Hotfoot and others-
At the scrap yard today I found a bin of steel medical oxygen E-sized cylinders ( approx. 25" L x 4.5 dia ) with what I have learned is a CGA 870 valve in them. Bought 2, thinking about Hotfoot's gongs. The yard man says these are empty, but cylinder safety is like gun safety. I opened the valve, but don't really know about 870 valves and don't know if the valve and regulator 'couple' to release the gas or if the gas should just stream out when the valve is opened.
Put the cylinder very gently in my bench vise and put a 12" crescent on the valve body, very gently torqued it, but couldn't budge it with cautious force. Is it stuck or is there a bunch of pressure on it inside?
I'd like to pull the valve to be safe and then cut the cylinder bottom off to see what kind of sound it makes.
Any insights into 870 valves and/or removing this one. Pic attached.
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