What temp is OC gas?

divetheworld · 22nd December 2005, 22:25

Quote: (Originally Posted by Genesis)

Its not just the cold - its also the dry.

One thing that I've always hated about OC diving is the cottonmouth. I simply CANNOT use a full-plastic second stage for more than 20 minutes or so - if I try the discomfort becomes extreme. You can "remove, rinse, repeat" but that's not a great solution in water less-than-pristine. A second with a metal air-tube is more tolerable because it condenses some of your expired humidity and then re-evaporates it - a bit better.

I'm very much looking forward to warm, moist gas......

Oh man, you are sooooo right. Thanks be ti him for giving us CCR.

Wetfun · 24th December 2005, 00:01

OC gas chills from the tank to the hose due to adiabatic chilling, the temp drop is between 70F (3000psi to 140psi) to 100F (4500psi to 140psi) - so that OC stage tank hanging in 40F water could give a first few breaths at -30F to -60F

It takes 10 feet of 1/2 inch SS tube to bring the temp up to near ambient water temp at 90RMV

A Rebreather cools the gas post scrubber or post diver to near ambient water temp, cooling occurs in hoses and counterlungs

22nd December 2005, 22:25	#11 (permalink)
divetheworld Dive porn pimp Current Rebreather/s: Inspiration Classic Other CCR Other Rebreather/s: Not Bought Yet Inspiration Classic Inspiration Vision Classic Kiss Other CCR Join Date: Mar 2005 Location: Leeds, England Posts: 1,586	Re: What temp is OC gas? Quote: (Originally Posted by Genesis) Its not just the cold - its also the dry. One thing that I've always hated about OC diving is the cottonmouth. I simply CANNOT use a full-plastic second stage for more than 20 minutes or so - if I try the discomfort becomes extreme. You can "remove, rinse, repeat" but that's not a great solution in water less-than-pristine. A second with a metal air-tube is more tolerable because it condenses some of your expired humidity and then re-evaporates it - a bit better. I'm very much looking forward to warm, moist gas...... Oh man, you are sooooo right. Thanks be ti him for giving us CCR. __________________ Attitude and self praise is no reccomendation. Dont try to be a great man, just be a man and let history be the judge of you. CHECK OUT OUR INTERWEBS FOR CUSTOM REBREATHER UPGRADES *WWW.NARKEDAT90.CO.UK* *http://www.grpservices.com/pursuit/* Supporting Shearwater Research Products in Europe
(Offline)

24th December 2005, 00:01	#12 (permalink)
Wetfun New Member Current Rebreather/s: Other CCR Dolphin Other SCR Other Rebreather/s: Other CCR Dolphin Other SCR Join Date: Oct 2005 Location: San Leandro, CA Posts: 2	Re: What temp is OC gas? OC gas chills from the tank to the hose due to adiabatic chilling, the temp drop is between 70F (3000psi to 140psi) to 100F (4500psi to 140psi) - so that OC stage tank hanging in 40F water could give a first few breaths at -30F to -60F It takes 10 feet of 1/2 inch SS tube to bring the temp up to near ambient water temp at 90RMV A Rebreather cools the gas post scrubber or post diver to near ambient water temp, cooling occurs in hoses and counterlungs
(Offline)

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