Mailing List Archive Mailing List Archive
At 09:47 01/12/95 EST, you wrote: > >Can you describe how you prepared them for O2 service? Any different than any >other first stage? > Basically the same as any other. Strip down to last bit and clean/degrease. Change relevant o-rings for suitable grade Viton ones, and lightly grease dynamic o-rings with a compatible grease. The seat material appears to be already compatible, likewise the new wiper rings should not be a problem. The environmental sealing system can be more expensive as it relies on having the water chamber packed with silicone grease, pressure being transmitted via a rubber boot. The grease is in contact with the two piston o-rings so you should really use one of the more outrageously expensive O2 compatible ones for this. HOWEVER, this is not an approved Scubapro procedure for this reg. This is how I do it for my own regs. They had a conversion kit for the Mk 10 for nitrox and they will have something coming along shortly for the Mk 20 I understand, there should be an announcement soon after January. Then there will be an official way of doing it. In case you have any more questions, I am afraid I will probably not be reading my email from Saturday pm until Xmas as I have to work again, this time South Africa. (We're supposed to be looking for G Whites on Monday, but I am not going in the water without a cage - with either me or the shark in it.) Hope this helps. Mark Caney Scubex, Cyprus Tel + 357-6-246680 (GMT + 2 hrs)
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