the breathing bag throuhg the inhalation hose and mouthpiece and exhales
the respiration gases throuhg the exalation hose into soda lime canister (the non-return valve contained in
each hose, controls in proper manner the flow direction).
The soda lime absorbs and fixes the carbon dioxide contained in the respiration gases and purifies fully the non
metabolized oxygen.
Therefore the oxygen passes in the breathing bag and the cycle start again.
Actuating the by-pass lever is possible to restore the oxygen metabolized or to inflate quickly the breathing
bag.
An high pressure gauge screwed on valve assembly shows the pressure rate of the cylinder.
MK II Oxygen Rebreather User Manual - Revision 01/2018 - Copyrights : Dr Fabrizio Pirrello © 2001- 2018
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