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Post by Danny D on Jun 4, 2004 16:37:21 GMT -8
Is it possible to use nitrox with a double hose regulator. If so what precautions would have to be fallowed . Anyone also interested in this idea
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Gary
Regular Diver
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Post by Gary on Jun 4, 2004 20:27:10 GMT -8
According to guidelines set by NOAA, OSHA, the US Navy, and other organizations, as long as the oxygen content of the final mixture is less than 40 percent, all scuba equipment is safe to use with nitrox, unless specifically restricted by manufacturer recommendations. As far as I know, I haven't heard of any restrictions on double-hose regulators, so using them should be OK.  |
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Deleted
Deleted Member
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Post by Deleted on Jun 5, 2004 8:53:45 GMT -8
According to guidelines set by NOAA, OSHA, the US Navy, and other organizations, as long as the oxygen content of the final mixture is less than 40 percent, ....... so using them should be OK. That is what I read too, but I will not bet on it, because some two hose is using gasket, and I think it is more easy to catch fire. I have come to know a case nitrox tank blow while filing 36 mix. worried me a bit, cause I never oxygen-clean my regualtor for nitrox use. I am too want to know more of if non-oxygen clean two hose can use nitrox. |
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Post by caveman on Jun 5, 2004 13:50:53 GMT -8
I don't think that up to 40 % Oxygen would be a real problem. The real problem is partial pressure blending without having an O2 clean tank. That could be a REAL BIG problem. Although I would probably hold my mix to 32% or 36 %. caveman
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Gary
Regular Diver
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Post by Gary on Jun 5, 2004 20:12:03 GMT -8
That is what I read too, but I will not bet on it, because some two hose is using gasket, and I think it is more easy to catch fire. I have come to know a case nitrox tank blow while filing 36 mix. worried me a bit, cause I never oxygen-clean my regualtor for nitrox use.
Fires and explosions occur when high pressure oxygen comes in contact with combustable material either in the tank, valve, or regulator which is why oxygen cleaning is required anytime the component comes in contact with greater than a 40 percent mix. The few times that I've read or heard of fires and explosions happen while mixing, and that's only when the partial pressure blending method is used. That's when a cylinder is filled with low pressure oxygen to a predetermined pressure and then topped off with air. This method of mixing is the simplest (as far as mixing equipment is concerned), the oldest, and the most dangerous methods of blending nitrox. But to cut my long tirade short, as long as the oxygen content of THE FINAL MIXTURE is 40 percent or less, all other equipment (besides the tank) should be okay to use with nitrox.
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Post by caveman on Jun 6, 2004 15:55:31 GMT -8
I have to dive my fish pond tomorrow to check out a problem. I will use my Royal Aqua Master with a tank I have with about 39 and 1/2 percent O2. Will let you know how it comes out.......If I never post again, don't try it.....LOL caveman
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Post by SeaRat on Jun 8, 2004 22:00:45 GMT -8
Anyone heard from caveman since his dive  ? John |
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Post by caveman on Jun 9, 2004 16:47:52 GMT -8
HI, I seem to be back. I did as I said and it was fun diving with my doublehose regs. I spent a total of 27 minutes which consisted of three dives. Two were on the Royal and one was on my Healthways Delux. It went off without a hitch, no explosions, no fires, nothing. zip...zilch...I was only down to 15 ft. (bottom) But I will go deeper next time.
BTW, the H valve worked real well and allowed me the option of using my dry suit. caveman
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Post by jamiep3 on Jun 11, 2004 9:45:25 GMT -8
Glad your back, we were afraid we'd have to change your name to FLASH.  |
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Post by caveman on Jun 11, 2004 17:38:15 GMT -8
Not so! 40% works just fine, although I usually use 30 to 36 %. caveman
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