Titanium or Not ??

[UaVaj]

Can someone put the titanium is flamable in " flamable titanium for dummies" version.

How does a metal become flamable again? As expensive as this upgrade is. To add fire hazard is definitely on the AVOID list.

 

[halocline]

If you're going for a SP reg, see if you can't get one of the new G250V (vintage) 2nd stages. You might have to special order it from Europe, and to be honest I'm not sure if it's even out in Europe yet. I'm pretty sure as soon as it's available it will be the SP 2nd stage of choice for many experienced divers.

As long as money's not a problem, you could also advertise to find an older G250 (with the metal air barrel) in pristine condition or a D400 (also in pristine shape) and expect to pay a premium for either, but you would also be getting a 2nd stage considered by many to be better than any of the current new SP 2nd stages.

As far as 1st stage, it's probably a good idea to follow DA aquamaster's advice, as he's a real expert with SP regs. Newest and most expensive does not always equal "best" especially with scuba gear. Jeez, I've only been diving for a few years and I already sound like an old crusty.

 

[Sadamune]

In 10 years, new technology will arrive. And your titanium reg, though shiny and new from lack of corrosion, is not worth the extra money you paid.

fisherdvm, my titanium regulator is worth every bloody cent I paid for it. Perhaps you assume I paid full retail price and thus spent enough money to buy three conventional brass regulators. The truth is I did not pay anywhere near full retail price, but even if I had, the advantageous qualities of titanium combined with the many superior features of Atomic's regulators still would have made it an excellent investment.

Sadamune

 

[Sadamune]

Can someone put the titanium is flamable in " flamable titanium for dummies" version.

How does a metal become flamable again? As expensive as this upgrade is. To add fire hazard is definitely on the AVOID list.

UaVaj, all metals can burn if given the right conditions. Titanium is a metal, and therefore, titanium can burn. What is important are the conditions necessary in order for titanium to burn. Simply put, titanium can burn when exposed to a preexisting fire fed by very high concentration O2 gas. Pure O2 and high pressures will not necessarily cause titanium to burn, but if the O2 causes something else to burn (like oil or dust), then that fire could spread to the titanium. So make sure your titanium regulator is O2 clean when you use nitrox. That way you eliminate the possibility of contaminants catching on fire.

Sadamune

 

[Bob Vincent]

The post on the Posiedon reg. they are suppose to have a .05 joule WOB ( work of breathing ) at 495 ft. sea water. Pretty impressive.

The MK25/S600 is a grate reg and will do what you looking far. The Ti will be great if you leave it underwater for a few centuries. Oh and not planning on using enriched air over the norm.

They say a human can barely tell a .5 difference in breathing rates when we are talking about regs that rate from 1.0 to .05 joule WOB. at a dept of 132 ft.

What I'd like to find out is the difference between a brass 1st stage and a forged brass 1st stage? Anyone know?

 

[Greg Barlow]

The post on the Posiedon reg. they are suppose to have a .05 joule WOB ( work of breathing ) at 495 ft. sea water. Pretty impressive.

That is not physically possible considering the density of an appropriate helium based gas mix. Furthermore, you would expend more energy than that in exhaling the gas through the exhaust valve. If my memory serves me correctly, the Xsteam has a WOB of around 1.3j/l at a depth of 198' and 62.5 liters.


They say a human can barely tell a .5 difference in breathing rates when we are talking about regs that rate from 1.0 to .05 joule WOB. at a dept of 132 ft.

US Navy tests, along with others do show this to be the routine case. Your figures, I believe, should read 1.0 to 0.5j/l, and not 0.05j/l. Any reg that can achieve a WOB of 1.4j/l or less at 198' earns a US Navy rating of "Class A". A reg of that level will meet anyone's needs.

Greg Barlow