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Nice selection, but what kind of money is €? Is that Euros? Where are you located?
Thanks for the education. I was under the impression we were supposed to be using viton for anything involving nitrox. Although I admit it never occurred to me to bring viton o-rings for yoke valves in my save-a-dive kit. I'm glad it's not an issue.What @mbs said.
To specifically answer your question,
you might reasonably need a tank o-ring, a low pressure hose ring and a high pressure hose oring. Finally, you might need a spool oring for the connection between your HP hose and SPG/Computer.
Tank orings come in three common sizes.
All are Duro 90, whether Viton, nitrile or polyethylene. Sizes are 2-014 (thin), 2-112 and 2-111. There are others, but not common.
All are probably in the mini tank kit above. I can't remember. Plus it has a tiny brass pick.
Low pressure orings are 2-010 Duro 70, or 2-011 Duro 70.
High pressure orings are 2-011 Duro 90 or 2-012 Duro 90
Spool orings are 2-003. Duro 90 is better for high pressure lines, but they sometimes split when squeezed over a spool because they are so inelastic. In that case, a Duro 70 will work fine.
Viton doesn't matter for Nitrox, but it does have one advantage: LONG shelf life.
The mini tank kit, with the orings switched out or supplemented with Viton orings from Viton Nitrox O-Ring Kit is my solution. Plus I carry thin bicycle wrenches to remove hoses. Sometimes, even a small adjustable wrench has cheeks that are too thick to fit between hose and first stage without spalling the chrome.
In my experience, 9 out of 10 dive boats will just give you another tank rather than fiddle with the tank oring leak. But that won't apply to you, since you said you were shore diving.
I'd drop by your LDS, and ask the tech to show you how to change hoses, how tight to make the connection, and how to use a pick on an oring. And if he has time, have him/her show you how to change a spool oring. Those o-rings are skittish.
Best advice ever right there. I've found more than one problem when testing my gear after service. I always find a way to test my gear a week or so before a trip - that way I can get it fixed before traveling if there's an issue and it has time to dry back out before packing.Please get your regs into a pool and try them out before your trip! People have more problems right after service than before!
Actually, I thought it was special lube that went into a regulator if it was to be used with nitrox as well. Is that also untrue?
Nice selection, but what kind of money is €? Is that Euros? Where are you located?
Thanks for the education. I was under the impression we were supposed to be using viton for anything involving nitrox. Although I admit it never occurred to me to bring viton o-rings for yoke valves in my save-a-dive kit. I'm glad it's not an issue.
Actually, I thought it was special lube that went into a regulator if it was to be used with nitrox as well. Is that also untrue?
Best advice ever right there. I've found more than one problem when testing my gear after service. I always find a way to test my gear a week or so before a trip - that way I can get it fixed before traveling if there's an issue and it has time to dry back out before packing.[/QUOT
Yes Euro and i am located in Europe (cyprus island) free delivery globally for all orders over 40 euro
Thanks! I wonder why the Trident kit then only comes with silicone?I would not use silicone. Yes, it lasts forever, but it's one a high pressure line. I'd use Christolube. All you need is the barest minimum coating the oring. Although,I do generously lube the threads of the connectors just to inhibit verdigris corrosion, because that connection is often ignored for years.
If you have a rounded spool, try pressing the spool onto the oring as the oring rests on a firm but giving surface, like a rubber inner tube on a table.
Alternatively, use your two thumb nails to slide the oring around the spool, pushing from both sides simultaneously.
Good luck! Have an extra oring for when you tear one trying.
a similar, yet somewhat counterdictive thread on o rings, Vinton and lube?
Dacor Pressure Gauge Hose Replacement