mCCR Plumbing plan

undrh2o · 14th December 2007, 21:06

It looks like you are running the hoses for the LPI and ADV out to the MAV and back.

I'd say you could drop a bunch of fittings from your list if you use the DIL reg to run your LPI and ADV hoses.

I don't have a dolphin but if the ADV fitting is an odd draeger one you could splice a hose with a male to male fitting and get the lp fitting.

**Scott** · 14th December 2007, 21:09

I'm *pretty* sure that the pipethread fittings are more leak proof and bomb proof then oring'd fittings at the 1st stage.... I'm sure Dave will chime in if I'm wrong =)

I'm actually considering a change though... getting a clippard valve and taking measurements off it, and using that to make a 316 ss valve / manifold assembly... In theory it shouldn't be too too hard.....

-Scott

undrh2o · 15th December 2007, 00:02

I wouldn't bet there is a lot of difference in the fittings the 3/8UNF o-ring is pretty proven IMHO doesn't matter really.

My concern is where are you going to put the MAV for the DIL? If its in your hand or on your harness then you are running one hose from the reg to it and then one each back to the counterlung, LPI and ADV?(1 out 3 back) If that's true then that's a bunch of hoses versus one out one back for the MAV and keeping the rest inside (or close) to the shell. Just trying to understand the routing - more of a streamlining concern then a fitting issue.

**Scott** · 15th December 2007, 00:29

Well... my intention is for the hoses to be aligned to my harness's waist belt. I am intending to have my diluent in a sidemount tank.. and possibly my O2..

It would be one nasty mess of hoses if I ran 3 different lp hoses from a sidemount tank over to the rebreather.. .... Would be next to impossible for me to ditch the side tank to get on a boat, or if i had an emergency on the surface.....

With the single QD, i pop it loose, unclip or cut the one cave line binding on the tail end of the cylinder, and let it go .. the SPG's Oring binding will snap on its own..

-Scott

undrh2o · 17th December 2007, 01:48

Quote: (Originally Posted by Scott)

Well... my intention is for the hoses to be aligned to my harness's waist belt. I am intending to have my diluent in a sidemount tank.. and possibly my O2..

It would be one nasty mess of hoses if I ran 3 different lp hoses from a sidemount tank over to the rebreather.. .... Would be next to impossible for me to ditch the side tank to get on a boat, or if i had an emergency on the surface.....

With the single QD, i pop it loose, unclip or cut the one cave line binding on the tail end of the cylinder, and let it go .. the SPG's Oring binding will snap on its own..

-Scott

I that case yeah - I can see a 1/8NPT manifold on your left chest d ring and a QD to a single whip off the sling tank should keep everything organized. If it hasn't been mentioned already make sure the fittings for breathing gas are high flow enough for SCR operation.

**Scott** · 19th December 2007, 05:21

So... anyone have any idea where I can find the valves in 316 SS? =)

14th December 2007, 21:06	#11 (permalink)
undrh2o Chris Miller Current Rebreather/s: Other CCR Dolphin Home Build Other Rebreather/s: Inspiration Classic Other CCR Dolphin Home Build Join Date: Apr 2006 Location: Ottawa, Canada Posts: 206	Re: mCCR Plumbing plan It looks like you are running the hoses for the LPI and ADV out to the MAV and back. I'd say you could drop a bunch of fittings from your list if you use the DIL reg to run your LPI and ADV hoses. I don't have a dolphin but if the ADV fitting is an odd draeger one you could splice a hose with a male to male fitting and get the lp fitting.
(Offline)

14th December 2007, 21:09	#12 (permalink)
Scott Supporting Member Current Rebreather/s: Other CCR Other Rebreather/s: Megalodon Other CCR Join Date: Mar 2006 Location: Mendota, Virginia Posts: 181	Re: mCCR Plumbing plan I'm pretty sure that the pipethread fittings are more leak proof and bomb proof then oring'd fittings at the 1st stage.... I'm sure Dave will chime in if I'm wrong =) I'm actually considering a change though... getting a clippard valve and taking measurements off it, and using that to make a 316 ss valve / manifold assembly... In theory it shouldn't be too too hard..... -Scott
(Offline)

15th December 2007, 00:02	#13 (permalink)
undrh2o Chris Miller Current Rebreather/s: Other CCR Dolphin Home Build Other Rebreather/s: Inspiration Classic Other CCR Dolphin Home Build Join Date: Apr 2006 Location: Ottawa, Canada Posts: 206	Re: mCCR Plumbing plan I wouldn't bet there is a lot of difference in the fittings the 3/8UNF o-ring is pretty proven IMHO doesn't matter really. My concern is where are you going to put the MAV for the DIL? If its in your hand or on your harness then you are running one hose from the reg to it and then one each back to the counterlung, LPI and ADV?(1 out 3 back) If that's true then that's a bunch of hoses versus one out one back for the MAV and keeping the rest inside (or close) to the shell. Just trying to understand the routing - more of a streamlining concern then a fitting issue.
(Offline)

15th December 2007, 00:29	#14 (permalink)
Scott Supporting Member Current Rebreather/s: Other CCR Other Rebreather/s: Megalodon Other CCR Join Date: Mar 2006 Location: Mendota, Virginia Posts: 181	Re: mCCR Plumbing plan Well... my intention is for the hoses to be aligned to my harness's waist belt. I am intending to have my diluent in a sidemount tank.. and possibly my O2.. It would be one nasty mess of hoses if I ran 3 different lp hoses from a sidemount tank over to the rebreather.. .... Would be next to impossible for me to ditch the side tank to get on a boat, or if i had an emergency on the surface..... With the single QD, i pop it loose, unclip or cut the one cave line binding on the tail end of the cylinder, and let it go .. the SPG's Oring binding will snap on its own.. -Scott
(Offline)

17th December 2007, 01:48	#15 (permalink)
undrh2o Chris Miller Current Rebreather/s: Other CCR Dolphin Home Build Other Rebreather/s: Inspiration Classic Other CCR Dolphin Home Build Join Date: Apr 2006 Location: Ottawa, Canada Posts: 206	Re: mCCR Plumbing plan Quote: (Originally Posted by Scott) Well... my intention is for the hoses to be aligned to my harness's waist belt. I am intending to have my diluent in a sidemount tank.. and possibly my O2.. It would be one nasty mess of hoses if I ran 3 different lp hoses from a sidemount tank over to the rebreather.. .... Would be next to impossible for me to ditch the side tank to get on a boat, or if i had an emergency on the surface..... With the single QD, i pop it loose, unclip or cut the one cave line binding on the tail end of the cylinder, and let it go .. the SPG's Oring binding will snap on its own.. -Scott I that case yeah - I can see a 1/8NPT manifold on your left chest d ring and a QD to a single whip off the sling tank should keep everything organized. If it hasn't been mentioned already make sure the fittings for breathing gas are high flow enough for SCR operation.
(Offline)

19th December 2007, 05:21	#16 (permalink)
Scott Supporting Member Current Rebreather/s: Other CCR Other Rebreather/s: Megalodon Other CCR Join Date: Mar 2006 Location: Mendota, Virginia Posts: 181	Re: mCCR Plumbing plan So... anyone have any idea where I can find the valves in 316 SS? =)
(Offline)

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode