The only way it will work is with a backflow preventer (not a flashback arrestor). BFP's allow the gas to flow in one direction only. It should be put on the oxygen line from the concentrator immediately before the wye. And as Cosmo says the regulator on the oxygen tank should be set at the same pressure as the concentrator is.
I'm still not sure why you want to do this though. Tanked oxygen is at a higher purity than concentrator oxygen is (by about 2-3 percent), and all you are doing is diluting the tanked oxygen.
I'd say use one or the other, but not both at the same time unless you have a 4 port manifold and can run an independant center fire.
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Chaotic Glass: Safety for the glassworker, and random thoughts and opinions on the state of the glassworking world To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.
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