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Hi John, > So, on this logic, we need different valves for Argon cylinders - after all, wouldn't want the > oc-air-diver to breath it. DIN for Argon is R21,8 x 1/14" (nic-named 1/2"). > Different valves for Oxygen, high fO2 Nitroxes, High-fO2 Nitroxes have the same handling rules as Oxygen, so it is no risk to use Oxygen-Valves for Nitrox. Anyone who uses those Valve-Systems should be expected to know what he does, so no hopefully chance to hang you... > low fO2 Nitroxes (after all, the regs don't need to be O2-clean), Trimix ... Low-fO2 Nitroxes (e.g. EAN-32) have the same handling rules as Oxygen in many nations, so just use Oxygen-Valves... Trimix won't blow up the diveshop when a silly air-diver screws before reading, so no risk to use Air-Valves (i hope). > Its a slippery slope, lined with our dollars. No, the prices are similar, so when you use the correct type of DIN-Valve you will barely spend more dollars than if you use dangerous ones. > >So please do not bring things/ideas to the mass-market that are only save when diving in > >specialist-groups. By the way, i do not like that Scubapro-Valve, > >i prefer the old german 3/4" oxygen-valve, i think it is more robust. > > What's wrong with DIN? Nothing, but think about drunk teutons trying to screw oil-dipping R5/8" Regulators on everthing that looks like a beer barrel and use the R3/4"-DIN-Valve for EAN32 - "EAN100". It is ulta-cheep to transform a regulator to an other Typ (Code-thread) of DIN-Connector, I got my Oxygen-threads for free from my local gas dealer. Happy Diving Karl A (sometimes drunk) Teuton -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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