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Flex CCR

Flex CCR is robust, compact exploration rebreather.
It is fully self-contained. Scrubber, electronics and counterlungs are all enclosed in virtually indestructible cylinder about the size of AL80. Clip it on, plug in the gases and dive. It can be easily donned or doffed underwater.
Flex CCR was designed from ground up as a sidemount CCR. It can also be used as a bail-out unit or as backmounted rebreather.

The unit was designed from the ground up as a sidemount CCR. It can also be used as a bail-out or back-mounted rebreather.
The Flex is a fully self-contained unit. Scrubber, electronics and counterlungs are all enclosed in a virtually indestructible cylinder about the size of AL80. Clip it on, plug in the diluent and oxygen gases and dive it. It can be easily donned or doffed underwater.

The Flex CCR is slightly wider and slightly taller than an aluminum 11L/AL80 cylinder. The unit is completely self-contained with the exception of oxygen and diluent gas supplies. It can be configured with a number of options including the Rev C or Rev D Hammerheadhandsets and DIVA (manual or eCCR), Shearwater Petrel, or cables suited to plugging in an external PO2 monitor like the Shearwater Petrel or Liquivision X1 or Divesoft Freedom. An after market HUD like the Shearwater or Narked at 90 can also readily be used.

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Gas path

Starting at the mouthpiece (either Golem Shrimp BOV with 90 degree adapters or dedicated Sidemount DSV) , exhaled gas leaves the mouthpiece and flows down into the top of the unit. Where the corrugated breathing hose enters the top plate of the unit through a bayonet connector, a Miflex hose enters the same place with a right angle fitting. This supplies oxygen from the manual add valve, which enters the loop just below the breathing hose bayonet. This means the O2 must travel through the rest of the circuit before being inhaled, giving plenty of time for adequate mixing before passing over the O2 cells and being breathed.

Gas then enters the exhale C/L immediately below the top plate. This C/L contains an OPV/dewatering valve, which can also be manually activated via a drawstring. After the exhale lung, gas passes through the rebreather head and down into the outside of the scrubber can, before entering the scrubber from outside in. Any water that has found its way down the exhale side will fall to the bottom of the can and could be expelled out the lower dump.

Gas enters the scrubber then passes up the inside of the scrubber to a chamber containing the 3 oxygen cells. The oxygen sensors are in removable cartridge/carrier that can be easily detached for storage in a dry place.

Past the cells, up into the inhale C/L, gas then leaves the unit via the inhale hose to the diver. Again, at the point where the inhale hose attaches to the top lid there is another Miflex hose which delivers diluent via the diluent manual add valve. At the head, two other Miflex hoses are seen entering via a radial slot. These hoses supply O2 to the “leaky”/CMF valve or solenoid and diluent to the diaphragm based ADV located on top of the lid. Two hoses come from the oxygen block (CMF or solenoid valve and manual add) and two from the diluent block (ADV and manual add). The gas supplies could be configured in a number of ways and supply to both drysuit and wing also needs to be considered.

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