ADV vavle with p-connector

bluediver · 27th March 2007, 15:22

I am modifying my FGT to CCR. Does any one have a goog idea for a ADV vavle with a p- connector?

jmhardingjr · 27th March 2007, 15:54

Either a Drager Ray or Drager Dolphin dosing head. Plumb your diluent to the bypass, snap it into a p-port in you counterlung, and the unit works as an ADV. If you use the Dolphin head you need to either change the spring for a softer one or run your diluent first stage at a higher intermediate pressure. In the original application, the Dolphin head runs at around 16.5 BAR.

The Ray dosage head, on the other hand, runs at the normal IP range of standard first stages. For the Ray you need to block a tiny orifice in the mechanism, but it's quick and easy with a little epoxy. The reason for this is that the Ray dosing head has a combined bypass and dosing orifice. The Dolphin has separate orifices. Lots of people have discussed doing this to the Ray dosing head here on this forum so a quick search may turn up some more information for you.

Hope this helps,

Jay

bluediver · 3rd April 2007, 15:37

Tanks for the help. My friend also rebuilding his FGT bought a secound hand Ray dosage. So I will probarly follow that line.

Quote: (Originally Posted by jmhardingjr)

Either a Drager Ray or Drager Dolphin dosing head. Plumb your diluent to the bypass, snap it into a p-port in you counterlung, and the unit works as an ADV. If you use the Dolphin head you need to either change the spring for a softer one or run your diluent first stage at a higher intermediate pressure. In the original application, the Dolphin head runs at around 16.5 BAR.

The Ray dosage head, on the other hand, runs at the normal IP range of standard first stages. For the Ray you need to block a tiny orifice in the mechanism, but it's quick and easy with a little epoxy. The reason for this is that the Ray dosing head has a combined bypass and dosing orifice. The Dolphin has separate orifices. Lots of people have discussed doing this to the Ray dosing head here on this forum so a quick search may turn up some more information for you.

Hope this helps,

Jay

Woz · 3rd April 2007, 15:58

I've made one that works nicely out of an AP Valves AutoAir. Needs some playing with at the moment (a stiffer spring fitting) but it works simply.

Video here.

It works in exactly the same way as the rEvo ADV does.

jaap · 3rd April 2007, 16:41

Quote: (Originally Posted by bluediver)

I am modifying my FGT to CCR. Does any one have a goog idea for a ADV vavle with a p- connector?

Hi

Is it you Steven?

If yes, you know I have a spare Ray-50% doseage you can borrow for a while. The best is not not to epoxy but to buy the replacement leverage mechanism for the Dolphin. It has no flow. I did that for my sling-Rebreather ADV. It can be had from watersafety of tecme for about 35€. Or to machine one if you can.

I just did som testing modifying a small octo, the one in this link:
Oceanic Slimline Octopus, Yellow from LeisurePro.com

Have only tested it once in a small O2-Rebreather but it turns out smaller than a Ray-dosage. Putting a disc and spring behind the exhause valve can make it act as an OPV also.

I think it can be nicely fitted to the FGT by replacing the OPV. This way one could get an ADV that could possibly even be reached behind the head for manual operation and acting as an OPV at the same time.

Question is if it too much of a tinkering solution and how well this octo works in cold water...

Tautaz · 3rd April 2007, 17:17

Woz,

can you show how is it inside the breath bag?
I've got a spare air inflator broken(Zeagle air plus) that I'd like to use as an adv for my homemade KISS.

Thanks.

David

Marc T · 3rd April 2007, 17:24

Quote: (Originally Posted by jaap)

Hi

Is it you Steven?

If yes, you know I have a spare Ray-50% doseage you can borrow for a while. The best is not not to epoxy but to buy the replacement leverage mechanism for the Dolphin. It has no flow. I did that for my sling-Rebreather ADV. It can be had from watersafety of tecme for about 35€. Or to machine one if you can.

I just did som testing modifying a small octo, the one in this link:
Oceanic Slimline Octopus, Yellow from LeisurePro.com

Have only tested it once in a small O2-Rebreather but it turns out smaller than a Ray-dosage. Putting a disc and spring behind the exhause valve can make it act as an OPV also.

I think it can be nicely fitted to the FGT by replacing the OPV. This way one could get an ADV that could possibly even be reached behind the head for manual operation and acting as an OPV at the same time.

Question is if it too much of a tinkering solution and how well this octo works in cold water...

Done exactly that with an octopus from aqualung, I used a sawed blind P-Plug fixed with epoxy on the modified mouthpiece ( in fact the place where the mouthpiece is attached ) of the reg.
You need a heater to modifie the reg.
That work perfectly as an ADV-OPV

wizbang · 4th April 2007, 02:21

Sorry, I can't find it now, but i have seen an ADV made inside a P-Port. I thought it was from tecme.de but I have just scanned the site without success.

