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Post by crpearson on Oct 20, 2020 19:32:12 GMT
Some D2's come with bands, while others do not. They seem to have the same pressure rating of 400PSI, which is below the nominal rocket belt fuel pressure of 580PSI. Does anyone know if the unbanded tanks can handle that much pressure? I assume they can since most tanks are massively underrated as far as pressure goes.
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Post by crpearson on Nov 16, 2021 0:07:23 GMT
I have purchased some unbanded D2 tanks. I will hydrostatically test them up to 600PSI and report back. Fingers crossed I don't blow up a bunch of money in tanks.
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Post by rayrocketman on Nov 19, 2021 5:20:05 GMT
I'm very curious about this. As near as I can tell, the banded style must have been WWII surplus. I visited a number of surplus yards and was only ever able to obtain a single banded D2 tank. Did pick up a few unbanded ones. One thing to consider is these tanks can rust, which is a potent peroxide catalyst. Consider having the interior plated. Nickel should work.
I've been looking at using surplus firefighting SCBA tanks. They're not as light or as slim as D2 tanks, but they are typically rated for 4500 psi and suited for rough service. They are also aluminum lined. In normal service, they time out and can be obtained fairly inexpensively near the end of their rated lifetime.
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Post by crpearson on Nov 20, 2021 19:20:48 GMT
Plating is an interesting idea. I was thinking if they survived the pressure testing, I would simply clean the inside very well, visually inspect it and pickle it as described by Bell for all wetted surfaces. I almost wonder if plating might chip and create small areas for liquid to trap and cause corrosion?
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