Octopus on a Drager First Stage

pete611 · 31st December 2007, 19:15

Has anybady tryed to adapte a octopus on a Drager Dolphin First Stage.so you can used a 50cf. tank to dive and deco.if you have any pic or photo please...or tell me how...

fragstone · 31st December 2007, 23:18

Hi,

in Germany an will look on tecme website. Tauchen - Cave, Nitrox, Rebreather Ausbildung, Tec Ausrüstung, Reisen

bye
Thomas

**Dave1w** · 1st January 2008, 03:43

Hi Pete,
There is an issue because the Drager 1st Stage is fixed IP and high at about 16 bar I think. What a few people have done is use a H-Valve, so that they can run a seperate 1st stage from the same tank for bailout etc. And if need be shut down the dolphin dosage.

Hope this helps

Dave

Humuhumu · 5th January 2008, 20:19

Hi,

you cannot use the first stage of the Dolphin, it is fixed MP (between 15 to 17 bars)... and you would need adapters as standard hoses don' t fit...Put another valve on the tank and mount a second bail out first stage on it. An other option is to put a separate tank on the side of the Dolphin (I used to do it this way), but this is only for no decompression dives as it is a 2 liter tank...

You can go to Tauchen - Cave, Nitrox, Rebreather Ausbildung, Tec Ausrüstung, Reisen or on the V4TEC side (for the rail systems you need), personaly I have taken a Hydrogom shell, so I can do what I want (Martin from Tecme can help you).

Cheers

Bertrand

**Freef** · 5th January 2008, 21:41

Here's my 10L with H valve that I use with my Dolphin. The lower picture is how I mount it, with the Drager valve upmost.

Smudgegs · 5th January 2008, 22:05

How do you find the balance with the 10 David? Doesn't it make you a bit tail heavy in the water?

Divein · 6th January 2008, 09:26

Sorry to hijack thread but if interested PM me 1 x Faber 10L with 'H' valve (otherwise known as a TWIN OUTLET MODULAR VALVE - DIN convertible. Tested until June 2008, O2 test ran out at end of September. (ideal for use with a Dolphin SCR - recommended by BSAC) £60 ono - delivery at cost.

**Freef** · 6th January 2008, 11:30

Quote: (Originally Posted by Smudgegs)

How do you find the balance with the 10 David? Doesn't it make you a bit tail heavy in the water?

Not really, with the increase in weight there is a corresponding increase in volume. I'll look at the weights and volumes on the tanks when i get a chance.

31st December 2007, 19:15	#1 (permalink)
pete611 RBD one dive at a time... Current Rebreather/s: Dolphin Other Rebreather/s: Dolphin Join Date: Feb 2006 Location: Puerto Rico Posts: 223	Octopus on a Drager First Stage Has anybady tryed to adapte a octopus on a Drager Dolphin First Stage.so you can used a 50cf. tank to dive and deco.if you have any pic or photo please...or tell me how... __________________ Warm Water Only For Me Please.. ><))))°> ><))))°> WARNING: the rebreather is not broken is a Dolphin!!!
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31st December 2007, 23:18	#2 (permalink)
fragstone New Member Current Rebreather/s: Dolphin Other Rebreather/s: Dolphin Join Date: Sep 2007 Location: Germany Posts: 6	Re: Octopus on a Drager First Stage Hi, in Germany an will look on tecme website. Tauchen - Cave, Nitrox, Rebreather Ausbildung, Tec Ausrüstung, Reisen bye Thomas
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1st January 2008, 03:43	#3 (permalink)
Dave1w Born Again Diver! Current Rebreather/s: Sport Kiss Dolphin Ray Home Build Other Rebreather/s: Classic Kiss Dolphin Ray Home Build Join Date: Jan 2005 Location: Singapore / UK Posts: 347	Re: Octopus on a Drager First Stage Hi Pete, There is an issue because the Drager 1st Stage is fixed IP and high at about 16 bar I think. What a few people have done is use a H-Valve, so that they can run a seperate 1st stage from the same tank for bailout etc. And if need be shut down the dolphin dosage. Hope this helps Dave __________________ This message may contain spelling mistakes as it was generated by an idiot.
(Online)

5th January 2008, 20:19	#4 (permalink)
Humuhumu Yellow Box Of Delight Current Rebreather/s: Inspiration Vision Other Rebreather/s: Not Bought Yet Join Date: Jan 2007 Location: Blue Planet Posts: 114	Re: Octopus on a Drager First Stage Hi, you cannot use the first stage of the Dolphin, it is fixed MP (between 15 to 17 bars)... and you would need adapters as standard hoses don' t fit...Put another valve on the tank and mount a second bail out first stage on it. An other option is to put a separate tank on the side of the Dolphin (I used to do it this way), but this is only for no decompression dives as it is a 2 liter tank... You can go to Tauchen - Cave, Nitrox, Rebreather Ausbildung, Tec Ausrüstung, Reisen or on the V4TEC side (for the rail systems you need), personaly I have taken a Hydrogom shell, so I can do what I want (Martin from Tecme can help you). Cheers Bertrand __________________ Humuhumu Nukunuku Apua'a
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5th January 2008, 22:05	#6 (permalink)
Smudgegs Divetart Current Rebreather/s: Classic Kiss Dolphin Other Rebreather/s: Dolphin Join Date: Mar 2007 Location: Fife, Scotland Posts: 125	Re: Octopus on a Drager First Stage How do you find the balance with the 10 David? Doesn't it make you a bit tail heavy in the water?
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6th January 2008, 09:26	#7 (permalink)
Divein Custom Title Allowed! Current Rebreather/s: Dolphin Home Build Other Rebreather/s: Dolphin Home Build Join Date: Jun 2006 Location: Yorkshire Posts: 104	Re: Octopus on a Drager First Stage Sorry to hijack thread but if interested PM me 1 x Faber 10L with 'H' valve (otherwise known as a TWIN OUTLET MODULAR VALVE - DIN convertible. Tested until June 2008, O2 test ran out at end of September. (ideal for use with a Dolphin SCR - recommended by BSAC) £60 ono - delivery at cost.
(Offline)

6th January 2008, 11:30	#8 (permalink)
Freef Custom Title Disallowed! Current Rebreather/s: Dolphin Other Rebreather/s: Dolphin Join Date: Jan 2006 Location: Land of the Freef, UK. Posts: 1,356	Re: Octopus on a Drager First Stage Quote: (Originally Posted by Smudgegs) How do you find the balance with the 10 David? Doesn't it make you a bit tail heavy in the water? Not really, with the increase in weight there is a corresponding increase in volume. I'll look at the weights and volumes on the tanks when i get a chance. __________________ David. Currently owner of two differently sized ankles.
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