I use the Dolphin dosage head as my ADV and works great.

Good luck.

montyg · 4th April 2007, 07:42

Quote: (Originally Posted by jmhardingjr)

For the Ray you need to block a tiny orifice in the mechanism, but it's quick and easy with a little epoxy.

I'm not sure if I would trust epoxy.

I had the orifice in my Ray mechanism closed off with silver solder, and it works a treat!

rgds
monty

Woz · 4th April 2007, 11:46

Quote: (Originally Posted by Tautaz)

Woz,

can you show how is it inside the breath bag?
I've got a spare air inflator broken(Zeagle air plus) that I'd like to use as an adv for my homemade KISS.

Thanks.

David

If you have a look at the rEvo all that is is an R190 lever with some rubber round the end that the counterlung presses on when it deflates. That's exactly how mine works. Counterlung deflates, presses on the lever, opens the ADV.

27th March 2007, 15:22	#1 (permalink)
bluediver New Member Current Rebreather/s: Other CCR Other SCR Other Rebreather/s: Not Bought Yet Other CCR Other SCR Join Date: Dec 2006 Location: Sweden Posts: 2	ADV vavle with p-connector I am modifying my FGT to CCR. Does any one have a goog idea for a ADV vavle with a p- connector?
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27th March 2007, 15:54	#2 (permalink)
jmhardingjr Son of a Sailor Current Rebreather/s: Other CCR Home Build Other Rebreather/s: Other CCR Home Build Join Date: Sep 2005 Location: . . . this one particular harbor . . . Posts: 200	Re: ADV vavle with p-connector Either a Drager Ray or Drager Dolphin dosing head. Plumb your diluent to the bypass, snap it into a p-port in you counterlung, and the unit works as an ADV. If you use the Dolphin head you need to either change the spring for a softer one or run your diluent first stage at a higher intermediate pressure. In the original application, the Dolphin head runs at around 16.5 BAR. The Ray dosage head, on the other hand, runs at the normal IP range of standard first stages. For the Ray you need to block a tiny orifice in the mechanism, but it's quick and easy with a little epoxy. The reason for this is that the Ray dosing head has a combined bypass and dosing orifice. The Dolphin has separate orifices. Lots of people have discussed doing this to the Ray dosing head here on this forum so a quick search may turn up some more information for you. Hope this helps, Jay __________________ ". . . the sea's in my veins, my tradition remains, I'm just glad I don't live in a trailer . . ."
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3rd April 2007, 15:37	#3 (permalink)
bluediver New Member Current Rebreather/s: Other CCR Other SCR Other Rebreather/s: Not Bought Yet Other CCR Other SCR Join Date: Dec 2006 Location: Sweden Posts: 2	Re: ADV vavle with p-connector Tanks for the help. My friend also rebuilding his FGT bought a secound hand Ray dosage. So I will probarly follow that line. Quote: (Originally Posted by jmhardingjr) Either a Drager Ray or Drager Dolphin dosing head. Plumb your diluent to the bypass, snap it into a p-port in you counterlung, and the unit works as an ADV. If you use the Dolphin head you need to either change the spring for a softer one or run your diluent first stage at a higher intermediate pressure. In the original application, the Dolphin head runs at around 16.5 BAR. The Ray dosage head, on the other hand, runs at the normal IP range of standard first stages. For the Ray you need to block a tiny orifice in the mechanism, but it's quick and easy with a little epoxy. The reason for this is that the Ray dosing head has a combined bypass and dosing orifice. The Dolphin has separate orifices. Lots of people have discussed doing this to the Ray dosing head here on this forum so a quick search may turn up some more information for you. Hope this helps, Jay
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3rd April 2007, 15:58	#4 (permalink)
Woz Custom Title Allowed! Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: Jun 2005 Location: Nottingham Posts: 186	Re: ADV vavle with p-connector I've made one that works nicely out of an AP Valves AutoAir. Needs some playing with at the moment (a stiffer spring fitting) but it works simply. Video here. It works in exactly the same way as the rEvo ADV does. __________________ Still punting shiny diving tatt to gullible divers www.kitfondle.co.uk Last edited by Woz : 3rd April 2007 at 16:01.
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3rd April 2007, 16:41	#5 (permalink)
jaap Normal people worry me Current Rebreather/s: Classic Kiss Other CCR RB80 / Clone Ray Other SCR Home Build Other Rebreather/s: Other CCR RB80 / Clone Ray Other SCR Home Build Join Date: Jun 2005 Location: Stockholm Sweden Posts: 468	Re: ADV vavle with p-connector Quote: (Originally Posted by bluediver) I am modifying my FGT to CCR. Does any one have a goog idea for a ADV vavle with a p- connector? Hi Is it you Steven? If yes, you know I have a spare Ray-50% doseage you can borrow for a while. The best is not not to epoxy but to buy the replacement leverage mechanism for the Dolphin. It has no flow. I did that for my sling-Rebreather ADV. It can be had from watersafety of tecme for about 35€. Or to machine one if you can. I just did som testing modifying a small octo, the one in this link: Oceanic Slimline Octopus, Yellow from LeisurePro.com Have only tested it once in a small O2-Rebreather but it turns out smaller than a Ray-dosage. Putting a disc and spring behind the exhause valve can make it act as an OPV also. I think it can be nicely fitted to the FGT by replacing the OPV. This way one could get an ADV that could possibly even be reached behind the head for manual operation and acting as an OPV at the same time. Question is if it too much of a tinkering solution and how well this octo works in cold water... __________________ My initials: JAAP
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3rd April 2007, 17:17	#6 (permalink)
Tautaz New Member Current Rebreather/s: Home Build Other Rebreather/s: Not Bought Yet Home Build Join Date: Jan 2007 Location: Colomiers France Posts: 79	Re: ADV vavle with p-connector Woz, can you show how is it inside the breath bag? I've got a spare air inflator broken(Zeagle air plus) that I'd like to use as an adv for my homemade KISS. Thanks. David
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3rd April 2007, 17:24	#7 (permalink)
Marc T hell is in the details Current Rebreather/s: RB80 / Clone Home Build Other Rebreather/s: Not Bought Yet RB80 / Clone Home Build Join Date: Sep 2005 Location: FRANCE Carcassonne Posts: 495	Re: ADV vavle with p-connector Quote: (Originally Posted by jaap) Hi Is it you Steven? If yes, you know I have a spare Ray-50% doseage you can borrow for a while. The best is not not to epoxy but to buy the replacement leverage mechanism for the Dolphin. It has no flow. I did that for my sling-Rebreather ADV. It can be had from watersafety of tecme for about 35€. Or to machine one if you can. I just did som testing modifying a small octo, the one in this link: Oceanic Slimline Octopus, Yellow from LeisurePro.com Have only tested it once in a small O2-Rebreather but it turns out smaller than a Ray-dosage. Putting a disc and spring behind the exhause valve can make it act as an OPV also. I think it can be nicely fitted to the FGT by replacing the OPV. This way one could get an ADV that could possibly even be reached behind the head for manual operation and acting as an OPV at the same time. Question is if it too much of a tinkering solution and how well this octo works in cold water... Done exactly that with an octopus from aqualung, I used a sawed blind P-Plug fixed with epoxy on the modified mouthpiece ( in fact the place where the mouthpiece is attached ) of the reg. You need a heater to modifie the reg. That work perfectly as an ADV-OPV
(Offline)

