Frank Roeder’s Dark Side Dolphin v. 4.5

Frank build his mCCR Dolphin and improved it during three years!

I have builded myDolphin mCCR in about 3 Years and now i think its finished! 
This Unit has the Name “Dark Side Dolphin” Release 4.5 
I dive this Unit in the German Lakes and in the Red Sea, This is my primary Unit. 
The Concept is a Kiss mCCR with Contant Mass Flow system (mCCR). 
The Operational dept is up to 70 Meters with a constant Flow and deeper with complete manual controlled addition (This makes a lot of workload and is only for divers with steel nerves).
But since i prefer to stay alive I dive this unit with Diluent Air up to maximum 40 Meters.

Configuration Oxygen side: 
Apeks DS/4 with fixed LP /Plug @ 12 bar and OPV.
Inflator Hose to the Hydrogom MCCR valve.
(JJ-CCR like Offboard Gas over Inflator connector possible)
 1x Inflator Hose to the BCD
1x Inflator Hose to the MAV Diluent (to Bypass Unit).
1x Hose to the BOV (with QC Quick Disconnect)

Frame/Shell/BSC/Harness: 
Original Shell 
Modified V4K with Stand and Handle (Guard) made from V2K 
Modified Apex WTX (cut out for better access to the Counterlungs and Bypass Unit) with DIR like Harness.

 Tanks:
right Side 1x Oxygen Tank 2l up to 4l (i prefer 3l Alloy Tanks) valve below
left Side 1x D

Diluent side:
Apeks FST with 
1x LP Hose to Mainfold.
1x seperatly Hose to the ADV/Bypass Unit (with Shut off or Blow Up)
1x Hose with Schwagelock Connection for Offboard Gas from the Bailout Tanks.
Additionally JJ-CCR like Offboard Gas over Inflator connector to the Diluent MAV possible)

Hose-routing the Mainfold:
Diluent Tank 2l up to 4l (i prefer 3l Alloy Tanks) valve below
Rear horizontal 1x 1,5l Tank for Drysuite

 Loop:
Original Counterlungs but the OPV is modified (harder), Golem Gear Shrimp BOV, tecme 3-Cell-Holder, tecme 90° angle and tecme Adapter for O2 injection via inflator hose adapter into exhale side of scrubber tank.

Oxygen monitoring:
1x external 3-Cell Holder with Shearwater Petrel2 EXT Computer 1x internal 1-Cell P-Port Holder with Tecme pPO2 Monitor

Please enjoy the pictures and feel free to send me questions!

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You can reach frank here: frankroeder(youknow)gmx.de
 
Frank, thanks for your contribution!

Page first published 08-03-2020

JW

Therebreathersite was founded by Jan Willem Bech in 1999. After a diving career of many years, he decided to start technical diving in 1999. He immediately noticed that at that time there was almost no website that contained the history of closed breathing systems. The start for the website led to a huge collection that offered about 1,300 pages of information until 2019. In 2019, a fresh start was made with the website now freely available online for everyone. Therebreathersite is a source of information for divers, researchers, technicians and students. I hope you enjoy browsing the content!