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>>. Under normal circumstances the o2 does not come in contact with > the oil so there should be no problem. << Using that rationale, you could pile used, oily rags in a heap around your O2 bottles in the garage... Sorry to hear that your friend was hurt, but it sounds like he got some bum advice. While I think the "industry" on the whole is a little paranoid about O2 cleaning, and O2 service equipment, it seems slightly foolish to use a gauge filled with flammable oil on an O2 system. Just my 2 cents, of an admittedly recent convert to home mixing. Rich L ----- Original Message ----- From: Tony Phillips <ameridiv@ga*.ne*> To: CAVERS <cavers@cavers.com>; techdiver <techdiver@te*.ne*> Sent: Saturday, June 03, 2000 1:48 PM Subject: oilfilled gauges > Just had a call from one of my friends. Seems he built a tank checker > utilizing an oil (glycerine?)filles pressure gauge, which he was assured was > o2 compatible (?) > He's been using it regularly to check his fills prior to departure for the > boat. This am he was checking his tanks, put the gauge on an o2 bottle at > around 2400psi. When he turned on the valve the gauge failed and seemingly > the blast of 2400psi o2 into the oil in the gauge ignited the oil. He now > has a hand full of copper shrapnel plus a load of burnt oil residue > splattered on him. > I've never seen a recommendation against oil filled gauges around o2 and > until now I've not worried about whether I was usind oil or air filles > gauges. Under normal circumstances the o2 does not come in contact with > the oil so there should be no problem. However the consequences of the oil > filling if the gauge fails would seem to dictate against oil filles gauges > in this application. > Any thoughts? > Tony Phillips >
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