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2. Rebreather diving - Wikipedia

   en.wikipedia.org/wiki/Rebreather_diving

   The rig comprised a rubber breathing/buoyancy bag containing a canister of barium hydroxide to absorb exhaled carbon dioxide and, in a pocket at the lower end of the bag, a steel pressure cylinder holding approximately 56 litres (2.0 cu ft) of oxygen at a pressure of 120 bars (1,700 psi) which was equipped with a control valve and connected to ...

3. Oxygen breathing apparatus - Wikipedia

   en.wikipedia.org/wiki/Oxygen_Breathing_Apparatus

   [1] The scrubber canister uses potassium superoxide as both a carbon dioxide absorbent and as an oxygen source. A sodium chlorate oxygen candle in the base of the unit generates oxygen on start-up as the canister has to reach a high internal temperature before it will start generating oxygen. The circulation of exhaled air containing carbon ...

4. Rebreather - Wikipedia

   en.wikipedia.org/wiki/Rebreather

   Gas supply valves, including a cylinder valve, to allow high pressure gas to flow from the cylinder. This may be manually operated by the user to directly supply make-up gas, or may provide the gas to a pressure regulator which reduces the pressure to a few bar above ambient pressure, and supplies this intermediate pressure gas to the gas feed ...

5. Diving rebreather - Wikipedia

   en.wikipedia.org/wiki/Diving_rebreather

   As there is a similar problem in venting excess gas, the simple and efficient solution is to make up oxygen as it is consumed and scrub out the carbon dioxide, with no change to the inert gas component, which simply recirculates. In effect, a simple closed circuit oxygen rebreather arrangement used as a life-support system. Since there is ...

6. Diving cylinder - Wikipedia

   en.wikipedia.org/wiki/Diving_cylinder

   Valve ejected due to mix up with valve threads 3/4"NPSM and 3/4"BSP(F) caused damage to a dive shop compressor room. [92] A valve ejected during filling due to incompatible thread killed the operator by impact to the chest. [38] A valve failed on a diver's emergency cylinder on a diving support vessel during preparation for a dive injuring five ...

7. Scuba gas management - Wikipedia

   en.wikipedia.org/wiki/Scuba_gas_management

   Rebreather diver with bailout and decompression cylinders. Scuba gas management is the aspect of scuba diving which includes the gas planning, blending, filling, analysing, marking, storage, and transportation of gas cylinders for a dive, the monitoring and switching of breathing gases during a dive, efficient and correct use of the gas, and the provision of emergency gas to another member of ...