4th April 2007, 02:21	#8 (permalink)
wizbang WEB MERMEN Current Rebreather/s: Inspiration Classic Dolphin Home Build Other Rebreather/s: Not Bought Yet Inspiration Vision Evolution Prism Topaz Sport Kiss Classic Kiss Dolphin Home Build Join Date: Feb 2005 Location: Perth Australia Posts: 386	Re: ADV vavle with p-connector Sorry, I can't find it now, but i have seen an ADV made inside a P-Port. I thought it was from tecme.de but I have just scanned the site without success. I use the Dolphin dosage head as my ADV and works great. Good luck.
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4th April 2007, 07:42	#9 (permalink)
montyg Monty Guest Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: Feb 2007 Location: Cape Town, South Africa Posts: 238	Re: ADV vavle with p-connector Quote: (Originally Posted by jmhardingjr) For the Ray you need to block a tiny orifice in the mechanism, but it's quick and easy with a little epoxy. I'm not sure if I would trust epoxy. I had the orifice in my Ray mechanism closed off with silver solder, and it works a treat! rgds monty
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4th April 2007, 11:46	#10 (permalink)
Woz Custom Title Allowed! Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: Jun 2005 Location: Nottingham Posts: 186	Re: ADV vavle with p-connector Quote: (Originally Posted by Tautaz) Woz, can you show how is it inside the breath bag? I've got a spare air inflator broken(Zeagle air plus) that I'd like to use as an adv for my homemade KISS. Thanks. David If you have a look at the rEvo all that is is an R190 lever with some rubber round the end that the counterlung presses on when it deflates. That's exactly how mine works. Counterlung deflates, presses on the lever, opens the ADV. __________________ Still punting shiny diving tatt to gullible divers www.kitfondle.co.uk
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