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> Date sent: Fri, 22 Sep 1995 16:03:42 +0500 > From: gmcgee1@fo*.co* () > To: kevink@ap*.co* > Subject: Re: J, K, and/or DIN-valves > Copies to: Techdiver@terra.net > Kevin, > > Since the treads of a Din valve provide greater contact area this makes for > a stronger connection. Plus the captured O-Ring is designed to prevent > o-ring blow outs more so than a yoke valve. > > The better dive shops in my area have switched over to din and use a yoke > adapter to fill yoke style tanks. They say this is safer for the dive > shop employees. > > How about it divers should it be, half inch pipe thread, J, K, or din vavles??? > > What is the best bet for Tech. Divers? Let's do a little test. We'll take two 80's, one with a DIN valve, one with a regular K- Valve. Put a Poseidon Odin on the DIN valve, put a Scubapro MK-10 G250 (Yoke, not DIN w/adapter) on the K-Valve. Open the valves. The tanks must be filled to 3000psi. Now take a sledgehammer and slam once on the Yoke first stage. The connection will probably make it, the first stage probably won't :-). Now take same sledgehammer and slam once on the DIN first stage. Surprise, a connection will probably break and you'll have a real nasty accident. Now what have we proven? First: We're idiots for taking sledgehammers to valves with 3000psi behind them. Second: The pipette in the DIN valve shears off too easily. This has happened in a cave within the past year. Ken -- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Ken Sallot "Sallot's law of patches - A person's diving CIRCA ability is inversely proportional to how (904) 392-2007 many patches(stickers) they have on their kens@uf*.ed* jacket(car)" http://grove.ufl.edu/~ken -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
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